Ternary composition comprising spinosad, abamectin and diafenthiuron

Abstract

The present invention relates to stable synergistic insecticidal composition for the control of plant and crop pests including wide variety of insect pests. The present invention also relates to a process for preparation of such stable synergistic insecticidal composition for synergistic and efficacious control of wide variety of insect pests.

Description

[0001] STABLE SYNERGISTIC INSECTICIDAL COMPOSITION FIELD OF THE INVENTION The present invention relates to stable synergistic insecticidal composition for the control of plant and crop pests including wide variety of insect pests. More particularly, the present invention relates to a stable synergistic insecticidal composition comprising (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and (C) Compound of Formula I, chemically known as N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives. The present invention further relates to process of preparing said synergistic insecticidal composition and formulations thereof. BACKGROUND OF THE INVENTION Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the present invention, or that any publication specifically or implicitly referenced is prior art. In most cases, solo and binary formulations of insecticides are used to control pests, particularly insects. Pest resistance, is the most major pest control problem in agriculture. The combination of various actives and auxiliaries is a common method for preventing and controlling resistant pests. Different actives are compounded, and the actual application effect determines whether the composition has synergism, addition, or antagonism. The biological properties of known compounds are not entirely satisfactory in the areas of pest control, phytotoxicity, environmental and worker exposure, for example, it has been observed that the pests become resistant to pesticides which are at times administered in higher dosages to achieve the desired control, thereby leading to soil toxicity and other environmental hazards besides higher costs. Thus, it is always preferable to be able to reduce the amount of chemical agents released into the environment while still ensuring effective pest control. Although various pest control agent combinations have been studied, a high synergistic action has not always been found. There is however a need for improvement of these combinations. Controlling crop pest populations has been a major issue, and various traditional and advanced methods are being used to minimise the damage caused by insect pests. Continuous use of pesticides and insecticides in an uncontrolled and unscientific manner over the years has resulted in the development of resistance in insect pests, and this resistance continues to broaden in spectrum against a number of insecticides / pesticides. Continuous high-intensity insecticide and pesticide use has resulted in other critical issues such as the presence of large amounts of insecticide residues in agricultural products, increased environmental pollution and damage to ecological balance, and deteriorating health of consumers. With the onset of resistance to certain insect pests, there is a need in the art for a combination of actives that decrease the chances of resistance and improves the spectrum of disease and pest control. Hence, there is a need to develop a cost-effective synergistic composition which addresses the problem of resistance and soil toxicity and also is used at reduced dosages, controls environmental damage, offers broader crop protection, improved and healthy foliage, rainfastedness, improved crop yield, salves labour and control against various pests including insect pests, improves plant growth and is yet cost effective to the end user. To control insect pests, it is necessary to spray and use an insecticidal composition, effective for target insect pests at appropriate times throughout the cultivation period and insect life cycle. In the practice of pest control, particularly insect control, there are two main factors which determine the effectiveness of the treatment; 1) immediate action on the pests (known in the art as “knock-down action”), 2) long term action (known also as “residual action”). The effective insecticidal composition for insect control ought to qualify both these factors. It is always preferable to reduce the amount of chemical agents released into the environment while still ensuring effective pest control. Although insect pest control agent combinations have been studied, a high synergistic action has not always been found. There is however a need for improvement of these combinations. Single active compositions used over a long period of time has resulted in resistance. With the onset of resistance to certain pests, there is a need in the art for a combination of insecticidal actives that decrease the chances of resistance and improves the spectrum of disease and insect pest control. Combination of insecticides are used to broaden the spectrum of control of insect, to improve the insect control with synergistic effect, reduce dosage, thereby reducing environmental impact, to broaden the spectrum of control, decrease chances of development and management of resistance and to enhance residual control so lesser the number of sprays for crop protections and minimizing the pesticidal load in ecosystem. The combination of insecticides at times demonstrate an additive or synergistic effect that results in an improved control on the pests. Although, many combinations of insecticidal agents have been studied, a synergistic effect is rarely attained. Therefore, there is still a need for novel insecticidal composition comprising combination of insecticides which have different chemistry but are broad spectrum to cover efficacious control of large number of insect pests, which also exhibits synergistically enhanced action, a broader scope of activity at a reduced cost of treatment. Further, insecticidal compositions that can be applied at as low a dose as possible and be effective in controlling pest species of insects while causing as little harm as possible to beneficial insects and minimal disturbance in the environment are in demand by the farming community. Therefore, there is a need for an insecticidal formulation that is highly efficient, non- toxic, covers a broader spectrum of insects and is environment friendly and economical. Accordingly, there exists a continuous need for new insecticidal combinations to be applied so as to provide an economical and effective solution in terms of insect control, yield, plant growth, broader crop protection spectrum, reduce the burden on the environment / farmers, healthy foliage, saves labour cost and is yet cost-effective to the end user. There are many combinations of insecticides along with other insecticides are known in the art for the control of insect pests. For example, reference may be made to CN1663381A wherein, it discloses avermectin-spinosad nano suspending agent which is characterized by comprising the following components in percentage by mass: 1-25% of abamectin, 1-25% of spinosad, 0.1-10% of nano-carrier, 0.1-20% of vegetable oil, 1-8% of wetting agent, 1-8% of dispersing agent, 0.1-1% of defoaming agent, 0.1-1% of preservative, 0.1-1% of stabilizer, 1-5% of antifreezing agent, 0.1-4.5% of thickening agent and the balance of deionized water. Reference can be made to CN1557158A wherein it discloses composition pesticide made up of butyl ether urea and Avermectin, and the ratio of butyl ether urea and Avermectin is 500: 1- 1: between 1. There is however a need for improvement of these combinations. Single active combinations used over a long period of time has resulted in resistance. With the onset of resistance to certain insects, there is a need in the art for a combination of insecticidal actives that decreases chances of resistance and improves the spectrum of disease and insect pest control. Thus, there exists a need in the art for a composition comprising insecticides having different chemistry which show superior and effective control of broad range of insect pests. Therefore, one object of the present invention is to provide synergistic insecticidal composition for the control of broad range of insect pests including but not limited to thrips, aphids, white fly, mites, stem borer, boll worms, pod borer, fruit & shoot borer, Diamond back moth, chewing pests and entire sucking pests complex, which are resistant to existing insecticidal compositions and have prolonged and sustained insect pest control. Hence, present invention aims to overcome the problems of the prior art and provide a synergistic insecticidal composition comprising bioactive amounts of (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and (C) Compound of Formula I, chemically known as N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives. Spinosad is a new type of macrolide microbial insecticide that is derived from a species of Actinomycetes bacteria; Saccharopolyspora spinosa. The active components are a mixture of spinosad A and spinosad D, which has high-efficiency preventing and controlling activity against lepidopteran pests, some Diptera (mosquitoes, flies and the like), Coleoptera, Hymenoptera and Thysanoptera pests. Spinosad has a unique insecticidal mechanism, which prevents it from cross-resistance with other insecticides. It mainly acts on the target of the nicotinic acetylcholine receptor (nAChR) of insects. Spinosad is both a nerve poison and a stomach poison, so it kills pests that it contacts and those that consume it on the foliage they eat. However, studies have shown that Spinosad has little cross-resistance with neonicotinoid insecticides that also act on nAChR. Spinosad has a high environmental safety, its leaching and volatility in water is very weak, and will not cause pollution to groundwater and the atmosphere, its photodegradation half-life in water is less than 1 day. Spinosad has low toxicity to non-target organisms, will not kill natural enemies, has extremely low toxicity to birds, is safe for human and mammals, has no teratogenic, mutagenic or carcinogenic effects. Its chemical structure is as under:

[0002] SPINOSAD Abamectin is an insecticide belongs to the class of avermectin. Abamectin is a bacterium derived pesticide that is approved for use in many countries. It has a low aqueous solubility and is not volatile. It does not tend to be persistent in the environment. The action mechanism is to stimulate the release of a nerve transmission medium, namely r-aminobutyric acid, and interfere normal neurophysiological activities. Due to the osmosis, the influence of rainwater is small, and the fertilizer is safe to crops. Abamectin is adsorbed by soil in soil and cannot move and is decomposed by microorganisms, so that the abamectin has no accumulation effect in the environment and can be used as a component of comprehensive control. It mainly controls phytiphagus mites, leafminers, cockroachers, ants, pear psylla, nematodes including Meloidogyne spp It is used in wide variety of crops. It is used to kill insect pests in ornamental plants; fruit including citrus, pears, tomatoes, watermelon; Cotton; vegetable crops including eggplant, curcubits, beans. The structure of abamectin is shown as below:

