718 results about "Whitefly" patented technology

The invention discloses a pesticide composition and application thereof in agriculture. The composition comprises the effective components of screw worm ethyl and anabasine class pesticide, wherein the mass ratio of the screw worm ethyl and the anabasine class pesticide is 60:1-1:80. The composition has a synergistic action, is especially obvious to resist pests, also can lower the application quantity and delay the generation and development of resistibility. The composition can be used for preventing and treating various pests in agriculture and is especially suitable for preventing and treating resistant pests with sucking mouth parts, such as plant hoppers, aphides, whiteflies, leafhoppers and the like.

The invention discloses a pale yellow Encarsia chalcid artificial propagation production method, comprising the following steps: collection and propagation of the pale yellow Encarsia chalcid species; host production; whitefly inoculation reproduction and development; inoculation and breeding of chalcid; drone cultivation; chalcid and whitefly separation; pupae collection; card making; and breeder selection. The proposal of the invention helps to improve the superior bee species selection, propagation and release, and realizes the high-quality, high-efficiency and high-scale reproduction of pale yellow Encarsia chalcid; moreover, the method is suitable for large-scale production and is applied to the technical field of agricultural pest biological control to prevent and control the greenhouse whitefly and other agricultural pests to meet production needs.

The invention discloses an isaria fumosorosea oil suspending agent and a preparation method as well as application thereof. The oil suspending agent is prepared from the following components in mass percent: 1-40% of isaria fumosorosea spore suspension, 1-20% of vegetable oil, 3-8% of emulsifying agent, 0.1-5% of dispersing agent, 1-5% of stabilizing agent, 1-5% of anti-freezing agent and the balance of inert mineral oil or aromatic hydrocarbon solvent. The spore of the isaria fumosorosea oil suspending agent disclosed by the invention has long survival time, and the germination rate of the spore which is stored for 2 years is 80%; the isaria fumosorosea oil suspending agent has good ageing stability and is safe to crops and environments; and the isaria fumosorosea oil suspending agent is mainly used for pest control of crops including fruit trees, vegetables, wheat, rice, flowers and the like, and especially has an obvious effect on controlling myzus persicae, whiteflies, cabbage caterpillars, cabbage moths and the like.

The invention discloses a cyantraniliprole containing insecticidal composition, which is an insecticidal composition containing active ingredients A and B, wherein the active ingredient A is cyantraniliprole, the active ingredient B is any one of the following pesticides: imidacloprid, acetamiprid, nitenpyram, thiamethoxam, thiacloprid, clothianidin and dinotefuran, and the weight ratio of the active ingredients A and B is 1:60-60:1. The composition disclosed by the invention can control various insects, has an obvious synergistic effect, expands the insecticidal spectrum, and has high activities to piercing-sucking pests such as plant hoppers, aphid, tea lesser leafhopper and aleyrodid, and lepidoptera pests such as plutella xylostella and asparagus caterpillar; the application amount of pesticides is reduced, the residues of pesticides on crops are reduced, and the environment pollution is reduced; and the composition is safe to people and livestock and good in environmental compatibility, and pests are unlikely to produce pesticide resistance.

The invention discloses a scale breeding method for encarsia formosa. The scale breeding method is finished in four greenhouses, namely a host plant cultivating room, a worm species room, an encarsia formosa species room and a breeding room, by steps. The scale breeding method comprises a host plant cultivating and managing step, a whitefly species managing step, a whitefly inoculating step, a whitefly nymph breeding step, an encarsia formosa species managing step, an encarsia formosa inoculating step, an encarsia formosa pupa breeding step, a pupa collecting step, a worm card or encarsia formosa box manufacturing and storing step and a whitefly controlling step. The scale breeding method has the advantages that process steps are continuously circulated and the encarsia formosa can be annually produced and bred. The scale breeding method is suitable for industrial scale production and reproduction of the encarsia formosa and is short in reproduction period, high in efficiency, low in energy consumption and low in cost. The obtained adult encarsia formosa, encarsia formosa pupa card or encarsia formosa box products are good in quality. The problem of insufficient supply for control over bemisia tabaci and trialeurodes vaporariorum in agriculture and forestry is solved.

