CN104604944A - Method for combined prevention and control of harmful mites by predatory mites and bifenazate - Google Patents
Method for combined prevention and control of harmful mites by predatory mites and bifenazate Download PDFInfo
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- CN104604944A CN104604944A CN201510038505.1A CN201510038505A CN104604944A CN 104604944 A CN104604944 A CN 104604944A CN 201510038505 A CN201510038505 A CN 201510038505A CN 104604944 A CN104604944 A CN 104604944A
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Abstract
The invention belongs to the field of pest prevention and control and relates to a method for combined prevention and control of spider mites by predatory natural enemies-phytoseiulus persimilis and a chemical agent-bifenazate. The method involves a release proportion and the release time of the phytoseiulus persimilis, a use method of bifenazate and a coordinative application effect of the phytoseiulus persimilis and bifenazate. The method utilizes the safety of bifenazate on the predatory mites, combines pest control with pest in biological prevention and control with chemical prevention and control, coordinates limitations of bifenazate and the predatory mites in prevention and control of the spider mites, brings the fast-acting property of chemical prevention and the persistence property of biological prevention into play, explores a novel prevention and control way, and achieves purposes of improving prevention and control efficiency, reducing prevention and control cost, saving manpower and material resources and delaying the resistance of bifenazate during field application, thereby realizing sustainable control on pests.
Description
Technical field
The present invention relates to field of pest control, relate to a kind of predator Phyloseiulus nersimilis and chemical agent Bifenazate and combine the method for preventing and treating evil mite.
Background technology
Spider mite kind is the important harmful mite of the crop such as fruit tree and vegetables.Because this mite bodily form is small, generation cycle is short, reproduction rate is high, and times for spraying is many, and this mite is all developed immunity to drugs to multiple miticide, population outbreak in various crop in recent years, the producer uses various medicament to carry out prevention and control, but produces little effect, and severe patient of causing harm causes crop to uproot plants after their edible portions have been harvested in advance, output reduces, and even has no harvest.
Biological control is the important technical of tetranychid prevention and control in the world, Phyloseiulus nersimilis
phytoseiulus persimilisbe a kind of predator tetranychid to stronger control action, at home and abroad there is application in multiple area, is mainly used in the evil such as Tetranychus urticae, the Mite mite prevented and treated on the horticultural crops such as vegetables, flowers, strawberry.But the artificial propagation of Phyloseiulus nersimilis needs to raise with live body prey, and cause large-scale breeding technology relative complex, production cost is high, should improve prevention and control efficiency to reduce prevention and control cost when Field information.In addition, because tetranychid individuality is small, early stage, Characteristics of Damage was not obvious, and grower is usually higher and just start when working the mischief to carry out prevention and control in tetranychid density, if use biological prevention, then needed to discharge Predatory Mites in a large number to play good control effect.
Bifenazate (bifenazate) is a kind of new selective blade face miticide, in China, is to the most effective medicament of tetranychid at present, and the conventional miticides such as Avermectin, pyridaben, propargite and Hexythiazox well can not control the harm of this mite.Bifenazate acts on Tetranychus urticae CYTB gene, and the sudden change of G126S, I126T, S141F, P262T can cause Tetranychus urticae to strengthen the pesticide resistance of Bifenazate, therefore has higher resistance risk.In addition, when carrying out the prevention and control of tetranychid with chemical agent, easily because of the existence that dispenser is uneven, pesticide resistance is individual, and omitting some individualities, causing the outburst again of tetranychid population to endanger.
And Bifenazate is a kind of to Predatory Mites safe chemistry medicament, in order to coordinate the two limitation in tetranychid prevention and control, play the quick-acting of chemoprevention and the persistence of biological and ecological methods to prevent plant disease, pests, and erosion, predator and chemical agent are organically combined and control evil mite, associating effect of both performances has boundless application prospect.
Summary of the invention
The object of this invention is to provide a kind of predator Phyloseiulus nersimilis and Bifenazate and combine the method for preventing and treating evil mite.
The present invention utilizes the combination of Phyloseiulus nersimilis and Bifenazate, plays respective advantage, improves quick-acting and lasting effect, reduces costs the usage amount with agricultural chemicals, delay drug-fast generation.
The present invention realizes with following technical scheme: indoor mass rearing Tetranychus urticae and Phyloseiulus nersimilis, by indoor biometrics method and field adaptability technology assessment Bifenazate to Phyloseiulus nersimilis safety, on the control efficiency of Tetranychus urticae and the two use in conjunction on Phyloseiulus nersimilis and the impact of Tetranychus urticae population quantity.
