177 results about "Myzus persicae" patented technology

The invention discloses a fluoro methoxylpyrazole-containing o-formylaminobenzamide compound shown as a structural formula (I) or agriculturally suitable salts thereof, a synthesis method and application thereof. The fluoro methoxylpyrazole-containing o-formylaminobenzamide compound has the advantages of effectiveness, low toxicity, low cost and environmental safety and can be used for preventingand removing various pests in the fields of agriculture and horticulture or pests parasitized on animals. The fluoro methoxylpyrazole-containing o-formylaminobenzamide compound has very high activityon lepidopteran pests (plutella xylostella, spodoptera exigua and cotton bollworm), hemipteran pests (black peach aphid and aphis craccivora koch), homopteran pests (nilaparvata lugens), dipteran pests (liriomyza trifolii) and leaf beetle pests (phaedon conchleariae). Particularly, good effect on the lepidopteran pests, the hemipteran pests and the dipteran pests can be achieved under the condition of low dosage of the compound.

The invention discloses dsRNA (double-stranded ribonucleic acid) and application to aphid growth inhibition. The dsRNA provided by the invention is dsRNA as expressed by 1) or 2) as follows: 1) dsRNA consisting of ribonucleic acid as shown by a sequence 4 in a sequence table and ribonucleic acid as shown by a reverse complementary sequence of the sequence 4; and 2) dsRNA consisting of ribonucleicacid as shown by a sequence 5 in the sequence table and ribonucleic acid as shown by a reverse complementary sequence of the sequence 5. According to experiments, the obtained dsRNA of a conserved sequence of cytochrome P450cDNA (complementary deoxyribonucleic acid) of English grain aphids and green peach aphids can inhibit growth and development of the English grain aphids and the green peach aphids and can cause a lethal effect by adopting a method of feeding the dsRNA in vitro and using an RNAi (ribonucleic acid interfere) technology to silence the in-vivo cytochrome p450 of the English grain aphids and the green peach aphids.

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 relates to a Beaueria bassaria(Balsamo)Vuillemin SCWJ-2 strain and a culture method thereof, a spore powder prepared from the strain and application of the spore powder in preparing a biocontrol preparation. The biocontrol preparation can be used for preventing and treating sweetpotato whitefly, Frankliniella occidentalis, Neotoxoptera formosana and / or peach aphid. The biocontrol preparation can be used for preventing and treating insects in a high-temperature environment, and has favorable preventing and treating effects; and the field control effect is higher than 75%.

The invention relates to a Beaueria bassaria (Balsamo) Vuillemin bacterial strain GZGY-1-3, a culture method of the bacterial strain, spore powder prepared from the bacterial strain and application of the spore powder in preparing a biocontrol agent, wherein the biocontrol agent can be used for preventing and controlling bemisia tabaci, frankliniella occidentalis, green onion aphidand / or green peach aphid. The biocontrol agent can be used for preventing and controlling insects under a high temperature environment, and is good in prevention and control effect with field control efficiency over 75%.

The invention discloses a method for breeding aphidius gifuensis ashmead through floating tobacco seedlings, particularly relates to a method for breeding aphidius gifuensis ashmead through floating tobacco seedlings, which is realized through breeding aphids by cultivating uniform, robust tobacco seedling with proper density and inoculating mummified aphids under net covering condition, and belongs to the technical field of insect breeding and biological control of injurious insects. According to the technical system for breeding aphidius gifuensis ashmead efficiently through floating tobacco seedlings, innovation is achieved in the three aphidius gifuensis ashmead breeding steps including host plant cultivation, host myzus persicae breeding and aphidius gifuensis ashmead breeding, the aphidius gifuensis ashmead breeding cycle is shortened to be two months, and the number of mummified aphids and parasitic aphids existing in each square meter can reach over one hundred and twenty thousand; the steps such as tobacco plant transplantation and cultivation are omitted, management is easy and convenient, and a small number of manpower and material resources are needed. By the adoption of the method for breeding aphidius gifuensis ashmead through floating tobacco seedlings, the aphidius gifuensis ashmead can be bred by fully utilizing existing breeding facilities, aphidius gifuensis ashmead breeding facility investment is reduced, and aphidius gifuensis ashmead breeding cost is reduced. The method is tested in large-scale aphidius gifuensis ashmead breeding work, the time efficiency, the unit-area efficiency, the management efficiency, the aphidius gifuensis ashmead breeding facility utilization rate and other aspects of large-scale aphidius gifuensis ashmead breeding are improved comprehensively, the aphidius gifuensis ashmead breeding cost is reduced greatly, and the method for breeding aphidius gifuensis ashmead is adopted by most tobacco enterprises in China.