The invention discloses a pesticidal composition comprising the active components including spirotetramat and (B) which is any one of abamectin or emamectin benzoate. The mass ratio of the spirotetramat to B is 100:1-1:40. By combining the spirotetramat and the abamectin or the emamectin benzoate, the composition has obvious synergistic effect and is conductive to retarding or overcoming the drugresistance of pests. The composition of the invention can be used for controlling diverse pests on agricultural crops and is especially suitable for controlling the pests such as aphids, whiteflies, thrips, plant lice and the like.

An active insecticide for preventing and eliminating the agricultural pests, such as thrips, aphis, aleyrodid, leafhopper, plant hopper, rice borer, etc, is proportionally prepared from pymetrozine and other active components chosen from pyriproxyfen, methylamino abamectin benzoate and buprofezin.

The invention discloses a method for artificial feeding of tobacco whiteflies, which belongs to the technical field of insect feeding. The method provides a feed formula for the artificial feeding of the tobacco whiteflies and a method for feeding by applying the feed, and the method comprises the steps of the acquisition and disinfection of tobacco whitefly eggs, the preparation of an artificial all-nutrition feed liquid, the preparation of a feeding container, the feeding and so on. The method has the advantages that the method realizes the aim of the indoor artificial feeding of the tobacco whiteflies all the year around, can obtain various instar insects with relatively consistent biological type, instar stage, state and so on, overcome the defect that easy influence by different host plants, biological types, growth states, instar stages and so on, caused by acquiring insect sources from natural birthplaces leads to the defect that the difference exists in experimental results, and ensure the standardization of test insects for experiments. The method can be used for experimental research on biological characteristics and a high-efficiency prevention and control technology of the tobacco whiteflies.

The invention discloses a paecilomyces fumosoroseus strain. The strain is a wild strain separated from bemisia tabaci body in Guangzhou area, which is naturally infected by worm living fungus. The wild strain is re-planted on the bemisia tabaci body for the rejuvenation, so that the paecilomyces fumosoroseus strain is obtained; the purified strain is obtained through single spore isolation. The paecilomyces fumosoroseus strain is PF01-N10; the preservation number of the strain is CCTCC No: M207088; the strain is stored in China Center for Type Culture Collection on 27 June, 2007. Through a long term of infectious biology research and the indoor biology testing, the paecilomyces fumosoroseus has strong infectious and killing effects for a plurality of sucking mouth parts insects, such as the white fly and the cotton worm etc, and the chewing mouth parts.

The invention discloses the artificial propagation method for Encarsia Formosa which comprises the steps of, (1) gathering and breeding Encarsia Formosa bee strains, (2) producing host, (3) receiving bees, (4) gathering. The invention realizes high grade, highly effectiveness and mass production.

The present invention provides a technological process for large-scale breeding bernisia tabaci genn by using tobacco and industrial production of eretmocerus spp. by using nymph of bernisia tabaci genn. Said invention adopts four-chamber eretmocerus spp. breeding method, mechanical collection, separation and purification, low-temp. short-period storage and annual industrial breeding eretmocerus spp. The host plant is tobacco leaf, it can bear lots of bernisia tabaci genn, and is high in production efficiency and is favorable for collection, the bernisia tabaci genn can be used as host of eretmocerus spp, so as to ensure controlling effect in field.

The invention discloses a method for automatically counting the density of Bemisia tabaci adults. The method comprises the following: a step (1) of measuring the distance, which is to measure the distance between an imaging device and an imaging object; a step (2) of acquiring images, which is to acquire images including the Bemisia tabaci adults by means of the imaging device; a step (3) of recognizing the Bemisia tabaci in the acquired images and automatically counting the Bemisia tabaci; a step (4) of computing the area of hostplant leaves; and a step (5) of obtaining the number of the Bemisia tabaci adults in unit area of hostplant leaves , namely the density of the Bemisia tabaci adults, according to the results of the step (3) and the step (4). The method for automatically counting the density of Bemisia tabaci adults can automatically, rapidly, and accurately recognize and count the Bemisia tabaci adults in complex situations in fields.