[0003] Compound of Formula I, chemically known as N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]- N′-(1,1-dimethylethyl) thiourea belongs to a thiourea fungicide and has IUPAC name: 1-tert- butyl-3-(2,6-diisopropyl-4-phenoxyphenyl)thiourea. This compound has an action mechanism by oxidative phosphorylation. It acts as inhibitor of mitochondrial ATP synthase. It has a low aqueous solubility and a volatile, based on its chemical properties, it is unlikely to leach to groundwater. It has a low mammalian toxicity but is moderate to highly toxic for most biodiversity including aquatic life, bees and worms. It has the chemical structure as below: Compound of Formula i.e. N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl)thiourea The present invention also provides a novel method of preparing composition comprising above mentioned active ingredients, which composition is stable as well as provide desired bio-efficacy, synergy. Embodiments of the present invention may therefore ameliorate one or more of the above-mentioned problems. OBJECTS AND ADVANTAGES OF THE INVENTION Accordingly, the main objective of the present invention is to provide a synergistic insecticidal composition for control of broad range of insect pests affecting plants, crops. Another object of the present invention is to provide a synergistic insecticidal composition comprising (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and (C) Compound of Formula I, chemically known as N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl)thiourea or its agrochemically acceptable salts, esters or its derivatives. The present invention further relates to a process for preparation of such stable synergistic insecticidal composition for foliar spray treatment of plants and soil application treatment for synergistic and efficacious control of insect pests. Another objective of the present invention is to provide a stable synergistic insecticidal composition which provides broad spectrum control of insect pests including their eggs and larvae leading to lower rounds of sprays in a crop cycle. Another objective of the present invention is to provide a synergistic insecticidal composition for the control of insect pests including but not limited to thrips, whiteflies, Jassids, mites, stem borer, Capsule borer, Fruit borer, Diamond back moth, Aphids, American bollworm, Red spider mites (Tetranychus urticae), pod borer, Fruit borer (Harmigera ) (Scirtothripsdorsalis), chewing pests and entire sucking pests complex etc, which are resistant to existing insecticidal compositions and have prolonged insect pest control. Another objective of the present invention, the present synergistic insecticidal composition can be applied as a foliar spray to various plants and crops including Rice, Cotton, Sugarcane, citrus, watermelon, Wheat, Paddy, Chilli, Onion, Groundnut, Red gram, egg plants or Brinjal, Grapes, Cabbage, Cauliflower, Okra etc. Another objective of the present invention is to further reduce the costs of insect pests management operations and thus improvement in benefit: cost ratio. It is further another objective of the present invention to provide a novel and effective synergistic insecticidal composition which is active against all life stages of major plant insects including chewing pests and entire sucking pests’ complex. It is another objective of the present invention to provide a novel and effective synergistic insecticidal composition which is ideal for insect pests resistance management and enhanced disease control. Another objective of the present invention is to provide a process for the preparation of aforementioned synergistic insecticidal composition. It is another objective of the present invention to provide a novel and effective synergistic insecticidal composition which uses lesser amounts of the actives in the composition as compared to the actives when used alone. It is another objective of the present invention to provide a novel and effective synergistic insecticidal composition that provides immediate effect and long –term insect pest control. A further objective of the present invention is to provide a method for insect pest control that is both effective in the short and long term. It is another objective of the present invention to provide a stable synergistic insecticidal composition which is stable and can be easily formulated. It is another objective of the present invention to provide stable and ready to use composition having synergistic and superior properties compared to prior art compositions or mixtures or formulations. Another objective of the present invention is to provide synergistic composition that promote plant health and increases plant yield in the field. Another objective of the present invention is to provide synergistic composition which is simple, easy and convenient to carry out its application on crops, plants. It is another objective of the present invention to provide a novel and effective stable synergistic insecticidal composition which is environmentally safe, possesses broad spectrum bio-efficacy, is non-phytotoxic. It is yet another objective of the present invention to provide a novel and effective synergistic insecticidal composition, which has improved stability during the desired shelf life. Yet another objective of the present invention is to provide a method of synergistic and efficacious control of broad spectrum of insect pests by using a stable synergistic insecticidal composition comprising (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and (C) Compound of Formula I, chemically known as N-[2,6-bis(1-methylethyl)-4- phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives. Advantages of the present invention are as below: • Broad spectrum activity against various insect-pests including but not limited to chewing pests and sucking pests complex i,e spotted pod borer , pod borer (Heliothis armigera), Gram pod borer (Helicoverpa armigera), Black gram pod borer complex (Etiella zinckennella, Spodoptera litura and Maruca vitrata), American bollworm, Fruit borer, Thrips, Capsule borer, Pod borer, Shoot borer, Diamond back moth, Stem borer, Brown plant hopper, Green leaf hopper, Rice leafhopper, Rice Gall midge, Whorl maggot, White backed plant hopper, Aphids, Jassids, White-fly, Boll worms, Leaf Folder, Brown Plant Hopper, Termites, Stem borer, Brown plant hopper, Green leaf hopper Rice leafhopper, Rice gall midge, Whorl maggot, White backed plant hopper, Early shoot borer,Root borer, White grub (Holotrichia consanguinea), Diamond black moth, Yellow Stem Borer, , Leaf blast, Powdery Mildew, Anthracnose / Fruit Rot, Mites, Thrips, red spider mites, purple mites, chilli yellow mite, whitefly, mealy bug and bollworm, Whorl maggot, White grub (Holotrichia consanguineo) and Termite (adontotermes obesus), Whitefly (Bemisiatabaci), Jassid (Amrascadevastans) and thrips (Thrips tabaci), (Aphis ossypi) etc. • The insecticidal composition of the present invention shows excellent controlling effects (synergistic controlling effects) which could never be expected from a single component alone. • Also, it shows high plant insects controlling effects against existing insect pests resistant to chemicals, and no chemical damage against plants is observed. • The insecticidal composition of present invention is useful for treatment of plants and crops including but not limited to Rice, Cotton, Sugarcane, citrus, watermelon, Wheat, Paddy, Chilli, Onion, Groundnut, Red gram, egg plants or Brinjal, Grapes, Cabbage, Cauliflower, Okra etc. SUMMARY OF THE INVENTION In summary, the present invention relates to a stable synergistic insecticidal composition comprising (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and (C) Compound of Formula I, chemically known as N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl)thiourea or its agrochemically acceptable salts, esters or its derivatives. The present invention also relates to a process for preparation of such stable synergistic insecticidal composition for foliar spray treatment of plants and soil application treatment for synergistic and efficacious control of insect pests. In one embodiment, the present invention provides a stable synergistic insecticidal composition comprising bioactive amounts of: (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and (C) Compound of Formula I, i.e., N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives. In a preferred embodiment, the present invention provides a stable synergistic insecticidal composition comprising (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by weight of the composition. (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by weight of the composition; and (C) Compound of Formula I, i.e. N-[2,6-bis(1-methylethyl)- 4-phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by weight of the composition. In one another preferred, embodiment, the present invention provides a stable synergistic insecticidal composition comprising A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 65% by weight of the composition; B) Abamectin or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 65% by weight of the composition; and C) Compound of Formula I, i.e. N-[2,6-bis(1- methylethyl)-4-phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 65% by weight of the composition. In one another preferred, embodiment, the present invention provides a stable synergistic insecticidal composition comprising A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 35% by weight of the composition; B) Abamectin or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 35% by weight of the composition; and C) Compound of Formula I, i.e. N-[2,6-bis(1- methylethyl)-4-phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 35% by weight of the composition. In one embodiment, the present invention provides a stable synergistic insecticidal composition comprising bioactive amounts of: (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; (C) Compound of Formula I, i.e. N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives; and (D) One or more agrochemically acceptable excipients. In accordance with an embodiment of the invention, there is provided a synergistic insecticidal composition comprising active ingredients present in the weight percentage range as given below: Spinosad or its Abamectin or its Compound of Formula I, i.e. agrochemically acceptable agrochemically N-[2,6-bis(1-methylethyl)-4- salts, esters or its acceptable salts, esters or phenoxyphenyl]-N′-(1,1- derivatives its derivatives dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives 0.1-85 % 0.1-85 % 0.1-85 % In another embodiment, the synergistic insecticidal composition of the present invention controls various insects including their eggs or larvae in field crops, vegetables, fruits, oil seed and pulses, horticulture & forestry, veterinary, etc. In another embodiment of the present invention, the present synergistic insecticidal composition can be applied as a foliar spray, soil drenching, seed dressing, application as paste to the targeted plants / trees, broadcasting, etc. In yet another embodiment of the present invention, the present synergistic insecticidal composition can be applied as a foliar spray to various plants