Advantage of the present invention
1, Phyloseiulus nersimilis can take food multiple harmful mite, and predatory number is large, and mobility is comparatively strong, to bio-safeties such as people, animal, and environmentally safe.
2, Bifenazate quick-acting is strong, and preventive effect is high, and toxicity is low, and to Predatory Mites safety, selectivity is strong.
3, the two use in conjunction, play the mixing preventive effect that predator preys on prevention and control and Bifenazate for a long time, prevent and treat efficiency and significantly improve, preventive effect is thorough.
4, use manpower and material resources sparingly, owing to reducing spraying times, other natural enemy insects of available protecting, promote bio-diversity, realize the sustainable control of insect.
Accompanying drawing explanation
Fig. 1 is the curve map that the different disposal described by patent of the present invention affects Phyloseiulus nersimilis lethality rate.
Embodiment
1.1 test material
Pick up from respectively on the Strawberry Seedlings in greenhouse, little Tang mountain, Changping District, Beijing for examination Tetranychus urticae, Phyloseiulus nersimilis, raise in indoor respectively after adopting back.
Reagent agent is Bifenazate (Bifenazate) suspending agent of 43% of Chemtura Corporation of U.S. production.
1.2 Bifenazates are on the impact of Phyloseiulus nersimilis lethality rate
According to field, actual a situation arises, if by becoming mite to choose at random in the larvarium made to culture dish, being put into below spray tower by the culture dish with Predatory Mites and leaf and spraying medicine.Spray medicine is after 30 minutes, choose in each ware and to feed Predatory Mites into Tetranychus urticae, then the incubator that temperature is 25 DEG C, relative moisture 75%, illumination L ﹕ D are 16 ﹕ 8 is placed in, respectively at 24,48,72,96h time under anatomical lens, check the death condition of Predatory Mites, with writing brush touch can not creep be considered as death.
1.3 Phyloseiulus nersimilis combine the research to Tetranychus urticae control effects with Bifenazate
Field modeling Phyloseiulus nersimilis, Bifenazate and the two use in conjunction are to the control effects of Tetranychus urticae, the length that the Tetranychus urticae that field gathers is seeded in indoor plantation is had on the eggplant seedling of 4-5 sheet true leaf, Tetranychus urticae is normal on seedling breeds after two weeks, if add up the one-tenth mite quantity on every young plant by leaf, process 1 is thrown in than for 1:30 according to benefit evil, process 2 is thrown according to process 1 same ratio, doubly carries out the process of blade face spray medicine with 43% Bifenazate suspending agent 3000 simultaneously; Process 3 does not throw in Phyloseiulus nersimilis, only doubly carries out the process of blade face spray medicine with 43% Bifenazate suspending agent 3000, and establish blank.
Result of the test shows, if 43% Bifenazate suspension 3000 times liquid process becomes mite impact little on Phyloseiulus nersimilis, after medicine, the lethality of 1 day is only 1%, after medicine, the lethality of 2 days is 2%, because Bifenazate is contact quick-acting medicament, lasting effect is poor, extends lethal effect in time and obviously reduces, and the lethality of 2 days, 4 days is respectively 1.25% and 2.5% after spraying clear water medicine, with chemicals treatment difference little (Fig. 1).
Result of the test shows, there is very big-difference in the control effects of different disposal to Tetranychus urticae, latter 2nd day of process, the preventive effect of 43% Bifenazate suspending agent 3000 times liquid, Bifenazate and Phyloseiulus nersimilis Combined Treatment is apparently higher than the preventive effect without chemicals treatment district, reach 94.33%, 97.35% respectively, therebetween there was no significant difference, passes preventive effect in time and improves constantly, and reaches 100% during the preventive effect of Combined Treatment the 18th day; Although and chemicals treatment district preventive effect improves constantly, continue in time, borer population amount of living constantly rises, and preventive effect started to decline the 22nd day time, was 96.28% when the 26th day, lower than other process, and significant difference in 0.05 level.Although be starkly lower than chemicals treatment to the control effects of Tetranychus urticae the 2nd day time by simple Phyloseiulus nersimilis of throwing in, preventive effect is 29.79%, but extend in time, preventive effect improves constantly, 1:30 reached 100% the 22nd day time, this result illustrates that the simple Phyloseiulus nersimilis that uses controls Tetranychus urticae, and the initial stage prevents and treats efficiency lower than 43% Bifenazate, and the later stage is more more thorough than simple chemicals treatment.Therefore, it is high that the two conbined usage can reach quick-acting, reduces the harm to crop; Lasting effect is good, reduces consumption of chemical agent; Reduce phytoseiid mite injected volume, reduce costs.