The invention discloses a paecilomyces lilacinus strain and its culture method and use. The paecilomyces lilacinus strain is paecilomyces lilacinus CPLI0708, is preserved in the China general microbiological culture collection center (CGMCC) and has an accession number of CGMCC No.8450. The culture method of the paecilomyces lilacinus strain comprises the following steps of A, bacterial strain activation: carrying out bacterial strain streak cultivation activation on a PDA inclined plane, B, bacterial strain liquid fermentation culture: transferring the activated bacterial strain into a triangular flask with a liquid medium and carrying out shaking culture, and C, bacterial strain solid fermentation culture: mixing a carrier, a nutrition matrix and water according to a volume ratio to form a uniform mixture which is a solid fermentation medium, putting the solid fermentation medium into a fresh-keeping bag, inoculating the solid fermentation medium with a liquid fermentation seed, carrying out stirring to obtain a uniform mixture and carrying out culture. The bacterial strain conidiospore has strong effects of killing sucking-type insects such as greenhouse aphids and whitefly and the fermentation broth has strong effects of killing larvas of soybean cyst nematode and can be used for pollution-free vegetable production.

The invention belongs to the technical field of pesticide, specifically relates to an insecticidal composition with pymetrozine comprising effective ingredients of pymetrozine and abamectin with weight% of 1-80 : 0.1-20. The inventive composition is added with normal adjuvants and excipients, except for the effective ingredients of pymetrozine and abamectin, to prepare as suspending agent, wettable powder, water dispersible granule for the control of bemisia tabaci, aphid, whitefly, leafhopper, rice fulgorid in the cotton, rice, vegetables and fruit trees, with obvious synergy, and increased insecticidal spectrum of pesticide. The effect of the present invention is obviously higher than that of the single agent thereof.

The invention relates to a medicine which is characterized by high efficiency, low toxicity, no public nuisance, no pollution, no toxicity or side effects, a broad antibacterial and pest-killing spectrum and long medicine efficacy for scab, powdery mildew, canker and other diseases caused by fungi, viruses and bacteria for vegetables, fruits, medicinal materials, flowers, teas and the like, as well as whitefly (small white mothes), bemisia tabaci, spider mites, fruit borer, aphids, leaf roller and other pests.

A pesticidal composition in the field of composite pesticides is disclosed in the invention. The effective components of the pesticidal composition comprise sulfoxaflor and amide pesticides, wherein, the weight ratio of sulfoxaflor to amide pesticides is 1-80:80-1, preferred 1-45:35-1. The total content of the effective components accounts for 1-90wt% of the pesticidal composition, preferred 1-50%, and the rest are auxiliary components which are allowed and accepted in pesticides. The pesticidal composition can be prepared into dosage forms, such as missible oil, suspending agent, wettable powder, water dispersible granule, emulsion in water and micron emulsion by known methods, and has substantial effects on controlling Lepidopterous pests such as diamondback moth, beet armyworm, prodenia litura, cotton bollworm, Chilo suppressalis, mealybugs and the like, and homopteran pests with piercing-sucking mouthparts such as plant hopper, aphid, whitefly, leafhopper and the like.

The invention relates to a breeding method for a natural enemy insect, in particular to a large-scale artificial feeding method for eretmocerus hayati. The method comprises the following steps of: breeding a host plant of cabbage; breeding a host of bemisia tabaci; and breeding the eretmocerus hayati. The breeding method for the eretmocerus hayati comprises the following steps of: moving cabbage seedlings loaded with nymphs of bemisia tabaci and an insect culture cage to a bee culture room which is taken as a host to culture parasitic bees; taking adult eretmocerus hayati into the bee culture room; removing adult parasitic bees after the adult eretmocerus hayati oviposits; and continuing to culture cabbage plants so that little cream yellow eretmocerus hayati pupae appear on the back of cabbage leaves. The preference temperature for eretmocerus hayati breeding is 24 to 28 DEG C; the suitable intensity for illumination, namely L: D is equal to 14:10; and the suitable humidity is 60 to 80 percent. The large-scale artificial feeding method for the eretmocerus hayati is simple and easy to master, is particularly convenient for indoor breeding and life cycle observation, and can be used for the uninterrupted propagation of the eretmocerus hayati throughout the year.