A coumarin-type compound with excellent bactericiding activity can be used to prevent and eliminate various diseases and pests of different agricultural crops, such as frosty mildew, rice blast, armyworm, plutella xylostella, etc. Its preparing process is also disclosed.

A vegetative acaricide is prepared from the curcumin, curcumone, synergist, emulsifier and disperser. It can be used for the mite of fruit tree, pests in storage room, and vegetable aphid.

The invention discloses a diffusion breeding and releasing method for preventing myzus persicae through harmonia axyridis. The myzus persicae is bred in a diffusion breeding shed, and an insect-proof net (7) covers the diffusion breeding shed; a tobacco seedling is cultivated through a floating method; when the tobacco seedling has five to six true leaves, tobacco leaves with the myzus persicae are put on the tobacco seedling to breed the myzus persicae; male and female harmonia axyridis adults captured in the wild are put into the insect-proof net, eat the myzus persicae and then mate to lay eggs; the eggs are incubated into larvae, or low-age larvae are directly collected, or after the larvae are pupated, pupae are taken back for eclosion at room temperature; the eclosion adults are fed with the myzus persicae and are put into a refrigerator for refrigeration and storage; the low-age larvae or the adults of the harmonia axyridis are put into a low-age larva transporting and releasing device (9) or an adult transporting and releasing device (10); the low-age larvae or the adults of the harmonia axyridis are released to a field according to a ratio of the harmonia axyridis to the myzus persicae of 1:(100-120) in a preliminary forming stage of the myzus persicae in the field. According to the method, the breeding speed rate of the harmonia axyridis can be remarkably improved, and the field pest control efficiency is improved in a mode of preventing the myzus persicae through the harmonia axyridis.

Disclosed are pyrazolyl pyrimidinamine compounds with structures as shown in Formula I. The definitions of each of the substituents can be seen in the description. The compounds of present invention have a broad spectrum of bactericidal, insecticidal and acaricidal activity, and have good control effect on downy mildew of cucumber, powdery mildew of wheat, corn rust, anthracnosis of cucumber and the like, and especially have better control effect on downy mildew of cucumber, powdery mildew of wheat and anthracnosis of cucumber. The compounds of present invention also show good insecticidal activity, part of the compounds, at very low doses, have excellent control effect on diseases caused by Plutella xylostella, armyworm, Myzus persicae, Tetranychus cinnabarinus etc.

The invention discloses a biological control method of crop-rotation tobacco field myzus persicae. The method has the following advantages that aphids are prevented through releasing aphidius gifuensis ashmead on oilseed rape of a preceding crop, the initial number of the aphids is obviously reduced in the growing period of tobaccos, meanwhile, the population quantity of the aphidius gifuensis ashmead is maintained in a tobacco field, the myzus persicae on the tobaccos is beneficially controlled during planting of following tobaccos, and the effect is better than a myzus persicae chemical control effect; a releasing mode that non-mummified alates where parasite aphidius gifuensis ashmead lives are combined with adult ashmead of the aphidius gifuensis ashmead is adopted, and the prevention effect is better than the effect that the non-mummified alates or the adult ashmead of the aphidius gifuensis ashmead is separately released; according to the biological control method, myzus persicae prevention does not need pesticides, use amount of chemical drugs is greatly reduced, influences of the chemical drugs on tobacco leaves are reduced and pollution to the environment is reduced.