and crops including including Rice, Cotton, Sugarcane, citrus, watermelon, Wheat, Paddy, Chilli, Onion, Groundnut, Red gram, egg plants or Brinjal, Grapes, Cabbage, Cauliflower, Okra etc. Further, the invention provides a process for preparation of the synergistic insecticidal composition of the present invention. In one embodiment of the present invention, the present insecticidal composition is stable and has enhanced shelf life. DESCRIPTION OF THE INVENTION In describing the embodiments of the invention, specific terminology is resorted for sake of clarity. However, it is not intended that the invention be limited to specific terms so selected and it is to be understood that each specific term includes all technical equivalents that operate in a similar manner to accomplish a similar purpose. Discussed below are some representative embodiments of the present invention. The invention in its broader aspects is not limited to the specific details and representative methods. The definitions provided herein for the terminologies used in the present disclosure are for illustrative purpose only and in no manner limit, the scope of the present invention disclosed in the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the invention pertains. As used in the present disclosure, the forms "a,” "an," and "the" may be intended to include the plural forms as well, unless the context clearly suggests otherwise. Thus, for example, reference to a composition containing “a compound” includes a mixture of two or more compounds. It should also be noted that the term “or” is generally employed in its sense including “and / or” unless the content clearly dictates otherwise. The terms "comprises," "comprising," “including,” and “having,” are open ended transitional phrases and therefore specify the presence of stated features, integers, steps, operations, elements, but do not forbid the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The particular order of steps disclosed in the method and process of the present disclosure is not to be construed as necessarily requiring their performance as described or illustrated. It is also to be understood that additional or alternative steps may be employed. Variations or modifications to the composition of this invention, within the scope of the invention, may occur to those skilled in the art upon reviewing the disclosure herein. Such variations or modifications are well within the spirit of this invention. The expression of various quantities in terms of “% w / w” or “%” means the percentage by weight, relative to the weight of the total solution or composition unless otherwise specified. The term “active ingredient” (a.i.) or “active agent” or “active” used herein refers to that component of the composition responsible for control and killing of insect pests “Bioactive amounts” as mentioned herein means that amount which, when applied for treatment of crops, is sufficient to give effect in such treatment The term “synergistic”, as used herein, refers to the combined action of two or more active agents blended together and administered conjointly that is greater than the sum of their individual effects As used herein, the term “insecticide”, refers to any chemical substance used to destroy / kill, inhibit or control the insect pests. The term “control” means to inhibit the ability of insect pests to survive, grow, feed and / or reproduce, or to limit the pests related damage or loss in crop plants. The term “pests” used herein includes insect pests affecting the crops. The terms “plants” and “vegetation” include, but are not limited to, germinant seeds, emerging seedlings, plants emerging from vegetative propagules, and established vegetation. The term “crop” shall include a multitude of desired crop plants or an individual crop plant growing at a locus. The term “health of a plant” or “plant health” is defined as a condition of the plant and / or its products. As a result of the improved health; yield, plant vigour, quality and tolerance to abiotic or biotic stress is increased. As a result, the health of a plant is increased even in the absence of pest pressure. Accordingly, in an especially preferred embodiment of the method according to the invention, the health of a plant is increased both in the presence and absence of biotic or abiotic stress factors. In an especially preferred embodiment of the invention, the yield of the treated plant is increased. In another preferred embodiment of the invention, the yield of the plants treated using the composition of the present invention, is increased. The term “benefit: cost” refers to a ratio used in a cost-benefit analysis to summarize the overall relationship between the relative costs and benefits of a proposed composition. If a treatment has a benefit-cost ratio greater than 1.0, the treatment is expected to deliver a positive and better outcome. The present invention includes within its scope, all possible salts, esters and derivatives or any other modified forms including polymorphic forms, of the active ingredients of the composition. It has been observed by the inventors of the present invention that the composition of present invention not only has enhances bio-efficacy and provides synergistic effect but also gives control of insects for a longer duration as compared to solo and binary formulations of insecticides. In yet another embodiment of the present invention, the present synergistic insecticidal composition can be applied as a foliar spray to various plants and crops including Rice, Cotton, Sugarcane, citrus, watermelon, Wheat, Paddy, Chilli, Onion, Groundnut, Red gram, egg plants or Brinjal, Grapes, Cabbage, Cauliflower, Okra etc. In yet another embodiment of the present invention, a synergistic insecticidal composition for the control of insect pests including but not limited to thrips, whiteflies, Jassids, mites, stem borer, Capsule borer, Fruit borer, Diamond back moth, Aphids, American bollworm, Red spider mites (Tetranychus urticae), pod borer, Fruit borer (Harmigera ) (Scirtothripsdorsalis), chewing pests and entire sucking pests complex, which are resistant to existing insecticidal compositions and have prolonged insect pest control, Fruit borer (Helicoverpa armigera) and yellow mite (Polyphagotarsonemus latus), etc. In another embodiment of the present invention, the synergistic insecticidal composition of the present invention further comprises one or more agrochemically acceptable excipients including but not limited to the group comprising surfactant(s), dispersing agent(s), co- dispersant, anti-freezing agent(s), emulsifier(s) (anionic and non-ionic), anti-foaming agent / defoamer(s), wetting agent(s), antimicrobial / anti-bacterial agent(s), thickening agent / thickener(s), quick coating agent(s) or sticking agents / sticker(s), spreader(s), binder(s), pH-adjusting agent(s), anti-caking agent(s), adjuvant(s), filler(s) / suspension aid(s), colorant(s), carrier(s), buffering agent(s), polymer(s), rheology modifier(s), solvent(s), co-solvent(s) or a combination thereof. Additional components may also be included, e.g., protective colloids, carriers, adhesives, thixotropic agents, penetration agents, stabilisers, sequestering agents. More generally, the active materials can be combined with any solid or liquid carrier / additive, which complies with usual formulation techniques. An adjuvant used in the present invention is any material that is added to an agrochemical formulation to enhance or modify the performance of the formulation. An adjuvant used in the present invention to make it a safer to ecological environmental, having low toxicity and having no phytotoxicity effects on any part of the plant. Examples of surfactant(s) and / or dispersing agent and / or co-dispersant used herein include but not limited to polymeric anionic dispersant, polyarylphenyl ether phosphate, tristyryl phenol ethoxylate, Polymethyl methacrylate-polyethylene glycol graft copolymer, acrylate copolymer, acrylic graft copolymer, non-ionic proprietary surfactant, ethoxylated tristryl phenol Sulphate, alkyl naphthalene formaldehyde condensate ,naphthalene sulfonic acid, sodium salt condensate with formaldehyde, ethoxylated oleyl cetyl alcohol, polyalkelene glycol ether, ethoxylated fatty alcohol, Polymethyl methacrylate, Sodium polymethyl methacrylate, sodium polyacrylate, sodium lignosulphonate, calcium lignosulphonate, alkylphenol polyoxyethylene ether, sodium salt of alkyl or polyalkyl naphthalene sulfonate formaldehyde condensate, polycarboxylate or sodium salt of polycarboxylate, fatty alcohol polyoxyethylene ether, alcohol polyglycol ether or mixtures thereof and present in the range of 0.1-20% by weight of the composition. Examples of wetting agent used herein include but not limited to tristyrylphenol ethoxylate non-ionic emulsifier, mixture of non-ionic surfactants, alkoxylated alcohol, block copolymer, alcohol polyglycol ether, alkyl olefin sulphates, dioctyl sulpho succinate, alkyl naphthalene sulphate ,Di-isopropyl Napthalene sulphonate, Polyalkoxy ethers, alkyl phenol ethoxylates, tri- styrenated phenol ethoxylate, EO / PO block co-polymers, butyl polyalkylene oxide block copolymer, sodium lauryl sulphate, sodium ligno sulphates or mixtures thereof and present in the range of 0.1-20% by weight of the total composition. Examples of defoamer or antifoaming agent used herein include but not limited to silicon emulsion based anti-foam agents, Siloxane polyalkyleneoxide, Polydimethylsiloxane, trisiloxane ethoxylates, silicone oil, silicone compound, C10～C20 saturated fat acid compounds or C8～C10 aliphatic alcohols compound, vegetable oil based antifoam, tallow based fatty acids, polyalkyleneoxide polydimethylsiloxane emulsion and mixtures thereof and present in the range of 0.01-5.0 % by weight of the composition. Examples of anti-freezing agent used herein include but not limited to comprising glycol, propylene glycol, polyvinyl alcohol, mono ethylene glycol, glycerine, diethylene glycol, sorbitol, urea, mannitol, polyethylene glycol or mixtures thereof and present in the range of 1.0-20% by weight of the composition. Examples of fillers used herein include but not limited to silicon dioxide, china-clay, kaolin, starch, bentonite, precipitated silica, fumed silica, talcum powder, lactose, ammonium sulphate, water, sodium Sulphate, magnesium sulphate, sodium citrate, sodium chloride, potassium chloride and mixtures thereof and present in the range of 5-60 % by weight of the composition. Examples of anti-caking agent used herein include but not limited to group of talc, hydrous magnesium silicate, magnesium carbonate, calcium carbonate, precipitate silica, hydrophobic fumed silica and mixtures thereof and present in the range of 2.0-10% by weight of the composition. Examples of carriers used herein include but not limited to silicon dioxide, china clay, kaolin, starch, bentonite, precipitated silica, fumed silica, talcum powder, lactose, ammonium sulpha or mixture there of present in the range of 1.0-45 % by weight of the composition. Examples of biocide or anti-microbial agent used herein include but not limited to 1, 2,- Benzisothiazolin -3-one, blends of 1,2,- benzisothiazolin-3-one and 2-methyl-4-isothiazolin-3- one, 