93 results about "Mythimna separata" patented technology

The invention relates to a method for controlling eastern mythimna separata injurious insects. The method comprises the step as follows: the eastern mythimna separata injurious insects contact Cry1A protein. The eastern mythimna separata injurious insects are controlled by producing the Cry1A protein capable of killing the eastern mythimna separate inside a plant body. Compared with an agricultural prevention method, a chemical prevention method and a physical prevention method used in the prior art, the whole growth period and whole plant protection is carried out on the plant, so as to prevent the damage of the eastern mythimna separata injurious insects. The method is free of pollution, free of residue, stable and thorough in effect, simple, convenient and economical.

The present invention discloses a broad spectrum pesticide extracted by using plant composition as raw material and its preparation method. Said plant composition is made from celastrus angulatus, melia azedarach, melia toosendan, acorus calamus, euphorbia fischeriana, aconitum cermichaeli and zanthoxylum armatum, and their extracts include water extract, acid extract, ether extract and alcohol extract, etc. Said invention can effectively kill several pests of grasshopper, red spider, armycworm, pine moth and others. Said extration liquor is acetic acid perfectly, and its extraction temp. is 45-60 deg.C.

The invention relates to novel hydrazide derivatives as well as a preparation method and application thereof. The novel hydrazide derivatives have a general formula as shown in the specification, wherein each group is as shown in the claim 1. The novel hydrazide derivatives provided by the invention are improved in insecticidal activity while the previous compound lipid solubility thereof is improved; the derivatives have excellent insecticidal activity; instantly after the derivatives are applied, insects can lose control on muscle and stop eating, and are obviously shrank and paralyzed; at last, the insects can be caused to die, and in the meantime, abnormal ecdysis of insects also can be induced; the novel hydrazide derivatives are very effective especially for lepidoptera pests such as mythimna separata, plutella xylostella and asparagus caterpillar, and thus are pesticides having wide application prospect.

The invention discloses an artificial large-scale armyworm culture method. The method comprises the steps of A, egg mass collection and larva hatch, B, 1-3 age larva feeding, C, 3-5 age larva feeding,D, 5-6 age larva feeding, E, pupation and pupa feeding and F, adult eclosion, mating and spawning. An inventor has been committed to research on the biological nature, predatory function and artificial feeding of natural enemy insects for a long time, under the weather of heavy rain, high humidity and insufficient illumination in Suiyang County of Guizhou province, large-scale armyworm feeding isachieved, the yearly yield reaches 20 million or above, Arma chinensis and Picromerus lewisi Scott in Suiyang County are fed with armyworms, and the Arma chinensis yield reaches one million or aboveand Picromerus lewisi Scott yield reaches 400 thousand or above; the achievement of the natural enemy insects is guaranteed.

The invention relates to the field of disease and pest control, and provides a green and safe disease and pest control method. Staging control is carried out according to different growth periods of plants. The specific control sequences and steps are as follows: (1), disease and pest control in the early stage comprises: control on damping-off, sheath blight and stubby root nematode before soil is not cultivated, and control on pests having relatively high mobility or needing adults to lay eggs and hatch, such as locusts, armyworms and moths, before plants are planted; (2), disease and pest control in seedling raising and seedling stages comprises: selection and use of disease-resistant varieties and health seedlings, disinfection of seeds and substrates, and control on whiteflies, flea beetles and cutworms in the seedling stage; and (3), disease and pest control in field planting and after field planting comprises: environmental management, water and fertilizer management, and adoption of different botanical fungicides and methods for different diseases and pests. Besides, the invention specifically discloses specific disease and pest control methods of Chinese cabbages, tomatoes, strawberries and hami melons. The green and safe disease and pest control method in the invention has the benefits that: a disease and pest control system is formed; and the method is wide in application range, good in effect and free from pesticide residue.

The invention provides an artificial breeding production method of trichogramma japonicum. The method is high in production efficiency, short in breeding cycle and beneficial to large-scale production of the richogramma japonicum. The method comprises the following steps that 1, sticky eggs are produced; 2, the sticky eggs are dissolved into single particles from an oviposition medium with a neutral protease solution with the concentration being 0.2%-0.5% (g/ml); 3, the sticky eggs treated in the step 2 are used for breeding the trichogramma japonicum. According to the method, the trichogramma japonicum bred artificially is used for preventing and treating agricultural insects, and the agricultural insects mainly comprise rice-stem borer, tryporyza incertulas and rice leaf folder. Compared with the prior art, the method has the advantages that armyworms are simple in source and easy and convenient to breed; the method is high in production efficiency and short in breeding period, large-scale breeding is convenient, and large-scale production of the trichogramma japonicum is promoted.