Binding tests result is described in further detail the present invention, and the present invention also has following a few point patterns in the specific implementation:
First release time and the burst size of Predatory Mites will be noted, if tetranychid initial stage of origination, every sheet leaf tetranychid quantity, within 5, discharges than 1:50 by benefit evil, if tetranychid quantity is within 30, can discharge by 1:30, if when tetranychid amount is larger, available Bifenazate 3000 doubly carries out chemical control, discharges after reducing mite amount again, attention discharges after must first spraying medicine, effectively can avoid the injury caused phytoseiid mite of spraying like this.
Carry out chemical control and coordinate application, if there are other insects simultaneously, during as aphid, aleyrodid generation, throw in again after a chemical control must being carried out in advance.Because Tetranychus urticae is that Assembled distribution will be thrown in for tetranychid generation strain when discharging, and the mutual lapping of blade between plant, be convenient to Predatory Mites diffusion, just can reach good control effects.
Table 1 Different treatments is to the control effects of Tetranychus urticae
Claims (4)
1. predator Phyloseiulus nersimilis combines a method of preventing and treating evil mite with chemical agent Bifenazate, it is characterized in that described method comprises release Phyloseiulus nersimilis and Bifenazate applying step.
2. predator Phyloseiulus nersimilis according to claim 1 combines the method for preventing and treating evil mite with chemical agent Bifenazate, it is characterized in that described harmful mite is Tetranychus urticae, Tetranychus cinnabarinus, Mite, European red mite etc.
3. the method for the mite of control evil according to claim 1, it is characterized in that the coordination application will noting carrying out chemoprevention and biological and ecological methods to prevent plant disease, pests, and erosion, at tetranychid initial stage of origination to discharge Phyloseiulus nersimilis for means, when tetranychid occurs serious, available Bifenazate carries out chemical control, after the radix reducing tetranychid, discharge Predatory Mites again.
4. the method for the mite of control evil according to claim 1, it is characterized in that the best benefit when discharging Phyloseiulus nersimilis is harmful than being 1:30, the working concentration of 43% Bifenazate suspending agent is 3000 times of liquid.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113016452A (en) * | 2021-03-02 | 2021-06-25 | 天津市农业科学院 | Method for preventing and treating peach tree pest mites by predatory mites and application |
| CN113229004A (en) * | 2021-04-26 | 2021-08-10 | 福建省农业科学院植物保护研究所 | Comprehensive control method for strawberry mites |
Citations (2)
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| CN101331869A (en) * | 2008-08-07 | 2008-12-31 | 北京市农林科学院 | Chile phytoseiulus persimilis propagating method |
| CN101530109A (en) * | 2009-04-27 | 2009-09-16 | 陕西上格之路生物科学有限公司 | Bifenazate-containing insecticidal composition |
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2015
- 2015-01-27 CN CN201510038505.1A patent/CN104604944A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331869A (en) * | 2008-08-07 | 2008-12-31 | 北京市农林科学院 | Chile phytoseiulus persimilis propagating method |
| CN101530109A (en) * | 2009-04-27 | 2009-09-16 | 陕西上格之路生物科学有限公司 | Bifenazate-containing insecticidal composition |
Non-Patent Citations (4)
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| F. JAVIER SA´ ENZ-DE-CABEZO´ N IRIGARAY: "Residual toxicity of acaricides toGalendromus occidentalis and Phytoseiulus persimilis reproductive potential", 《BIOLOGICAL CONTROL》 * |
| RHODES, ELENA M: "Comparison of single and combination treatments of Phytoseiulus persimilis, Neoseiulus californicus, and Acramite (bifenazate) for control of twospotted spider mites in strawberries", 《EXPERIMENTAL AND APPLIED ACAROLOGY》 * |
| 徐学农 等: "国际捕食螨研发与应用的热点问题及启示", 《中国生物防治学报》 * |
| 王银方: "智利小植绥螨（Phytoseiulus persimilis）实验种群生态学及捕食功能的研究", 《中国优秀硕士学位论文全文数据库 农业科技辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113016452A (en) * | 2021-03-02 | 2021-06-25 | 天津市农业科学院 | Method for preventing and treating peach tree pest mites by predatory mites and application |
| CN113229004A (en) * | 2021-04-26 | 2021-08-10 | 福建省农业科学院植物保护研究所 | Comprehensive control method for strawberry mites |
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Application publication date: 20150513 |