5-chloro-2-methyl-4-isothiazolin-3-one, blends of 5-chloro-2-methyl-4-isothiazolin-3- one and 2-methyl-4-isothiazolin-3-one, zinc 1-hydroxy-2(1H)-pyridinethione, blends of zinc l- hydroxy-2(1H)-pyridinethione and zinc oxide, and 2-n-octyl-4- isothiazolin-3-one or mixture thereof and present in the range of 0.01 to 10 % by weight of the composition. Examples of rheology modifier or thickeners or thickening agents used herein include but not limited to polysaccharides, carboxymethyl cellulose, bentonite clay, aluminium magnesium silicate, hydroxy propyl cellulose, xanthan gum, gum arabic, gaur gum, carbomer, chitosan, precipitated silica or mixtures thereof and present in the range of 0.01-2.5 % by weight of the composition. Examples of emulsifier(s) used herein include but not limited to araliphatic or aliphatic non- ionic emulsifier such as ethoxylated mono-, di- and trialkylphenols, ethoxylates of long-chain alcohols and polyethylene oxide / polypropylene oxide homo- and copolymers, EO / PO block copolymers, polymeric emulsifier, Ethoxylates of long-chain alkanols, Ethoxylated Tristyrylphenol, Castor oil ethoxylate, ethoxylated monoalkylphenol, ethoxilates of cetyl alcohol and / or stearyl alcohol ; Tristyrylphenol ethoxylate,and Anionic emulsifier such as alkali metal and ammonium salts of alkyl sulfates, of hemisulfates of ethoxylated alkanols and ethoxylated alkylphenols, alkylsulfonic acids, bis(phenylsulfonic acid) ethers and their alkali metal or ammonium salts, sodiumlaurylsulfate, sodium (cetyl / stearyl) sulfate or mixtures thereof and present in the range of 0.01 -20 % by weight of the composition. Examples of solvent(s) and co-solvent(s) used herein include but not limited to polar and non- polar solvent from the group comprising heavy aromatic hydrocarbon, N methyl pyrollidone (NMP) , Solvent Naphtha (Solvent C-9), Di methyl sulfoxide (DMSO), Dimethylformamide (DMF), N- alcohol, 2-ethyl hexanol , alkyl amide, vegetable oil, mineral oil, distilled water, aromatic solvents, water or mixtures thereof and present in the range of 1.0 to 20 % by weight of the composition. Examples of polymer(s) used herein include but not limited to isocyanate, polyisocyanate used is toluene-2, 4-diisocyanate (TDI), diethylenetriamine (DETA),ethylene diamine (EDA), triethylenetetramine (TETA), and / or hexamethylene diamine (HMDA), diethanolglycine sodium salt, ethanoldiglycine disodium salt, hydroxymonocarboxylic acid compounds, hydroxydicarboxylic acid compounds, tetrasodium N,N-bis(carboxylatomethyl)-L-glutamate (GLDA), methylene diisocyanate (MDI), and / or low molecular weight polydiisocynates or mixtures thereof and present in the range of 0.01- 5.0 % by weight of the composition. The composition of the present invention can also comprise or may be applied together and / or sequentially with further active compounds. These further compounds can be selected from fertilizers or micronutrient donors or microorganisms or other preparations that influence plant growth, such as inoculants (e.g. a strain of nitrogen-fixing bacteria), and plant inducers. The composition according to the invention can be applied to any and all developmental stages of insect pests, such as egg, nymph, larvae, pupa, and adult. The insect pests may be controlled by contacting the target insect pest, habitat, breeding ground or its locus with a bioactive amount of the novel and inventive insecticidal composition of the present invention. In yet another embodiment of the present invention, the insecticidal composition is formulated as but not limited to Capsule suspension (CS), Dispersible concentrate (DC), Dustable powder (DP), Powder for dry seed treatment (DS), Emulsifiable concentrate (EC), Emulsifiable granule (EG), Emulsion water-in-oil (EO), Emulsifiable powder (EP), Emulsion for seed treatment (ES), Emulsion oil-in-water (EW), Flowable concentrate for seed treatment (FS), Granules (GR), Micro-emulsion (ME), Oil-dispersion (OD), Oil miscible flowable concentrate (OF), Oil miscible liquid (OL), Oil dispersible powder (OP), Suspension concentrate (SC), Suspension concentrate for direct application (SD), Suspo-emulsion (SE), Water soluble granule (SG), Soluble concentrate (SL), Spreading oil (SO), Water soluble powder (SP), Water soluble tablet (ST), Ultra-low volume (ULV) suspension, Tablet (TB), Ultra-low volume (ULV) liquid, Water dispersible granules (WG), Wettable powder (WP), Water dispersible powder for slurry seed treatment (WS), Water dispersible tablet (WT), a mixed composition of CS and SC (ZC) or a mixed composition of CS and SE (ZE) or a mixed composition of CS and EW (ZW). In yet another embodiment of the present invention, the invention further provides the process for preparation of the said insecticidal composition wherein, the said composition can be one or more of Capsule suspension (CS), Dispersible concentrate (DC), Dustable powder (DP), Powder for dry seed treatment (DS), Emulsifiable concentrate (EC), Emulsifiable granule (EG), Emulsion water-in-oil (EO), Emulsifiable powder (EP), Emulsion for seed treatment (ES), Emulsion oil-in-water (EW), Flowable concentrate for seed treatment (FS), Granules (GR), Micro-emulsion (ME), Oil-dispersion (OD), Oil miscible flowable concentrate (OF), Oil miscible liquid (OL), Oil dispersible powder (OP), Suspension concentrate (SC), Suspension concentrate for direct application (SD), Suspo-emulsion (SE), Water soluble granule (SG), Soluble concentrate (SL), Spreading oil (SO), Water soluble powder (SP), Water soluble tablet (ST), Ultra-low volume (ULV) suspension, Tablet (TB), Ultra-low volume (ULV) liquid, Water dispersible granules (WG), Wettable powder (WP), Water dispersible powder for slurry seed treatment (WS), Water dispersible tablet (WT), a mixed composition of CS and SC (ZC) or a mixed composition of CS and SE (ZE) or a mixed composition of CS and EW (ZW). In yet another preferred embodiment of the present invention, the present insecticidal composition can be formulated Suspension concentrate (SC), Suspo-emulsion (SE) or Water dispersible granules (WG). The composition of the present invention is effective in controlling broad spectrum of insect but not limited to thrips, whiteflies, Jassids, mites, stem borer, Capsule borer, Fruit borer, Diamond back moth, Aphids, American bollworm, Red spider mites (Tetranychus urticae), pod borer, Fruit borer (Harmigera ) (Scirtothripsdorsalis), Fruit borer (Helicoverpa armigera) and yellow mite (Polyphagotarsonemus latus) chewing pests and entire sucking pests complex, which are resistant to existing insecticidal compositions and have prolonged insect pest control etc including insects resistant to chemicals, and shows excellent controlling effects (synergistic controlling effects) which could never be expected from a single component alone. Accordingly, the present invention relates to synergistic insecticidal composition comprising bio-active amounts of (A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and (C) Compound of Formula I i.e. N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives. In one embodiment, the present invention provides a stable synergistic insecticidal composition comprising bioactive amounts of: (A) Spinosad or its agrochemically acceptable salts, esters or its derivatives; (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; (C) Compound of Formula I, i.e. N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives; and (D) One or more agrochemically acceptable excipients. In one embodiment of the present invention, the synergistic insecticidal composition comprises (A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by the weight of the composition. (B) Abamectin or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by weight of the composition;and (C) Compound of Formula I i.e. N-[2,6-bis(1-methylethyl)-4- phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by weight of the composition. In one another preferred, embodiment, the present invention provides a stable synergistic insecticidal composition comprising A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 65% by weight of the composition; B) Abamectin or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 65% by weight of the composition; and C) Compound of Formula I, i.e. N-[2,6-bis(1- methylethyl)-4-phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 65% by weight of the composition. In one another preferred, embodiment, the present invention provides a stable synergistic insecticidal composition comprising A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 35% by weight of the composition; B) Abamectin or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 35% by weight of the composition; and C) Compound of Formula I, i.e. N-[2,6-bis(1- methylethyl)-4-phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives, in the range of 0.1 to 35% by weight of the composition. In one another embodiment, the synergistic insecticidal composition of the present invention further comprises one or more agrochemically acceptable excipients. In another preferred embodiment of the present invention, the insecticides along with the formulating agents or agrochemically acceptable excipients in the selective weight percentages range form a stable formulation, having stability, is broad spectrum, with effective, synergistic insecticidal activity, with reduced amount of actives. In one embodiment, the composition according to the present invention acts synergistically to control insect pest in various crops. In another embodiment, the synergistic insecticidal composition of the present invention is found to be effective to control wide variety of insect pests. Plant disease control is ordinarily accomplished by applying an effective amount of a synergistic composition of the present invention either pre-or post-infection, to the portion of the plant to be protected such as the roots, stems, foliage, fruit, seeds, tubers or bulbs, or to the media (soil or sand) in which the plants to be protected are growing. The composition can also be applied to the seed to protect the seed and seedling. In an embodiment the synergistic insecticidal composition of the present invention is found to be effective to control wide variety of insect pests. More particularly, the composition of the present invention is used to control wide variety of the insect pests including but not limited to thrips, whiteflies, Jassids, mites, stem borer, Capsule borer, Fruit borer, Diamond back moth, Aphids, American bollworm, Red spider mites (Tetranychus urticae), pod borer, Fruit borer (H.armigera ) (Scirtothripsdorsalis), chewing pests and entire sucking pests complex, which are resistant to existing insecticidal compositions and have prolonged insect pest control. In another embodiment, the present invention is used for controlling crop pests in various crops and plants including but not limited to including Rice, Cotton, Sugarcane, citrus, watermelon, Wheat, Paddy, Chilli, Onion, Groundnut, Red gram, egg plants or Brinjal, Grapes, Cabbage, Cauliflower, Okra etc. In an embodiment, the kit-of-parts comprises an instructions manual, said instructions manual comprising instructions directing a user to admix the components before being used. Before describing the present invention in