CN106719623B - Pesticide composition for preventing and treating mealybug pests - Google Patents
Pesticide composition for preventing and treating mealybug pests Download PDFInfo
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- CN106719623B CN106719623B CN201611049000.6A CN201611049000A CN106719623B CN 106719623 B CN106719623 B CN 106719623B CN 201611049000 A CN201611049000 A CN 201611049000A CN 106719623 B CN106719623 B CN 106719623B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
- A01N25/06—Aerosols
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
- A01N47/06—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom containing —O—CO—O— groups; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/30—Microbial fungi; Substances produced thereby or obtained therefrom
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Abstract
The invention discloses an insecticide composition for preventing and treating mealybug pests, which comprises the active ingredients of spirotetramat and verticillium lecanii, wherein the mass percentage of the spirotetramat and the verticillium lecanii in the insecticide composition is 1-45%, and the mass ratio of the spirotetramat to the verticillium lecanii is (0.1-40): 1. The pesticide composition is mainly used for preventing and controlling mealybug pests, has the advantages of synergism, good permeability, high activity, stable effect, long lasting effect, small environmental influence, strong adhesion, evaporation resistance and the like, can be used for ultra-low-volume airplane spraying agents, can treat various crop pests, and has good application and popularization values.
Description
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to an insecticide composition for preventing and treating mealybug pests and a preparation method thereof.
Background
Spirotetramat is a tetronic acid compound, and is one of modern insecticides with bidirectional systemic conduction performance. The compound can move upwards and downwards in the whole plant body to reach leaf surfaces and barks, so that pests on leaves of lettuce and Chinese cabbage and fruit tree barks can be prevented. This unique systemic property protects the nascent stems, leaves and roots from the growth of pest eggs and larvae. It has another characteristic of long lasting period, and can provide effective control for up to 8 weeks. The prior spirotetramat preparation mainly comprises conventional preparations such as missible oil, suspending agent, wettable powder and the like, and the conventional preparations have low drug effect due to low adhesion to crops, poor permeability, large liquid medicine loss after application and serious fog drop drift. Frequent use of the pesticide can lead to continuous enhancement of pest resistance, is more unfavorable for prevention and control of pests, and brings great threat to human food guarantee and ecological environment
Verticillium lecanii (Zimmermann) Viegas is an entomopathogenic fungus with wider geographical distribution and host range, acts as a living biological pesticide and is widely used, and has the characteristics of completely new action mechanism different from the existing chemical pesticide, no pollution to the environment, no residue and the like, so the development and utilization of Verticillium lecanii have important economic significance. Verticillium lecanii can parasitize various insects, the most common are Homoptera aphids, whiteflies, scale insects, etc., Thysanoptera thrips, Orthoptera grasshoppers, hemiptera stink bugs, diptera leaf miners and aedes mosquitoes, etc. However, the pathogenic fungi have the defects of poor adhesion, slow infection speed and great influence on the control effect by environmental conditions in the using process. Is limited in practical application.
The compound technology of chemical pesticide and biological pesticide can reduce the use amount of chemical pesticide in actual production, delay the generation of pest drug resistance, improve the quick-acting performance of microbial pesticide and the like, and is an important method for reducing chemical pesticide residue. Therefore, the pesticide composition containing the chemical pesticide and the biological pesticide has important significance for the prevention and the treatment of the current pests.
On the other hand, the invention is a special oil agent prepared by using a high-boiling point green environment-friendly solvent to replace a benzene solvent and adding a vegetable oil synergistic component and a proper auxiliary agent. The invention has the advantages of good dispersibility, stable performance, good adhesion, obvious synergistic effect on target objects, more sufficient drug effect, convenient mechanical operation and the like, and simultaneously, the conidia of the fungus can keep long-term stability in the oil solution. The oil agent compounded by the spirotetramat and the verticillium lecanii improves the control effect, is beneficial to the comprehensive control of pests, and can overcome the defects of slow insecticidal effect, large environmental influence and unstable effect when the two single agents are used at present. Meanwhile, the invention can be directly used for spray application with ultra-low volume with little or no water, thereby enlarging the application occasions and conforming to the modern pesticide application technology with high work efficiency and light simplification.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the technical defects of using the prior spirotetramat and verticillium lecanii for preventing and controlling pests and providing a novel compound combination formula capable of realizing synergism and decrement. The pesticide composition for preventing and controlling mealybug pests provided by the invention can be sprayed by adding water, and can also be directly used for airplane ultra-low volume spraying without water.
The oil agent has strong permeability and adhesiveness, and the added vegetable oil and the glycerol can prevent fog drop drift, increase and reduce the quantity, reduce the pesticide loss and ensure the stability of fungal spores. The used mineral oil can also block the air holes of harmful organisms, thereby playing a role in disinsection. The solvent used in the invention is a green environment-friendly solvent, is different from benzene, and is safe to the environment. The invention aims to overcome the defects of low work efficiency, high labor intensity, more water requirement, poor control effect, short duration, strong resistance and the like existing in the process of controlling plant diseases and insect pests by conventional pesticide preparations and fungal pesticides, and provides an insecticide composition for controlling mealybug pests, which can be sprayed with water or directly sprayed with ultralow volume without water, has small fog drops, good pesticide effect, long duration, delayed pest resistance and high work efficiency, can effectively save labor force, reduce labor intensity and is safe to produce, store and use.