The invention particularly relates to an artificial propagation method for myzus persicae, which belongs to the technical fields of insect breeding and propagation. The method comprises the steps of choosing a myzus persicae sensing tobacco variety, raising seedlings, transplanting, choosing myzus persicae, inoculating the myzus persicae and propagating the myzus persicae. According to the artificial propagation method, the propagation time and the propagation quantity of the myzus persicae can be adjusted flexibly according to practical requirements of tests or researches; different requirements of the myzus persicae under different conditions are met; and the method is simple to operate and uses little time and few labors.

The invention relates to artificial feed for myzus persicae, which comprises 2.5%-3.5% of amino acid mixture, 0.2%-0.3% of ascorbic trace element chelate, 0.1%-0.2% of vitamin B, 17%-20% of cane sugar, 3.0%-4.0% of tobacco juice, 0.4%-0.6% of KH2PO4, 0.1%-0.3% of MgCl2, 6H2O and 72%-75% of redistilled water. The artificial feed with the added tobacco juice has the evident effect on improving survival rate and reproductive rate of myzus persicae feeding the artificial feed. Breeding of myzus persicae with the artificial feed is insusceptible to seasons and available all the year round; mass breeding of myzus persicae is insusceptible to hosts and space; the impact of factors such as microbial infection, pesticides and the like can be relieved or avoided; and standard and uniform experimental myzus persicae is easy to obtain.

The invention provides a method for breeding aphidiidae through a flue-cured tobacco seedling cultivation greenhouse. The method includes the steps of regarding a flue-cured tobacco seedling cultivation greenhouse which is conventionally used as a foundation, setting up a stud aphid and stud bee cultivation base matched with the flue-cured tobacco seedling cultivation greenhouse, cultivating bee breeding tobacco seedlings through cultivating and reserving tobacco seedlings in a bee breeding chamber of the flue-cured tobacco seedling cultivation greenhouse, and conducting aphid inoculation and bee inoculation on the tobacco seedlings through stud aphids and stud bees till bee collecting and bee releasing are conducted. The operation is easy to conduct, the bee breeding effect is good, the cost is low, the method plays an overall role in preventing and controlling a whole tobacco planting area and myzus persicae of other corps in the whole tobacco planting area, therefore, a good biological control effect is achieved, and the method is suitable for popularization.

The invention discloses a method for protecting natural enemy insects by planting a sunflower luring belt in a tobacco field and belongs to the technical field of plant protection. The method maintains the existing tobacco cultivation mode, a line of sunflowers are planted in the periphery of the same tobacco field per 667 m<2>, a sunflower is planted in each end of each tobacco moisture block in the tobacco field, and the sunflowers are planted 25 days before the tobacco is transplanted. By means of the method, a luring and protection effect of the sunflowers on the natural enemy insects of the tobacco is effectively achieved, habitat adjustment is conducted, a habitat island in a tobacco filed ecological system is built and protected, an ecological environment favorable for proliferation of the natural enemy insects of tobacco is created, the total number of the natural enemy insects is increased by 30.35%, diversity index and evenness index of the natural enemy community are both increased, dominant concentration index is reduced, myzus persicae average plant damaging rate is reduced by 36%, damage conducted by injurious insects is effectively controlled, and a natural control effect of natural enemies on the injurious insects is promoted.

The invention discloses a fluorine-containing pyrimidine compound has a structural general formula I as shown in the specification, wherein definitions of substituents in the formula are as shown in the specification. The compound shown as the general formula I has broad-spectrum bactericidal and insecticidal activity in the field of agriculture. The compound shown as the general formula I has a good prevention effect on various germs such as cucumber downy mildew, wheat powdery mildew, puccinia sorghi, rice blast and cucumber gray mold, and particularly, still has the good prevention and control effect on the cucumber downy mildew, the puccinia sorghi and the wheat powdery mildew at a lower dosage. At the same time, a part of compound has better insecticidal activity, and can be used for preventing and controlling various insect pests such as diamondback moths, myzus persicae, armyworms and tetranychus cinabarinus boisdu.