detail, it is to be understood that this invention is not limited to particularly exemplified systems or process parameters that may of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments of the invention only and is not intended to limit the scope of the invention in any manner. The use of examples anywhere in this specification including examples of any terms discussed herein is illustrative only, and in no way limits the scope and meaning of the invention or of any exemplified term. Likewise, the invention is not limited to various embodiments given in this specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In the case of conflict, the present document, including definitions will control. Through the insecticidal composition of present invention, the number of applications to control wide range of insect-pests appearing at the same time is minimised. The composition of present invention is highly safe to the user and to the environment. The composition offers the user a single homogenous application eliminating the need for tank mix. The composition also is cost-effective as it provides much greater simultaneous control and can be used in a variety of crops with a broader spectrum of protection. Representative examples of the present composition of this invention is provided below and is not to be construed as limiting in any manner: Compound of formula I, referred herein pertains to N-[2,6-bis(1-methylethyl)-4- phenoxyphenyl]-N′-(1,1-dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives. Examples: General Recipe %(w / w) of S.No. Ingredients the composition 1 Spinosad Technical 0.1-85 2 Abamectin Technical 0.1-85 3 Compound of formula I Technical 0.1-85 Surfactant / Dispersing agent(s)- polymeric anionic dispersant, polyarylphenyl ether phosphate, tristyryl phenol ethoxylate, Polymethyl methacrylate-polyethylene glycol graft copolymer, acrylate copolymer, acrylic graft copolymer, non-ionic proprietary surfactant, ethoxylated tristryl phenol Sulphate, alkyl naphthalene formaldehyde condensate ,naphthalene sulfonic acid, sodium salt condensate with formaldehyde, 4 ethoxylated oleyl cetyl alcohol, polyalkelene glycol ether, ethoxylated 0.1-20 fatty alcohol, Polymethyl methacrylate, Sodium polymethyl methacrylate, sodium polyacrylate, sodium lignosulphonate, calcium lignosulphonate, alkylphenol polyoxyethylene ether, sodium salt of alkyl or polyalkyl naphthalene sulfonate formaldehyde condensate, polycarboxylate or sodium salt of polycarboxylate, fatty alcohol polyoxyethylene ether, alcohol polyglycol ether or mixtures thereof. Wetting agent(s)- tristyrylphenol ethoxylate non-ionic emulsifier, mixture of non-ionic surfactants, alkoxylated alcohol, block copolymer, alcohol polyglycol ether, alkyl olefin sulphates, dioctyl sulpho succinate, alkyl naphthalene sulphate ,Di-isopropyl Napthalene sulphonate, 0.1-20 Polyalkoxy ethers, alkyl phenol ethoxylates, tri-styrenated phenol ethoxylate, EO / PO block co-polymers, butyl polyalkylene oxide block copolymer, sodium lauryl sulphate, sodium ligno sulphates or mixtures thereof Defoamer / Anti-foaming agent- silicon emulsion based anti-foam agents, Siloxane polyalkyleneoxide, Polydimethylsiloxane, trisiloxane ethoxylates, silicone oil, silicone compound, C10～C20 saturated fat acid 0.01-5.0 compounds or C8～C10 aliphatic alcohols compound, vegetable oil based antifoam, tallow based fatty acids, polyalkyleneoxide polydimethylsiloxane emulsion and mixtures thereof Anti-freezing agent(s)- glycol, propylene glycol, polyvinyl alcohol, mono ethylene glycol, glycerine, diethylene glycol, sorbitol, urea, mannitol, 1.0-20 polyethylene glycol or mixtures thereof Filler(s)- silicon dioxide, china-clay, kaolin, starch, bentonite, precipitated silica, fumed silica, talcum powder, lactose, ammonium sulphate, water, sodium 5-60 Sulphate, magnesium sulphate, sodium citrate, sodium chloride, potassium chloride and mixtures thereof Anti-caking agent(s)- group of talc, hydrous magnesium silicate, magnesium carbonate, calcium carbonate, precipitate silica, hydrophobic fumed silica and 2.0-10 mixtures thereof Carrier(s)- silicon dioxide, china clay, kaolin, starch, bentonite, precipitated silica, fumed silica, talcum powder, lactose, ammonium sulpha or mixture there 1.0-45 of Biocide / Anti-microbial agent (s)- 1, 2,- Benzisothiazolin -3-one, blends of 1,2,- benzisothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, 5-chloro-2- 0.01-10.0 methyl-4-isothiazolin-3-one, blends of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, zinc 1-hydroxy-2(1H)-pyridinethione, blends of zinc l-hydroxy-2(1H)-pyridinethione and zinc oxide, and 2-n-octyl-4- isothiazolin-3-one or mixture thereof Rheology modifier / Thickening agent(s)- polysaccharides, carboxymethyl cellulose, bentonite clay, aluminium magnesium silicate, 0.01-2.5 hydroxy propyl cellulose, xanthan gum, gum arabic, gaur gum, carbomer, chitosan, precipitated silica or mixtures thereof Emulsifier(s)- araliphatic or aliphatic non-ionic emulsifier such as ethoxylated mono-, di- and trialkylphenols, ethoxylates of long-chain alcohols and polyethylene oxide / polypropylene oxide homo- and copolymers, EO / PO block copolymers, polymeric emulsifier, Ethoxylates of long-chain alkanols, Ethoxylated Tristyrylphenol, Castor oil ethoxylate, ethoxylated monoalkylphenol, ethoxilates of cetyl alcohol and / or stearyl alcohol ; 0.01-20 Tristyrylphenol ethoxylate,and Anionic emulsifier such as alkali metal and ammonium salts of alkyl sulfates, of hemisulfates of ethoxylated alkanols and ethoxylated alkylphenols, alkylsulfonic acids, bis(phenylsulfonic acid) ethers and their alkali metal or ammonium salts, sodiumlaurylsulfate, sodium (cetyl / stearyl) sulfate or mixture thereof Solvent or co-solvent(s) - polar and non-polar solvent from the group comprising heavy aromatic hydrocarbon, N methyl pyrollidone (NMP) , Solvent Naphtha (Solvent C-9), Di methyl sulfoxide (DMSO), 1.0-20 Dimethylformamide (DMF), N- alcohol, 2-ethyl hexanol , alkyl amide, vegetable oil, mineral oil, distilled water, aromatic solvents, water or mixtures thereof Polymer(s)- isocyanate, polyisocyanate used is toluene-2, 4-diisocyanate (TDI), diethylenetriamine (DETA),ethylene diamine (EDA), triethylenetetramine (TETA), and / or hexamethylene diamine (HMDA), diethanolglycine sodium salt, ethanoldiglycine disodium salt, 0.01-5.0 hydroxymonocarboxylic acid compounds, hydroxydicarboxylic acid compounds, tetrasodium N,N-bis(carboxylatomethyl)-L-glutamate (GLDA), methylene diisocyanate (MDI), and / or low molecular weight polydiisocynates Distilled water QS Total 100 Example 1. Spinosad 10% + Abamectin 1.2% + Compound of formula I 14% SC CHEMICAL COMPOSITION: Sr. Ingredients Concentration (%w / w) No. 1 Spinosad Technical 10 2 Abamectin Technical 1.2 Compound of formula I 3 14 Technical 4 Acrylic graft copolymer 3.5 Non-ionic proprietary 5 1.5 surfactant 6 Propylene glycol 7.0 7 1,2-benzisothiazolin-3-one 0.1 Polydimethylsiloxane 8 emulsion 1.0 9 Xanthan Gum 0.3 10 Distilled Water Q.S. Total 100.0 FORMULATION PROCESS: 1. The mixture of surfactants (Acrylic graft copolymer, Non-ionic proprietary surfactant), Polydimethylsiloxane emulsion & Propylene Glycol (PG) were first diluted in required D.M.Water, and solubilized by high shear mixing. 2. To the above solution, then added Spinosad Technical, Abamectin Technical, and Compound of formula I Technical. Mixed well to make the homogeneous mass. 3. The above mixed mass was grinded in bead Mill. Grinding was carried out until a mean particle size of below 5 microns was obtained. 4. Prepared 2% gum solution – Took 100 g DM water and added 0.2 g of 1,2- Benzisothiazolin-3-one, then under slow stirring added 2 g xanthan gum. 5. To the above grinded mass, added 2% water solution of xanthan gum under low stirring and mixed till homogeneous solution obtained. 6. Finally checked for quality parameter. Stability Data: Spinosad 10% + Abamectin 1.2% + Compound of formula I 14% SC Sr. Test Parameter Specification Observation Cold HST at No Test at 54 ˚C 14 0˚C days 7days 1 Description The material Complies Complies Complies shall be off- white colour homogenous viscous liquid, free from extraneous matte 2 Spinosad Content10% (+5,-5%)10.28 10.26 10.12(%w / w) 3 Abamectin Content 1.2% (+10,-5%)1.22 1.221.20 (% w / w)) 4 Compound of 14% (+5,-5%) 14.38 14.40 14.21 formula I Content (% w / w) 5 Suspensibility of Min 80% 97.27 97.64 96.78 Spinosad (% w / w) 6 Suspensibility of Min 80% 98.01 98.55 98.11 Abamectin (% w / w) 7 Suspensibility of Min 80% 96.56 96.25 95.38 Compound of formula I (% w / w) 8 pH 1.0% Aqueous 5.0 to 8.00 7.05 7.22 6.96 Solution9Viscosity @25°C 300 to700 487497486 Spindle 6360 rpm (CPS) 10Wet Sieve test 2.0 Max 0.15 0.17 0.12 (Retained on 45 micron) (% w / w) 11Persistent foam60 Max10 11 11after 1min (ml) Example 2. Spinosad 10% + Abamectin 1.2% + Compound of formula I 14% SE CHEMICAL COMPOSITION: Sr. Ingredients Concentration (%w / w) No. 1 Spinosad Technical 10 2 Abamectin Technical 1.2 Compound of formula I 3 14 Technical 4 Tristyryl Phenol Ethoxylate 4 Sodium Alkylnaphthalene 5 Sulfonate Formaldehyde 3 Condensate 6 Propylene glycol 5 7 Polyvinyl alcohol 1 8 1,2-benzisothiazolin-3-one 0.2 Polydimethylsiloxane 9 emulsion 0.1 10 Polymethylmethacrylate 2 11 Xanthan Gum 0,14 12 Distilled Water Q.S. Total 100.0 FORMULATION PROCESS: 1. The mixture of surfactants, emulsifier (Sodium Alkylnaphthalene Sulfonate Formaldehyde Condensate,Tristyryl Phenol Ethoxylate, Polymethylmethacrylate), Polydimethylsiloxane emulsion, Propylene glycol & Propylene Glycol (PG) were first diluted in required D.M.Water, and solubilized by high shear mixing. 2. To the above solution, then added Spinosad Technical, Abamectin Technical, and Compound of formula I Technical and mixed well to make the homogeneous mass. 3. The above mixed mass was grinded in bead Mill. Grinding was carried out until a mean particle size of below 5 microns was obtained. 4. Prepared 2% gum solution – Took 100 g DM water and added 0.2 g of 1,2- Benzisothiazolin-3-one, then under slow stirring added 2 g xanthan gum. 5. To the above grinded mass, added 2% water solution of xanthan gum under low stirring and mixed till homogeneous solution obtained. 