The invention relates to a nitrogen (sulfur) containing bridge ring compound with insecticidal activity, a preparation method and an application. Specifically, the invention discloses a compound with a general formula I or an optical isomer, a cis-trans-isomer or an agricultural pharmacology acceptable salt of the compound, and a preparation method thereof, wherein R1, R2, R3, R4, R5, R6, R, m, X and Z are respectively as defined in the specification. The invention also discloses an agricultural composition comprising the above compound and an application thereof. The above compound has high insecticidal activity for homoptera and lepidoptera agriculture and forestry insects, such as aphids, plant hoppers, whiteflies, cotton bollworms, prodenia litura, armyworm, etc. The general formula 1 is shown in the specification.

The invention discloses an alpha-amino phosphonate compound with a 2-amino-1, 3, 4-thiadiazole structure and a preparation method and application of alpha-amino phosphonate compound. The alpha-amino phosphonate compound has the sterilizing effect of alpha-amino phosphonate compounds and has a pesticide effect by introducing the 2-amino-1, 3, 4-thiadiazole group, and the alpha-amino phosphonate compound is wide in application range and good in sterilizing and pesticide effect by combining the alpha-amino phosphonate compound with the 2-amino-1, 3, 4-thiadiazole group. The preparation method is few in step, simple to operate, high in yield and productivity, capable of saving a large amount of time and cost in actual production and good in economic benefit. The 2-amino-1, 3, 4-thiadiazole has an inhibition effect on the growth and proliferation of alternaria solani and on the growth of mythimna separata and can be used as the pesticide intermediate to apply to the preparation of different agricultural fungicide.

The present invention relates to an oxadiazole compound and a preparation method thereof, wherein the molecular formula of the compound is as the follow, R1 is halogen, hydrogen, C1-C4 alkyl or alkoxy, R2 is halogen, hydrogen or alkyl, and R3 is methylamine, dimethylamine, isopropylamine, propylamine, butylamine, morpholine, piperidine or imidazole. Compared with the oxadiazole compound and the preparation method in the prior art, the oxadiazole compound and the preparation method of the present invention have the following characteristics that: the process is simple, the application range is wide, and the oxadiazole compound is suitable for prevention and control of health pests such as flies, mosquitoes, fleas and the like and agricultural pests such as lissorhoptrus oryzophilus, spodoptera exigua hiibner, mythimna separata (walker) and the like, can be provided for inhibiting growth of insects, especially mosquito larvae, and is an insecticide with an application prospect.

The invention provides Bt proteins with pesticidal activity against mythimna separata, and an application thereof. The protein is sourced from bacillus thuringiensis, and is at least one selected from Cry1Ab protein, Cry1Bb protein, Cry1Be protein, Cry2Ab protein, Cry9Aa protein, Cry9Eb protein and Cry9Ee protein. The Bt proteins with high toxicity against mythimna separata assist in filling the lack of mythimna separata controlling resources in the current market. Also, the above proteins provide a novel gene source for the preparation of anti-mythimna separata transgenic crops. The proteins can be used in controlling pest drug resistance against Cry1A products, and in delaying the resistance.

The invention discloses a pyrethroid compound having a structure represented by general formula (I). The invention also discloses a preparation method of the compound, and uses of the compound. The method comprises the following steps: utilizing a chiral adjuvant induced asymmetric syntheses technology to construct a novel pyrethroid key intermediate chiral carboxylic acid, and condensing the chiral carboxylic acid with active molecules comprising plant essential oil micromolecules, substituted cyanohydrin, fluorine-containing benzyl alcohol and the like to obtain the novel pyrethroid compound. The pyrethroid compound is used for preparing pesticides or pesticide active components for killing important agricultural pests comprising cotton bollworms, diamondback moths, aphids, beet armyworms, armyworms and the like, and healthy pests comprising houseflies, Culex pipiens pallens and the like, and can be widely used for the comprehensive control of crop pests.