The invention discloses an aschersonia aleyrodis strain and the application of the strain. The aschersonia aleyrodis strain is a wild strain separated from bemisia tabaci body in Guangzhou area, which is naturally infected by worm living fungus. The wild strain is multi-planted on the bemisia tabaci body for the rejuvenation, so that the aschersonia aleyrodis strain is obtained; the purified strain is obtained through single spore isolation. The paecilomyces fumosoroseus strain is AA01-N8; the preservation number of the strain is CCTCC No: M207087; the strain is stored in China Center for Type Culture Collection on 27 June, 2007. Through a long term of infectious biology research and the indoor biology testing, the aschersonia aleyrodis has strong infectious and killing effects for a plurality of sucking mouth parts insects, such as the white fly and the cotton worm etc.

The invention provides an insecticidal antivirus composition which comprises Dufulin and an insecticide. The compound insecticidal antivirus composition can be prepared into soluble liquids, microemulsions, emulsions in water, suspensions, seed coating formulations, wettable powder granules, slow release granules, controlled release granules, water dispersible granules, dry suspending emulsions or granules for direct use and other dosage forms. The compound composition is used for controlling insects with sucking mouth parts and virus diseases caused by the insects with sucking mouth parts. The insects with sucking mouth parts include aphids, mites, scale insects, whiteflies, cicadas, plant lice, lacebugs, thrips and the like. The virus diseases caused by the insects with sucking mouth parts include rice stripe disease, common rice dwarf, rice black streak dwarf, rice yellow dwarf and the like. Therefore, the synergistic effect of treating insects and preventing diseases is achieved.

The invention relates to a method for the horizontal transfection of bemisia tabaci of the exogenous endosymbiotic bacteria, which pertains to the field of agricultural biotechnology. The preparation method includes: the purification of the exogenous endosymbiotic bacteria Wolbachia, the collection and fixation of a bemisia tabaci receptor, the horizontal transfection of the exogenous endosymbiotic bacteria Wolbachia to the bemisia tabaci receptor, the collection and fixation of an injection individual and the detection of the endosymbiotic bacteria. The invention is simple and quick, which can successfully transfect the exogenous endosymbiotic bacteria to a bemisia tabaci individual, and a bemisia tabaci offspring has higher infection rate.

The invention discloses a method for improving breeding efficiency of encarsia formosa. When bemisia tabaci nymphs are bred by adopting a variable-temperature mode, the method disclosed by the invention has the following advantages: 1, individuals of bemisia tabaci nymphs of 2-3 instar are bigger than nymphs of the same instar in the prior art; 2, the survival rate of the nymphs and adults of the bemisia tabaci of all instars is improved, and the time, from egg development to the nymphs and the adults, of the bemisia tabaci is shortened; 3, service lives of the bemisia tabaci adults produced by breeding are longer than bemisia tabaci adults bred by adopting a conventional mode; the bemisia tabaci adults obtained by variable-temperature breeding are used for breeding next generation bemisia tabaci; the egg laying amount of females is higher than that of female bemisia tabaci adults bred by adopting the conventional mode, and the parasitism rate of the encarsia formosa to the bemisia tabaci nymphs is improved. According to the method disclosed by the invention, by shortening the breeding time of an encarsia formosa host, the breeding efficiency of the encarsia formosa is improved.

The invention discloses an insecticidal composition containing sulfoxaflor, comprising A and B components, wherein the active component A is selected from sulfoxaflor and the active component B is selected from any one of the following insecticides: pymetrozine, imidacloprid, acetamiprid, nitenpyram, thiamethoxam, buprofezin, thiacloprid, clothianidin and dinotefuran; and the weight percentage of the active components A to B is: (1-50%): (1-50%). The composition can be used for preventing and treating many insects, has obvious synergy, expands the insecticidal range and has relatively high activity on sucking insects such as plant hopper, aphid, Empoasca pirisuga Matsumura and aleyrodid, and Lepidoptera pests such as plutella xylostella and spodoptera exigua. Furthermore, the composition reduces the usage of the farm chemical and residue of the farm chemical on the crops, alleviates the environment pollution, and has safety on both human and poultry, good environment compatibility; and the insects are difficult to generate drug resistance.