6. Finally checked for quality parameter. Stability Data: Spinosad 10% + Abamectin 1.2% + Compound of formula I 14% SE Sr. Test Parameter Specification Observation Cold HST at No Test at 54 ˚C 14 0˚C days 7days 1 Description The material Complies Complies Complies shall be off- white colour homogenous viscous liquid, free from extraneous matte 2 Spinosad Content10% (+5,-5%)10.23 10.25 10.12(%w / w) 3 Abamectin Content 1.2% (+10,-5%)1.21 1.221.24 (% w / w))4Compound of 14% (+5,-5%) 14.26 14.41 14.22 formula I Content (% w / w) 5 Suspensibility of Min 80% 96.27 96.34 96.18 Spinosad (% w / w) 6 Suspensibility of Min 80% 97.15 94.36 94.28 Abamectin (% w / w) 7 Suspensibility of Min 80% 93.12 91.34 91.21 Compound of formula I (% w / w) 8 pH 1.0% Aqueous 5.0 to 8.00 6.53 6.62 5.96 Solution 9 Viscosity @25°C 300 to700 478443467 Spindle 6360 rpm (CPS) 10Wet Sieve test 2.0 Max 0.12 0.11 0.13 (Retained on 45 micron) (% w / w) 11Persistent foam60 Max20 25 30after 1min (ml) Example 3: Spinosad 10% + Abamectin 1.2% + Compound of formula I 14% WG CHEMICAL COMPOSITION: Sr. Ingredients Concentration No. 1 Spinosad Technical 10 2 Abamectin Technical 1.2 3 Compound of formula I Technical 14 Sodium Alkylnaphthalene Sulfonate 4 10.0 Formaldehyde Condensate 5 Di-isopropyl Napthalene sulphonate 5.0 6 Sodium Polycarboxylate 5.0 7 Silicone based antifoam 1.0 8 Polydimethylsiloxane emulsion 1.0 9 Starch 10.0 10 Lactose 10.0 11 China Clay Q.S. Total 100.0 FORMULATION PROCESS: In a ribbon blender, all RM's were charged and mixed well. The premix was air jet milled to achieve a particle size of less than 10 micron. To this milled material added D M Water and mixed well to form a dough. Extruded this dough through a basket extruder. Dried the wet extruded granules using Fluid bed drier (FBD). Sieved the granules to separate dust form granules. Stability Data: Spinosad 10% + Abamectin 1.2% + Compound of formula I 14% WG Sr. Test Parameter Specification Observation Cold HST at No Test at 54 ˚C 14 0˚C days 7days 1 Description The material Complies Complies Complies shall be off- white colour homogenous viscous liquid, free from extraneous matte 2 Spinosad Content 10% (+5,-5%) 10.19 10.21 10.14 (%w / w) 3 Abamectin 1.2% (+10,-5%) 1.25 1.21 1.20 Content (% w / w)) 4 Compound of 14% (+5,-5%) 14.24 14.54 14.21 formula I Content (% w / w) 5 Suspensibility of Min 80% 95.79 96.28 96.34 Spinosad (% w / w) 6 Suspensibility of Min 80% 97.05 95.36 94.88 Abamectin (% w / w) 7 Suspensibility of Min 80% 93.22 91.84 92.21 Compound of formula I (% w / w) 8 pH 1.0% Aqueous 5.0 to 8.00 6.43 6.12 6.16 Solution 9 Viscosity @25°C 300 to700 518 449 487 Spindle 6360 rpm (CPS) 10 Wet Sieve test 2.0 Max 0.13 0.11 0.14 (Retained on 45 micron) (% w / w) 11 Persistent foam 60 Max 21 22 29 after 1min (ml) Evaluation of synergistic effect of insecticidal composition of the present invention A synergistic effect of two or more products exists whenever the action of an active ingredient composition is greater than the sum of the actions of the individual components. Synergism was calculated by using Colby’s method (Weeds, vol.15 No.1 (Jan 1967), pp.20-2. The synergistic action expected for a given composition of two active components can be calculated as follows: XY E = (X + Y) – --------- 100 The synergistic action expected for a given composition of three active components can be calculated as follows: (XY+YZ+XZ) (XYZ) E = (X + Y + Z) – ----------------- + ------------ 100 10000 Where: E represents expected percentage of insecticidal control for the composition of the two or three actives ingredients at defined doses (for example equal to x, y and z, respectively). X is the percentage of insecticidal control observed by the compound (Spinosad) at a defined dose (equal to x). Y is the percentage of insecticidal control observed by the compound (Compound of formula I) at a defined dose (equal to y). Z is the percentage of insecticidal control observed by the compound (Abamectin) at a defined dose (equal to z). When the percentage of insecticidal control observed for the composition is greater than the expected percentage, there is a synergism effect. Observed control (%) Ratio = ----------------------------- Expected control (%) Ratio of O / E > 1, synergism observed The present invention is illustrated by way of examples, the examples are meant for illustrative purposes and should not be construed as limiting. Experiment for Synergistic activity of composition product of present invention: Example 1- Details of experiment on Chilli crop: Field experiment for synergistic activity of Spinosad, Compound of formula I and Abamectin for the control of Fruit borer and yellow mite pests on chilli crop was conducted. To evaluate the synergistic effect, Chilli crop was sown in 5 m x 5 m plots maintaining 45 cm x 45 cm plant distance with three replications and in Randomized Block Design (RBD). The treatments were applied as foliar application at the ETL level of insect population. Each active component was applied at recommended doses in different ternary and binary compositions. Solo compositions were also taken for comparison. The treatment details are as under: Sr. Treatments Formulation % No. T1Spinosad+ Compound of formula I + Abamectin 17.5% + 30% + 0.1% T2Spinosad+ Compound of formula I + Abamectin 10% + 14% + 1.2% T3Spinosad+ Compound of formula I + Abamectin 1% + 22.5% + 10% T4Spinosad+ Compound of formula I + Abamectin 26% + 0.1% + 5% T5Spinosad+ Compound of formula I 17.5% + 30% T6Spinosad+ Compound of formula I 10% + 14% T7Spinosad+ Compound of formula I 1% + 22.5% T8Spinosad+ Compound of formula I 26% + 0.1% T9Spinosad+ Abamectin 17.5% + 0.1% T10Spinosad+ Abamectin 10% + 1.2% T11Spinosad+ Abamectin 1%+ 10% T12Spinosad+ Abamectin 26% + 5% T13Compound of formula I + Abamectin 30% +0.1% T14Compound of formula I + Abamectin 14% + 1.2% T15Compound of formula I + Abamectin 22.5% + 10% T16Compound of formula I + Abamectin 0.1% + 5% T17Spinosad 17.5% T18Spinosad 10%T19Spinosad 1% T20Spinosad 26% T21Compound of formula I 30.0% T22Compound of formula I 14% T23Compound of formula I 22.5% T24Compound of formula I 0.1% T25Abamectin 0.1% T26Abamectin 1.2% T27Abamectin 10% T28Abamectin 5%T29Untreated check - The treatments T1 to T28 were used as foliar application whereas no treatment was done for T29 control treatment. Observations for Fruit borer (Helicoverpa armigera) and yellow mite (Polyphagotarsonemus latus) were recorded at Before spray, 7 and 15 days after sprays by observing 5 random plants per plot and based on number of larval population and reduction over control was calculated. The observations for yellow mite (Polyphagotarsonemus latus) were recorded at Before spray, 7 and 15 days after sprays was recorded on random 5 plants per 3 leaves (1 upper 1 middle and 1 lower leaves) per plant in each replication. Yellow mite per cent control was calculated over control. Based on the per cent reduction in larvae and yellow mite population the Expected control was calculated and compared with Observed control. The results of the trial have been presented here under in Table 1. Table 1: Synergistic effect of composition product of the present invention (Spinosad+ Compound of formula I + Abamectin) against Fruit borer and yellow mite in Chilli crop Colby Ratio Observed per Expected per (Observed% cent control cent control WC / Expecte Sr. Formulatio Treatments d % WC) No. n Yell Fruit Yellow Fruit Yellow Fruit ow borer Mite borer Mite borer Mite Spinosad+ Compound of 17.5% + T1 formula I + Abamectin 30% + 82.67 63.32 67.32 48.84 1.23 1.30 0.1% Spinosad+ Compound of 10% + 14% T2 86.33 88.13 66.63 60.59 1.30 1.45 formula I + Abamectin + 1.2% Spinosad+ Compound of 1% + T3 formula I + Abamectin 22.5% + 61.33 85.75 55.77 61.85 1.10 1.39 10% Spinosad+ Compound of 26% + T4 74.67 71.56 65.45 54.14 1.14 1.32 formula I + Abamectin 0.1% + 5% Spinosad+ Compound of 17.5% + 65.33 26.18 66.65 27.40 0.98 0.96 T5 formula I 30% Spinosad+ Compound of 10% + 14% 63.33 23.38 65.83 25.29 0.96 0.92 T6 formula I Spinosad+ Compound of 1% + 51.67 24.56 54.08 25.51 0.96 0.96 T7 formula I 22.5% Spinosad+ Compound of 26% + 63.00 10.72 64.38 12.03 0.98 0.89 T8 formula I 0.1% T9Spinosad+ Abamectin 17.5%+.1% 58.33 30.12 59.82 31.50 0.97 0.96 T10 Spinosad+ Abamectin 10%+1.2% 58.00 45.14 59.63 48.37 0.98 0.93 T11Spinosad+ Abamectin 1%+ 10% 44.67 47.12 46.06 49.43 0.97 0.95 T12 Spinosad+ Abamectin 26% + 5% 59.67 48.21 60.88 49.64 0.98 0.97 Compound of formula I 30% +0.1% 19.67 40.55 20.30 47.38 0.97 0.86 T13 + Abamectin Compound of formula I 14% + 17.67 55.27 19.26 59.74 0.92 0.93 T14 + Abamectin 1.2% Compound of formula I 22.5% + 18.33 59.58 21.01 61.36 0.87 0.97 T15 + Abamectin 10% Compound of formula I 0.1% + 5% 14.00 49.44 14.32 52.51 0.98 0.94 T16 + Abamectin T17 Spinosad 17.5% 59.00 2.78 - - - - T18Spinosad 10% 58.67 2.12 - - - - T19 Spinosad 1% 44.00 1.26 - - - - T20Spinosad 26% 59.67 3.42 - - - - T21 Compound of formula I 30.0% 18.67 25.32 - - - - T22Compound of formula I 14% 17.33 23.67 - - - - T23 Compound of formula I 22.5% 18.00 24.56 - - - - T24Compound of formula I 0.1% 11.67 8.92 - - - - T25 Abamectin 0.1% 2.00 29.54 - - - - T26Abamectin 1.2% 2.33 47.25 - - - - T27 Abamectin 10% 3.67 48.78 - - - - T28Abamectin 5% 3.00 47.86 - - - - T29 Untreated check - - - - - - It is clearly evident from the data shown in above Table 1 for per cent control fruit borer larval and yellow mite population in Chilli crop that the ternary composition of the present invention comprising Spinosad+ Compound of formula I + Abamectin T1 to T4 are synergistic for both Insect-pest control with > 1 Colby’s Ratio. All binary compositions and solo compositions are less effective of both insect-pest for control in comparison to ternary composition of present invention. Experiment for Bio-efficacy evaluation of composition product of present invention: For the ternary and binary composition based on Spinosad, Compound of formula I and Abamectin evaluation under field conditions, the basic test composition as Spinosad, Compound of formula I and Abamectin were manufactured specifically by the inventor. For ternary composition, Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC was used and for binary compositions, Spinosad 10% + Compound of formula I 14% SC, Spinosad 10% + Abamectin 1.2 % SC and Compound of formula I 14% + Abamectin 1.2 % SC and solo formulations of Spinosad 10% SC, Compound of formula I 14% SC and Abamectin 1.2 % SC were used. The market samples Spinosad 45 % SC, Compound of formula I 50% WP and Chlorantraniliprole 4.3% +Abamectin 1.7% SC were also used for comparison. Example 3: Evaluation of the composition product of the present invention on Chilli crop. The synergistic composition of the present invention Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC was evaluated on Chilli crop variety. The experiment plots are design in Randomized Block Design (RBD) with three replications maintaining a distance of 45 cm x 45 cm between plants and rows. The observations were recorded for the following objectives. Objectives: 1. Bio-efficacy evaluation against fruit borer on Chilli crop 2. Bio-efficacy evaluation against yellow mite on Chilli crop 3. Bio-efficacy evaluation based on per cent reduction in fruit borer larval population over control. 4. Bio-efficacy evaluation based on percent reduction in yellow mite population. 5. Bio-efficacy evaluation based on crop yield and percent increase over control. 