The invention discloses a sex attractant for controlling mythimna separata and application thereof. A medicinal component of the sex attractant for controlling the mythimna separata comprises cis-11-hexadecenal and cis-11-hexadecene acetate according to a weight ratio of 96:4, and further comprises cis-9-hexadecenal, wherein the weight ratio of components of the cis-11-hexadecenal, the cis-11-hexadecene acetate and the cis-9-hexadecenal in the medicinal component is 96:4:(0.5-5). The sex attractant can be applied to dynamic monitoring and control of a mythimna separata population; by such a monitoring method, the nature of a migratory insect source can be clearly determined; the monitoring method has the superiority that cannot be achieved by other monitoring methods; during application tothe control, the using amount of a chemical pesticide can be saved, natural enemies are not killed, the environment is not polluted, the ecological balance is not destroyed, and promotion of sustainable control of the mythimna separata in China is facilitated.

The invention relates to an insecticidal composition containing spinetoram and cyantraniliprole. The insecticidal composition is formed by compounding active ingredients including spinetoram and cyantraniliprole in a binary manner, wherein the mass ratio of the spinetoram to the cyantraniliprole is (1:40):(40-1), the total mass of the active ingredients including the spinetoram and the cyantraniliprole in a preparation accounts for 1%-80%, the residual is auxiliary components which are allowable and acceptable in an insecticide, and the insecticidal composition can be prepared into forms such as emulsifiable solution, suspending agent, wettable powder, water dispersible granule, emulsion in water and microemulsion. The insecticidal composition is effective to lepidoptera, diptera, coleopteran, hemiptera, thysanoptera and homoptera insects such as tobacco bud worms, cotton aphid, tetranychus urticae, beet mythimna separata, cabbage looper, sweetpotato whitefly, leaf rollers, cotton bollworms and the like.

The invention discloses a high-efficiency attractant for mythimna lorgi and an application of the high-efficiency attractant. The high-efficiency attractant for the mythimna lorgi is prepared from thefollowing components in percentage by mass: 50 to 90 percent of cis-9-tetradecenyl acetate and 10 to 50 percent of cis-7-dodecenyl acetate. The high-efficiency attractant can trap and kill male mythimna lorgi more effectively, reduces the interspecific reproduction rate, is small in dosage and environmentally friendly, can be accurately applied to insect condition forecasting, mass trapping and mating interference, and has important significance in comprehensive treatment on the mythimna lorgi.

The invention provides a pinellia ternata extract containing plant pesticide special for corns in saline and alkaline land and a preparation method thereof. The pesticide is prepared from, by mass, 13-20 parts of profenofos, 1-4 parts of pinellia ternata, 0.7-2.5 parts of narrow-leaf mohonia fortunei extract, 1.2-2.5 parts of diethofencarb, 0.5-1.6 parts of scopolamine, 0.7-2.5 parts of copper sulfate, 3-7 parts of an emulsifier, 5-10 parts of an activating agent and 16-23 parts of an organic solvent. The invention further provides application of the pesticide in saline-alkali land for corn planting. The pinellia ternata extract containing plant pesticide has the advantages that the prepared pesticide has the effect of preventing and controlling pests in the corn planting land and has the remarkably preventing effect on common pests in the corn planting land, such as European corn borers, mythimna separata, aphids, corn leaf mites and cotton bollworm. The prepared pesticide has the same preventing and controlling effect on corn plant diseases while preventing and controlling the pests in the corn planting land.

The invention relates to a pueraria peduncularis extract and osthole insecticidal composition for preventing agricultural pests, the weight ratio of active components of pueraria peduncularis extract to osthole in the insecticidal composition is 1:3 to 3:1, and further the insecticidal composition is prepared into microemulsion. Compared with a single agent, the insecticidal composition has the advantages of broad insecticidal spectrum and synergistic effect, can effectively reduce use cost, reduces pest resistance to insecticides, and can effectively prevent the diamondback moth, cabbage caterpillar, corn armyworm, tea geometrid, empoasca flavescens and other agricultural pests.

The invention discloses a Cephalotaxus sinensis Li. insecticide and its preparation method. The Cephalotaxus sinensis Li. insecticide is made by taking a Cephalotaxus sinensis Li. extract as a main component and adding additives. The preparation can be in the form of wettable powder and a microemulsion, and is mainly used for the prevention and treatment of Mythimna separata and Plutella xylostella. The Cephalotaxus sinensis Li. Insecticide provided in the invention not only good insecticidal effects, but is also safe to the environment, human, livestock, natural enemies of pests and other beneficial organisms, and pests do not produce resistance to the insecticide. With a simple preparation process and a low cost, the Cephalotaxus sinensis Li. insecticide is suitable for the popularization and application.