The invention discloses a substituted aryloxy pyridine compound. The structure of the compound is shown in a general formula I, wherein each substituent is described in the specification. The compound with the general formula I has broad-spectrum sterilization and insecticidal activity in the agricultural field, has good prevention effects on a plurality of germs such as cucumber downy mildew, wheat powdery mildew, puccinia sorghi, rice blast and cucumber gray mold, and particularly has good prevention and control effects on the cucumber downy mildew and the puccinia sorghi under the condition of small dosage. In addition, a part of the compound has high insecticidal activity, and can be used for preventing and controlling armyworms, diamondback moths, myzus persicae, tetranychus cinnabarinus and the like.

The invention relates to the technical field of agriculture pest biological prevention and control devices, in particular to an automatic and continuous aphidiidae releasing device. The automatic and continuous aphidiidae releasing device comprises a supporting frame, a releasing hole formed in the supporting frame, a fixing ring, a 60-mesh gauze element and a 40-mesh gauze element, wherein the fixing ring is arranged in the release hole in a sleeved mode, the 60-mesh gauze element is fixed to the supporting frame, and the 40-mesh gauze element is arranged on the top face of the release hole. The 60-mesh gauze element is fixedly connected with the supporting frame through thin ropes. The 40-mesh gauze element is fixedly connected with the release hole through the fixing ring. By use of the automatic and continuous aphidiidae releasing device, eclosion of aphidiidae from stiff aphids is continuously carried out, the aphidiidae automatically enter a smoke yield to search for myzus persicae for parasitism, the parasitism rate can be improved to be 90-100%, manpower and material resources can be greatly saved, the prevention and control functions can be automatically and continuously achieved, and the aim of prevention and control over myzus persicae and aphid transmission viral diseases is achieved with a small quantity of pesticides or without pesticides.

The invention discloses pyrimidine-containing substituted azole compounds with a structure as shown in a formula 1 in the description. In the formula 1, the definition of each substituent is enclosedin the description. The compounds disclosed by the invention have broad-spectrum bactericidal function and insecticidal and acaricidal activities, and have excellent control efficacy on cucumber downymildew, puccinia polysora, cucumber anthracnose and the like, in particular on cucumber downy mildew and puccinia polysora. Part of the compounds show certain insecticidal cavity on myzus persicae and tetranychus cinnabarinus at the same time. The pyrimidine-containing substituted azole compounds can be used for preparing bactericidal, insecticidal and acaricidal agents.

The invention relates to a verticillium lecanii pesticide as well as the application thereof, and belongs to the plant protection and pesticide technology field. The bacterial strain provided by the invention is verticillium lecanii K1207 with CGMCC No.2326. The invention produces the bacterial strain via liquid and solid two-phase fermentation, and is characterized in that a wheat bran and bran coat culture medium is adopted as the solid culture medium. The cultured product can be added with and mixed with a wetting agent, a bulking agent and a stabilizing agent to obtain wettable powder after being parched and being crumbled. The inventive verticillium lecanii bacterial strain has high virulence, thereby having good control effects on pests such as green peach aphids, urolcueon formosanums, acyrthosiphon dirhodums, cabbage aphids, cabbage worms, diamondback moths, and greenhouse whiteflies. The materials in fermentation process are cheap and have wide sources, which is suitable for industrialized production without environmental pollution.