6. Phytotoxicity evaluation on Chilli crop Treatment details: Sr. Treatments No. T1 Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC @ 562.5 ml / ha T2 Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC @ 750 ml / ha T3 Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC @ 937.5 ml / ha T4 Spinosad 10% + Compound of formula I 14% SC @ 562.5 ml / ha T5 Spinosad 10% + Compound of formula I 14% SC @ 750 ml / ha T6 Spinosad 10% + Compound of formula I 14% SC @ 937.5 ml / ha T7 Spinosad 10% + Abamectin 1.2 % SC @ 562.5 ml / ha T8 Spinosad 10% + Abamectin 1.2 % SC @ 750 ml / ha T9 Spinosad 10% + Abamectin 1.2 % SC @ 937.5 ml / ha T10 Compound of formula I 14% + Abamectin 1.2 % SC @ 562.5 ml / ha T11 Compound of formula I 14% + Abamectin 1.2 % SC @ 750 ml / ha T12 Compound of formula I 14% + Abamectin 1.2 % SC@ 937.5 ml / ha T13 Spinosad 10% SC @ 562.5 ml / ha T14 Compound of formula I 14% SC @ 750 ml / ha T15 Abamectin 1.2 % SC @ 937.5 ml / ha T16 Spinosad 45 % SC @ 160 ml / ha T17 Compound of formula I 50% WP @ 600 gm / ha T18 Chlorantraniliprole 4.3% +Abamectin 1.7% SC @ 625 ml / ha T19 Untreated control Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC @ 1500 ml / ha T20 (For phyto- toxicity only) Methodology: The treatments T1 to T18 and T20 were used as foliar application whereas no treatment was done for T19 untreated control plots. The treatments were applied as foliar application at the ETL level of insect population. Each active component was applied at three doses in different ternary and binary compositions. Solo compositions were also taken for comparison. Observations for Fruit borer (Helicoverpa armigera) and yellow mite (Polyphagotarsonemus latus) were recorded at before spray, 7 and 15 days after sprays by observing 5 random plants per plot and based on number of fruit borer larval population and reduction over control was calculated. The observations for yellow mite (Polyphagotarsonemus latus) were recorded at Before spray, 7 and 15 days after sprays was recorded on 5 plants per 3 leaves (1 upper 1 middle and lower leaf) per plant in each replication. Yellow mite per cent control was calculated over control. The green chilli yield was recorded at different picking as per harvest. The observations phytotoxicity to Chilli crop at 0, 3, 7, 10 & 15 days after spray were also recorded. Results are presented in Table 3, 4, 5.6 and 7. Results: Table 3: Field bio-efficacy evaluation of Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC against Fruit borer of chilli crop Sr. Treatments Dose a.i. Form Number of larval %ROC No (g / ha) ulatio population / plants (Reduction . n (ml over control) or Befor 7 15 7 15 g / ha) e DAS DAS DAS DAS spray Spinosad 10% + 56.25+ 562.5 Compound of formula I 78.75+ T1 1.07 0.52 0.21 74.00 90.16 14% + Abamectin 1.2 % 6.75 SC Spinosad 10% + 75 + 105 750 Compound of formula I + 9 T2 1.00 0.42 0.15 79.00 92.97 14% + Abamectin 1.2 % SC Spinosad 10% + 93.75+ 937.5 Compound of formula I 131.25+ T3 1.47 0.40 0.16 80.00 92.50 14% + Abamectin 1.2 % 11.25 SC Spinosad 10% + 56.25 + 562.5 T4 Compound of formula I 78.75 1.87 0.98 0.81 51.00 62.03 14% SC Spinosad 10% + 75 + 105 750 T5 Compound of formula I 1.53 0.87 0.75 56.50 64.84 14% SC Spinosad 10% + 93.75+ 937.5 Compound of formula I 131.25 1.87 0.81 0.72 59.50 66.25 14% SC Spinosad 10% + 56.25 + 562.5 1.60 0.87 0.73 56.67 65.62 Abamectin 1.2 % SC 6.75 Spinosad 10% + 75 + 9 750 1.13 0.80 0.67 60.00 68.75 Abamectin 1.2 % SC Spinosad 10% + 93.75+ 937.5 1.07 0.73 0.60 63.33 71.88 Abamectin 1.2 % SC 11.25 Compound of formula I 78.75+ 562.5 14% + Abamectin 1.2 % 6.75 1.73 1.27 1.27 36.67 40.62 SC Compound of formula I 105 + 9 750 14% + Abamectin 1.2 % 1.07 1.20 1.20 40.00 43.75 SC Compound of formula I 131.25+ 937.5 14% + Abamectin 1.2 % 11.25 1.73 1.13 1.13 43.33 46.87 SC Spinosad 10% SC 75 750 1.20 1.08 0.96 46.00 54.84 Compound of formula I 105 750 0.93 1.33 1.33 33.33 37.50 14% SC Abamectin 1.2 % SC 9 750 1.27 1.73 2.07 13.33 3.12 Spinosad 45% SC 73 160 2.00 1.33 1.01 33.50 52.66 Compound of formula I 300 600 1.53 1.40 1.20 30.00 43.75 50% WP Chlorantraniliprole 26.875 + 625 4.3% +Abamectin 1.7% 10.625 1.07 1.01 0.97 49.50 54.53 SC Untreated control - - 1.33 2.00 2.13 - - S Em ± 0.57 0.10 0.08 - - CD (P=0.05) NS 0.27 0.23 - - DAS – Days after spray Table 4: Field bio-efficacy evaluation of Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC against Yellow mite of chilli crop. Sr. Treatments A.I. Dose Form Number of %ROC No (g / ha) ulatio Mites / leaves (Reduction . n (ml over or control) g / ha) Befor 7 15 7 15 e DA DAS DAS DAS spray S Spinosad 10% + Compound of 56.25+ 562.5 7.02 1.0 0.73 88.2 92.6 T1 formula I 14% + Abamectin 1.2 78.75+ 6.75 7 4 8 % SC Spinosad 10% + Compound of 75 + 105 + 9 750 7.96 0.8 0.51 90.6 94.9 T2 formula I 14% + Abamectin 1.2 4 9 0 % SC Spinosad 10% + Compound of 93.75+ 937.5 7.44 0.7 0.42 91.6 95.7 T3 formula I 14% + Abamectin 1.2 131.25+ 6 7 9 % SC 11.25 Spinosad 10% + Compound of 56.25 + 562.5 8.91 4.4 4.71 50.4 52.9 T4 formula I 14% SC 78.75 9 9 9 Spinosad 10% + Compound of 75 + 105 750 7.18 4.3 4.56 52.2 54.5 T5 formula I 14% SC 3 1 5 Spinosad 10% + Compound of 93.75+ 937.5 6.38 4.1 4.38 54.1 56.3 T6 formula I 14% SC 131.25 6 7 2 Spinosad 10% + Abamectin 1.2 56.25 + 6.75 562.5 7.56 3.4 3.29 61.5 67.1 T7 % SC 9 2 8 Spinosad 10% + Abamectin 1.2 75 + 9 750 5.71 3.4 3.18 62.5 68.2 T8 % SC 0 0 9 Spinosad 10% + Abamectin 1.2 93.75+ 937.5 6.29 3.1 3.04 65.2 69.6 T9 % SC 11.25 6 0 2 T1 Compound of formula I 14% + 78.75+ 6.75 562.5 7.53 2.2 2.24 75.0 77.6 0 Abamectin 1.2 % SC 7 0 1 T1 Compound of formula I 14% + 105 + 9 750 6.58 2.0 2.18 77.2 78.2 1 Abamectin 1.2 % SC 7 1 7 T1 Compound of formula I 14% + 131.25+ 937.5 6.04 1.9 2.07 78.1 79.3 2 Abamectin 1.2 % SC 11.25 8 9 8 T1 Spinosad 10% SC 75 750 7.51 7.0 7.64 22.3 23.7 3 4 0 3 T1 Compound of formula I 14% 105 750 6.24 4.4 4.73 50.4 52.7 4 SC 9 9 7 T1 Abamectin 1.2 % SC 9 750 7.13 3.5 3.24 60.5 67.6 5 8 4 3 T1 Spinosad 45% SC 73 160 8.69 7.8 8.42 13.2 15.9 6 7 4 6 T1 Compound of formula I 50% 300 600 7.31 5.0 5.53 43.8 44.7 7 WP 9 7 9 T1 Chlorantraniliprole 4.3% 26.875 + 625 6.60 3.5 3.27 61.0 67.4 8 +Abamectin 1.7% SC 10.625 3 3 1 T1 Untreated control - - 6.78 9.0 10.0 - - 9 7 2 S Em ± 0.0 0.21 0.08 - - 9 CD (P=0.05) 0.2 NS 0.23 - - 5 DAS – Days after spray Table 5: Field bio-efficacy evaluation of Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC based on yield of chilli crop. Sr. Treatments A.I. Dose Form % Increase Chilli No (g / ha) ulatio against Yield . n (ml control or (kg / h g / ha) a) Spinosad 10% + Compound of 56.25+ 78.75+ 562.5 18225 43.19 formula I 14% + Abamectin 6.75 1.2 % SC Spinosad 10% + Compound of 75 + 105 + 9 750 19215 50.97 formula I 14% + Abamectin 1.2 % SC Spinosad 10% + Compound of 93.75+ 937.5 19287 51.53 formula I 14% + Abamectin 131.25+ 11.25 1.2 % SC Spinosad 10% + Compound of 56.25 + 78.75 562.5 15142 18.97 formula I 14% SC Spinosad 10% + Compound of 75 + 105 750 15323 20.39 formula I 14% SC Spinosad 10% + Compound of 93.75+ 131.25 937.5 15539 22.09 formula I 14% SC Spinosad 10% + Abamectin 56.25 + 6.75 562.5 16964 33.28 1.2 % SC Spinosad 10% + Abamectin 75 + 9 750 17057 34.01 1.2 % SC Spinosad 10% + Abamectin 93.75+ 11.25 937.5 17149 34.73 1.2 % SC Compound of formula I 14% 78.75+ 6.75 562.5 14789 16.19 + Abamectin 1.2 % SC Compound of formula I 14% 105 + 9 750 14897 17.04 + Abamectin 1.2 % SC Compound of formula I 14% 131.25+ 11.25 937.5 14950 17.46 + Abamectin 1.2 % SC Spinosad 10% SC 75 750 13497 6.04 Compound of formula I 14% 105 750 13384 5.15 SC T1 Abamectin 1.2 % SC 9 750 12818 0.71 5 T1 Spinosad 45% SC 73 160 13412 5.37 6 T1 Compound of formula I 50% 300 600 13496 6.03 7 WP T1 Chlorantraniliprole 4.3% 26.875 + 625 16790 31.91 8 +Abamectin 1.7% SC 10.625 T1 Untreated control - - 12728 - 9 S. Em. ± 331 - C.D at 5 % 998 - Table 6: Phytotoxicity evaluation of Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC on Chilli crop. Sr. Treatments A.I. Dose Formul Phytotoxicity No (g / ha) ation parameters . (ml or observed* g / ha) (mean data recorded at 0, 3, 5, 7, 10 and 15 days after application) L W N V E L Spinosad 10% + Compound of formula I 56.25+ 562.5 T1 0 0 0 0 0 0 14% + Abamectin 1.2 % SC 78.75+ 6.75 Spinosad 10% + Compound of formula I 75 + 105 + 9 750 T2 0 0 0 0 0 0 14% + Abamectin 1.2 % SC Spinosad 10% + Compound of formula I 93.75+ 937.5 T3 14% + Abamectin 1.2 % SC 131.25+ 0 0 0 0 0 0 11.25 Spinosad 10% + Compound of formula I 56.25 + 78.75 562.5 T4 0 0 0 0 0 0 14% SC Spinosad 10% + Compound of formula I 75 + 105 750 T5 0 0 0 0 0 0 14% SC Spinosad 10% + Compound of formula I 93.75+ 937.5 T6 0 0 0 0 0 0 14% SC 131.25 T7 Spinosad 10% + Abamectin 1.2 % SC 56.25 + 6.75 562.5 0 0 0 0 0 0 T8 Spinosad 10% + Abamectin 1.2 % SC 75 + 9 750 0 0 0 0 0 0 T9 Spinosad 10% + Abamectin 1.2 % SC 93.75+ 11.25 937.5 0 0 0 0 0 0 T1 Compound of formula I 14% + 78.75+ 6.75 562.5 0 0 0 0 0 0 0 Abamectin 1.2 % SC T1 Compound of formula I 14% + 105 + 9 750 0 0 0 0 0 0 1 Abamectin 1.2 % SC T1 Compound of formula I 14% + 131.25+ 937.5 0 0 0 0 0 0 2 Abamectin 1.2 % SC 11.25 T1 Spinosad 10% SC 75 750 0 0 0 0 0 0 3 T1 Compound of formula I 14% SC 105 750 0 0 0 0 0 0 4 T1 Abamectin 1.2 % SC 9 750 0 0 0 0 0 0 5 T1 Spinosad 45% SC 73 160 0 0 0 0 0 0 6 T1 Compound of formula I 50% WP 300 600 0 0 0 0 0 0 7 T1 Chlorantraniliprole 4.3% +Abamectin 26.875 + 625 0 0 0 0 0 0 8 1.7% SC 10.625 T1 Untreated control 0 0 0 0 0 0 9 Spinosad 10% + Compound of formula I 150 + 210 + 1500 T2 14% + Abamectin 1.2 % SC (For phyto- 18 0 0 0 0 0 0 0 toxicity only) L – Leaf injury on tips / surface, W – Wilting, N – Necrosis, V – Vein clearing, E – Epinasty, H – Hyponasty *Based on 0-10 scale where: 0=0%, 1=1-10%, 2=11-20%, 3=21-30%, 4=31-40%, 5=41- 50%, 6=51-60%, 7=61-70%, 8=71-80%, 9=81-90%,10=91-100% From the example, it can be clearly seen that the composition of the present invention is superior for controlling the Fruit borer (Helicoverpa armigera) at 7 and 15 days after spray (Table 3) and for controlling yellow mite (Polyphagotarsonemus latus) at 7 and 15 days after spray (Table 4) in Chilli crop as compared to the binary compositions and solo compositions at same dosage levels and other registered formulated products available in the market, Spinosad 45 % SC, Compound of formula I 50% WP and Chlorantraniliprole 4.3% +Abamectin 1.7% SC. The composition of present invention i.e. Spinosad 10% + Compound of formula I 14% + Abamectin 1.2 % SC @ 562 ml, 750 ml and 1500 ml / ha further showed no phytotoxicity in the Chilli crop even after 0, 3, 5, 7, 10 and 15 days after spray (Table 6). Through the insecticidal composition of present invention, the number of applications to control wide range of insect pests appearing at the same time is minimised. The composition of present invention is highly safe to the user and to the environment. The composition offers the user a single homogenous application eliminating the need for tank mix. The composition also is cost-effective as it provides much greater simultaneous control and can be used in a variety of crops with a broader spectrum of protection. In particular, it has now been found, surprisingly that, for example, the insecticidal activity of the composition of present invention, compared with the insecticidal activity of individual components, is synergistic. In fact, various advantageous properties associated with the compositions according to the invention, include but are not limited to: knock down effect on insect pests at all developmental stages, with no phytotoxicity and enhanced shelf life, stability of the composition. From the above investigations, it will be observed that numerous modifications and variations can be effectuated without departing from the true spirit and scope of the novel concepts of the present invention. It is to be understood that no limitations with respect to the specific embodiments illustrated is intended or should be inferred. It should be understood that all such modifications and improvements have been deleted herein for the sake of conciseness and readability but are properly within the scope of the following claims.

Claims

I CLAIM

1. . A stable synergistic insecticidal composition comprising: A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives; B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and C) Compound of Formula I i.e., N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives.

2. . The insecticidal composition as claimed in claim 1, comprising: A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by the weight of the composition; B) Abamectin or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by weight of the composition; and C) Compound of Formula I i.e., N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives, present in the range of 0.1 to 85% by weight of the composition.

3. . The insecticidal composition as claimed in claims 1 to 2, which further comprises one or more agrochemically acceptable excipients.

4. . The insecticidal composition as claimed in claim 3, wherein agrochemically acceptable excipients surfactant(s), dispersing agent(s), anti-freezing agent(s), emulsifier(s), anti-foaming agent / defoamer(s), wetting agent(s), biocide / antimicrobial / anti-bacterial agent(s), thickening agent / thickener(s), quick coating agent(s) or sticking agents / sticker(s), spreader(s), binder(s), pH-adjusting agent(s), anti-caking agent(s), adjuvant(s), filler(s) / suspension aid(s), colorant(s), carrier(s), buffering agent(s), rheology modifier(s), polymer(s), solvent(s), co-solvent(s) or a combination thereof.

5. . The composition as claimed in claim 4, wherein the surfactant(s) and / or dispersing agent and / or co-dispersant is / are selected from the group comprising polymeric anionic dispersant, polyarylphenyl ether phosphate, tristyryl phenol ethoxylate, Polymethyl methacrylate-polyethylene glycol graft copolymer, acrylate copolymer, acrylic graft copolymer, non-ionic proprietary surfactant, ethoxylated tristryl phenol Sulphate, alkyl naphthalene formaldehyde condensate ,naphthalene sulfonic acid, sodium salt condensate withformaldehyde, ethoxylated oleyl cetyl alcohol, polyalkelene glycol ether, ethoxylated fatty alcohol, Polymethyl methacrylate, Sodium polymethyl methacrylate, sodium polyacrylate, sodium lignosulphonate, calcium lignosulphonate, alkylphenol polyoxyethylene ether, sodium salt of alkyl or polyalkyl naphthalene sulfonate formaldehyde condensate, polycarboxylate or sodium salt of polycarboxylate, fatty alcohol polyoxyethylene ether, alcohol polyglycol ether or mixtures thereof and present in the range of 0.1-20% by weight of the composition.

6. . The insecticidal composition as claimed in claim 4, wherein the wetting agent is / are selected form the group comprising tristyrylphenol ethoxylate non-ionic emulsifier, mixture of non-ionic surfactants, alkoxylated alcohol, block copolymer, alcohol polyglycol ether, alkyl olefin sulphates, dioctyl sulpho succinate, alkyl naphthalene sulphate ,Di-isopropyl Napthalene sulphonate, Polyalkoxy ethers, alkyl phenol ethoxylates, tri-styrenated phenol ethoxylate, EO / PO block co-polymers, butyl polyalkylene oxide block copolymer, sodium lauryl sulphate, sodium ligno sulphates or mixtures thereof and present in the range of 0.1-20% by weight of the total composition.

7. . The insecticidal composition as claimed in claim 4, wherein the defoamer or antifoaming agent is / are selected from the group comprising silicon emulsion based anti-foam agents, Siloxane polyalkyleneoxide, Polydimethylsiloxane, trisiloxane ethoxylates, silicone oil, silicone compound, C10～C20 saturated fat acid compounds or C8～C10 aliphatic alcohols compound, vegetable oil based antifoam, tallow based fatty acids, polyalkyleneoxide polydimethylsiloxane emulsion and mixtures thereof and present in the range of 0.01-5.0 % by weight of the composition.

8. . The insecticidal composition as claimed in claim 4, wherein the anti-freezing agent is / are selected from the group comprising glycol, propylene glycol, polyvinyl alcohol, mono ethylene glycol, glycerine, diethylene glycol, sorbitol, urea, mannitol, polyethylene glycol or mixtures thereof and present in the range of 1.0-20% by weight of the composition.

9. The insecticidal composition as claimed in claim 4, wherein the filler is / are selected from the group comprising silicon dioxide, china-clay, kaolin, starch, bentonite, precipitated silica, fumed silica, talcum powder, lactose, ammonium sulphate, water, sodium Sulphate,magnesium sulphate, sodium citrate, sodium chloride, potassium chloride and mixtures thereof and present in the range of 5-60 % by weight of the composition.

10. The insecticidal composition as claimed in claim 4, wherein the anti-caking agent is / are selected from the group comprising of group of talc, hydrous magnesium silicate, magnesium carbonate, calcium carbonate, precipitate silica, hydrophobic fumed silica and mixtures thereof and present in the range of 2.0-10% by weight of the composition.

11. The insecticidal composition as claimed in claim 4, wherein the carrier is / are selected from the group consisting of silicon dioxide, china clay, kaolin, starch, bentonite, precipitated silica, fumed silica, talcum powder, lactose, ammonium sulpha or mixture there of present in the range of 1.0-45 % by weight of the composition.

12. . The insecticidal composition as claimed in claim 4, wherein the biocide or anti- microbial agent is / are selected from 1, 2,- Benzisothiazolin -3-one, blends of 1,2,- benzisothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, 5-chloro-2-methyl-4-isothiazolin- 3-one, blends of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one, zinc 1-hydroxy-2(1H)-pyridinethione, blends of zinc l-hydroxy-2(1H)-pyridinethione and zinc oxide, and 2-n-octyl-4- isothiazolin-3-one or mixture thereof and present in the range of 0.01 to 10 % by weight of the composition.

13. . The insecticidal composition as claimed in claim 4, wherein the rheology modifier or thickeners or thickening agents is / are selected from polysaccharides, carboxymethyl cellulose, bentonite clay, aluminium magnesium silicate, hydroxy propyl cellulose, xanthan gum, gum arabic, gaur gum, carbomer, chitosan, precipitated silica or mixtures thereof and present in the range of 0.01-2.5 % by weight of the composition.

14. . The insecticidal composition as claimed in claim 4, wherein the emulsifier(s) is / are selected from group consisting of araliphatic or aliphatic non-ionic emulsifier such as ethoxylated mono-, di- and trialkylphenols, ethoxylates of long-chain alcohols and polyethylene oxide / polypropylene oxide homo- and copolymers, EO / PO block copolymers, polymeric emulsifier, Ethoxylates of long-chain alkanols, Ethoxylated Tristyrylphenol, Castor oil ethoxylate, ethoxylated monoalkylphenol, ethoxilates of cetyl alcohol and / or stearylalcohol; Tristyrylphenol ethoxylate,and Anionic emulsifier such as alkali metal and ammonium salts of alkyl sulfates, of hemisulfates of ethoxylated alkanols and ethoxylated alkylphenols, alkylsulfonic acids, bis(phenylsulfonic acid) ethers and their alkali metal or ammonium salts, sodiumlaurylsulfate, sodium (cetyl / stearyl) sulfate or mixture thereof and present in the range of 0.01 -20 % by weight of the composition.

15. . The insecticidal composition as claimed in claim 4 wherein the solvent(s) and co-solvent are selected from polar and non-polar solvent from the group comprising heavy aromatic hydrocarbon, N methyl pyrollidone (NMP) , Solvent Naphtha (Solvent C-9), Di methyl sulfoxide (DMSO), Dimethylformamide (DMF), N- alcohol, 2-ethyl hexanol , alkyl amide, vegetable oil, mineral oil, distilled water, aromatic solvents, water or mixtures thereof and present in the range of 1.0 to 20.0 % by weight of the composition.

18. . The insecticidal composition as claimed in claim 4, wherein the polymer(s) is / are selected from isocyanate, polyisocyanate used is toluene-2, 4-diisocyanate (TDI), diethylenetriamine (DETA),ethylene diamine (EDA), triethylenetetramine (TETA), and / or hexamethylene diamine (HMDA), diethanolglycine sodium salt, ethanoldiglycine disodium salt, hydroxymonocarboxylic acid compounds, hydroxydicarboxylic acid compounds, tetrasodium N,N-bis(carboxylatomethyl)-L-glutamate (GLDA), methylene diisocyanate (MDI), and / or low molecular weight polydiisocynates present in the range of 0.01- 5.0 % by weight of the composition.

19. . The insecticidal composition as claimed in claim 1 to 18, wherein the use of said composition promotes plant health, growth and thus increases plant yield in the field.

20. . The insecticidal composition as claimed in any one of the claims 1 to 19, wherein the composition is in form of Capsule suspension (CS), Dispersible concentrate (DC), Dustable powder (DP), Powder for dry seed treatment (DS), Emulsifiable concentrate (EC), Emulsifiable granule (EG), Emulsion water-in-oil (EO), Emulsifiable powder (EP), Emulsion for seed treatment (ES), Emulsion oil-in-water (EW), Flowable concentrate for seed treatment (FS), Granules (GR), Micro-emulsion (ME), Oil-dispersion (OD), Oil miscible flowable concentrate (OF), Oil miscible liquid (OL), Oil dispersible powder (OP), Suspension concentrate (SC), Suspension concentrate for direct application (SD), Suspo-emulsion (SE), Water soluble granule (SG), Soluble concentrate (SL), Spreading oil (SO), Water soluble powder (SP), Watersoluble tablet (ST), Ultra-low volume (ULV) suspension, Tablet (TB), Ultra-low volume (ULV) liquid, Water dispersible granules (WG), Wettable powder (WP), Water dispersible powder for slurry seed treatment (WS), Water dispersible tablet (WT), a mixed composition of CS and SC (ZC) or a mixed composition of CS and SE (ZE) or a mixed composition of CS and EW (ZW).

21. A kit-of-parts comprising a plurality of components, wherein said plurality of components comprises: A) Spinosad insecticide or its agrochemically acceptable salts, esters or its derivatives; B) Abamectin or its agrochemically acceptable salts, esters or its derivatives; and C) Compound of Formula I i.e., N-[2,6-bis(1-methylethyl)-4-phenoxyphenyl]-N′-(1,1- dimethylethyl) thiourea or its agrochemically acceptable salts, esters or its derivatives.

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