The invention discloses a method for quickly breeding aphidius gifuensis. The method includes steps of host plant cultivation, insect species breeding, bee species breeding and aphidius gifuensis breeding, a wild ansu apricot tree or peach tree seedling is selected as a host plant, and a puerile treetop produced from the seedling after water-fertilizer culture is subjected bee breeding for about 35-45 days, which is a reduction of 30 days when compared with using tobacco for seedling breeding. The host plant can be grafted with aphid after leaf buds germinate and leaves unfold on March of early spring, so that time for first-time breeding of aphidius gifuensis in tobacco-growing areas of Northeast China is shortened, and the problems of frost influence, high breeding energy consumption, low activity of aphidius gifuensis, staggering of bee breeding peak and aphid appearing peak and irregular mummified aphidius gifuensis forming are solved. By the method, bee breeding cost is lowered, and using range of aphidius gifuensis is widened; the host plant of five years old can breed more than 50 thousand myzus persicae, braconid parasitism rate is up to 80%, mummified aphid forming rate of the host plant is up to higher than 75%, and each host plant can breed mummified aphidius gifuensis and can prevent and control different crops by more than 60 mu.

The invention discloses an InDel mark tightly linked with the wild peach germplasm anti-green-peach-aphid properties and application thereof. An InDel site detected by a molecular marker Pp-InDel-23 corresponds to the 44057689th basic group position of the Lovell genome assembled Scaffold 1; the basic group sequence in the position is A or AGTCAAAT; the mark with the basic group in the site position being A is a resistant mark. The site and molecular marker method disclosed by the invention has the advantages that the detection site and an efficient tool can be provided for the peach anti-green-peach-aphid molecule breeding, anti-aphid property multi-property polymerization breeding and anti-aphid resource screening; the application prospects are wild.

The invention relates to a high-efficiency low-toxicity complex insecticidal agent composed of clothianidin and abamectin. The insecticidal agent is especially used in application researches of rice planthopper controlling. The synergetic insecticidal composition containing clothianidin and abamectin is characterized in that: the composition contains effective and active components of clothianidin and abamectin; and the composition contains components of, by weight: 0.1 to 50% of clothianidin, 50 to 0.1% of abamectin, and balance of auxiliary components allowed and acceptable in pesticides. The insecticidal composition provided by the invention is used for controlling heteroptera, coleopteran, diptera, some of lepidoptera, and other pests such as aphids, leafhoppers, thrips, and planthoppers on rice, vegetables, fruit trees and other crops. For example, the insecticidal composition can be used for controlling planthopper, rice leaf folder, striped rice borer, myzus persicae, green peach aphid, pear psylla, whitefly, and the like.

The invention relates to a synergistic pesticidal composition containing Clothianidin and emamectin benzoate, and its application. The synergistic pesticidal composition is mainly applied in research and application on prevention and treatment of rice hopper and borer. The invention solves the defects of most organophosphorus nicotine products used in pesticides at present, and the results of experiments show that the composition has good effect of controlling Sogatella furcifera. The pesticidal composition comprises the following active ingredients: 0.1-50 wt% of Clothianidin and 50-0.1 wt% of emamectin benzoate, and comprises the balance consisting of auxiliary agents and a carrier. The pesticidal composition can be applied to control plant hopper, borer, aphid, leafhopper, thrip, cabbage caterpillar, diamondback moth, beet armyworm, prodenia litura and other Hemiptera, Coleoptera, Diptera and some Lepidoptera insects for rice, vegetables, fruit trees and other crops. The other insects comprise plant hopper, rice leaf roller, Chilo suppressalis, tobacco aphid, Myzus persicae, Pear psylla, whitefly and the like. The invention also discloses the application of the pesticidal composition in lepidoptera insects and piercing and sucking type insects of crops.

The invention discloses a method large-scale breeding non-toxic myzus persicae. A tobacco material resistant to TMV (Tobacco Mosaic Virus) and PVY (Potato Virus Y) is used as a breeding host of aphids. After seedling growing or potting or transplanting, the aphids are artificially bred in a net house or a greenhouse, and a double-resistant strain with a high aphid breeding efficiency is selected to be used for breeding non-toxic aphids. The method adopts the tobacco material resistant to the TMV and the PVY to breed the aphids and can effectively reduce the potential risk of the aphids carrying virus diseases under the condition that the current aphid parasitoid breeding process and the cost are not increased. The method has the characteristics of simplicity, convenience and easiness in operation, economy, reliability and the like and can promote popularization and application of aphid parasitoid control crop aphids.

The invention discloses an application of a metarhizium anisopliae CQMa421 strain in the preparation of a medicine for preventing and treating aphids. The medicine for preventing and treating the aphids is prepared from the following raw materials in percentage by weight: 35%-52% of metarhizium anisopliae CQMa421 xerospore powder, 40%-50% of kieselguhr, 1%-2% of nanometer aluminum oxide, 3%-5% of sodium carboxymethylcellulose, 2%-4% of OP-10 and 2%-4% of HEL-40. Black peach aphids and lipaphis erysimi kaltenbach can be infected by the metarhizium anisopliae CQMa421 strain; and the fatality rate on the black peach aphids and the lipaphis erysimi kaltenbach can respectively reach 71.5% and 70.8%. The fatality rate of the metarhizium anisopliae CQMa421 strain prepared by adopting a method for enhancing the toxicity can reach 100% and is improved by 30%; and the effect is very outstanding. Various components of a metarhizium anisopliae preparation effectively cooperate to reach the effect of synergistic interaction. The metarhizium anisopliae preparation disclosed by the invention is sprayed by blending in water; and the field control effect on the black peach aphids and the lipaphis erysimi kaltenbach reaches 80% or above. The preparation has good ultraviolet resistant characteristic and wetting dispersion characteristic; the biological activity in long-term storage is kept; and the storage time can reach 12 months.

The invention relates to an insecticidal compound containing clothianidin and bifenthrin as effective components and an application thereof. The insecticidal compound provided by the invention is mainly used in the research and application of controlling whitefly and aphid. The insecticidal compound provided by the invention is characterized by containing the active components of clothianidin and bifenthrin. The compound contains 0.1-50 wt% of clothianidin, 50-0.1 wt% of bifenthrin and the balance being auxiliary components which are allowed and can be accepted in pesticides. The insecticidal compound provided by the invention can be applied to control a plurality of Hemiptera, coleopteran and Lepidoptera insects, such as whitefly, plant hopper, aphid, leafhopper, thrip, Psylla chinensis Yang et Li, Myzus persicae, yellow aphids, Myzus persicae, pod borer and the like, on paddy rice, vegetables, fruit trees and other crops. The insecticidal compound provided by the invention has an outstanding effect of controlling lepidoptera insects and piercing-sucking insects on crops.

The invention provides a diaeretiella rapae curtis carrier plant system. According to the diaeretiella rapae curtis carrier plant system, the carrier plant is tobacco, the replaceable host is myzus persicae, and the parasite is the diaeretiella rapae curtis. By means of the diaeretiella rapae curtis carrier plant system, a good diaeretiella rapae curtis breeding effect can be achieved, a certain amount of diaeretiella rapae curtis can be applied to preventing and controlling field target injurious insects, enough myzus persicae can be left to be used for continuous breeding of the diaeretiella rapae curtis, the usage amount of chemical pesticide is reduced, and the diaeretiella rapae curtis carrier plant system plays a very big role in vegetable injurious insect preventing and controlling.

The invention relates to a method of utilizing a seedling growing greenhouse to propagate harmonia axyridis in a large number. The method includes following steps: a, sowing tobacco; b, inoculating myzus persicae; c, inoculating ladybird; d, collecting the ladybird; e, refrigerating; f, performing daily management. Tobacco seedling growing greenhouse facility is utilized to realize large-scale production of tobacco seedlings, and breeding cost is lowered; the tobacco seedling growing greenhouse facility is utilized to meet temperature, humidity and light conditions and isolating conditions needed by myzus persicae and the ladybird, and death rate of myzus persicae and the ladybird is lowered; through collection and exposure of pupa to the sun, convenence in collection and storage of harmonia axyridis is realized, and transportation and storage death rate of the ladybird is lowered; through refrigerating the pupa, large-number storage, all-time transportation and all-time release of harmonia axyridis and lowering of storage cost can be realized.