When the vegetable oil and other auxiliary agents used by the invention are used for preventing and controlling mealybug pests, the liquid medicine fog drops are difficult to drift and run off, and the liquid medicine fog drops have strong wetting, attaching and penetrating properties on target objects. Meanwhile, due to the property of the oil agent, the adhesion to the target is stronger, the rain wash resistance is realized, the drug effect can be exerted, and the action time of the drug can be prolonged. Especially in arid areas where water resources are scarce or mountainous areas where water transportation is difficult, the invention can be directly used for spray application with ultra-low volume because the invention needs little or no water, thereby enlarging the application occasions.
The invention is realized by the following technical scheme, and the pesticide composition is characterized in that the active ingredients comprise spirotetramat and verticillium lecanii, the mass percentage of the spirotetramat and the verticillium lecanii in the pesticide composition is 1-45%, and the mass ratio of the spirotetramat to the verticillium lecanii is (0.1-40) to 1;
the pesticide composition comprises the following components in percentage by mass: 1-35% of spirotetramat, 1-10% of verticillium lecanii powder, 1-15% of solvent, 1-20% of vegetable oil, 1-15% of surfactant, 0.1-5% of suspending agent, 0.1-3% of defoaming agent and the balance of mineral oil or glycerol;
the verticillium lecanii is conventional bacterium powder purchased from the market, and the spore content of the verticillium lecanii is 10-100 hundred million/g;
the solvent is one or the combination of more than two of dipropylene glycol dimethyl ether, tripropylene glycol monomethyl ether, tripropylene glycol dimethyl ether, 1-ethyl-2-pyrrolidone and isooctanol;
the vegetable oil is one or the combination of more than two of soybean oil, rapeseed oil, castor oil, corn oil, peanut oil, epoxidized soybean oil, epoxidized linseed oil or vegetable blend oil;
the surfactant is a combination of two or more of alkylphenol polyoxyethylene ether, styryl phenol polyoxyethylene ether, castor oil polyoxyethylene ether, fatty alcohol polyoxyethylene ether, sodium di-sec-octyl maleate sulfonate, polyol fatty acid ester and polyol fatty acid ester ethylene oxide adduct;
the defoaming agent can be selected from organic silicone and C8～10Fatty alcohol of (2), C10～20Saturated aliphatic hydroxy acid and one or more of its lipid and ester-ether type compounds;
the suspending agent is one or the combination of two of organic bentonite, white carbon black, sodium alginate and agar;
the pesticide composition can be used for preventing and treating various crop pests, is mainly used for preventing and treating mealybug pests, has the advantages of obvious synergistic action, good permeability, high activity, stable effect, long lasting effect, small environmental influence, strong adhesion, evaporation resistance and the like, can be used for an ultra-low-volume airplane spray, and can also be used for treating various crop pests;
the preparation method of the pesticide composition comprises the following steps: dissolving spirotetramat in solvent, adding Verticillium lecanii powder, vegetable oil, surfactant, suspending agent, defoaming agent, mineral oil or glycerol, mixing, stirring, transferring into high shear machine, and stirring for 1-30min to obtain oil solution.
Compared with the prior art, the invention has the advantages and beneficial effects that:
(1) the compound pesticide of the invention adopts two single agents of the spirotetramat and the verticillium lecanii powder to be compounded, overcomes the defects of slow drug effect and easy environmental influence of the verticillium lecanii powder, integrates the advantages of the original single agents, has obvious synergistic action, has stronger toxicity to the pests such as the mealybugs and the like, can greatly improve the insecticidal effect and obviously shortens the onset time.
(2) The combination of vegetable oil, mineral oil or glycerin is added, so that the survival rate of spores can be improved, the fungus infection rate is greatly improved, the liquid medicine can be permeated and have strong adhesiveness, the fog drop drift is prevented, the pesticide loss is reduced, the effect can be enhanced and reduced, the used mineral oil can also block the air holes of harmful organisms, the insect killing effect is achieved, the drug resistance of the harmful organisms is reduced in multiple directions, and the drug effect is improved.
(3) Uses green environment-friendly solvent, does not contain benzene, and is safe to operators and environment in the production and use processes.
(4) In arid areas where water resources are short or mountainous areas where water transportation is difficult, the invention can be directly used for ultra-low volume spray application because of little or no water addition, thereby enlarging the application occasions and conforming to the modern agricultural application technology of high work efficiency and light simplification.
Drawings
FIG. 1 is a process flow chart for preparing spirotetramat-verticillium lecanii oil.
Detailed Description
In order to better understand the essence of the present invention, the present invention is further described in detail below with reference to specific examples, but the present invention is not limited thereto. The raw materials and reagents used in the present invention are all commercially available conventional raw materials and reagents, unless otherwise specified:
1. the first embodiment is as follows:
20% of spirotetramat, 4% of verticillium lecanii, 15% of 1-ethyl-2-pyrrolidone, 15% of epoxidized soybean oil, 15% of styryl phenol polyoxyethylene ether, 0.2% of C8-10 fatty alcohol, 2% of white carbon black and the balance of mineral oil.
The preparation method of the insecticidal composition comprises the following steps:
dissolving the spirotetramat according to the mass percentage, then adding Verticillium lecanii powder, vegetable oil, surfactant, suspending agent, antifoaming agent and glycerol, mixing and stirring uniformly, transferring into a high shear machine, and stirring for 10min to obtain an oil agent, wherein the flow chart is shown in figure 1.
And (3) determining the insecticidal effect:
1. test subjects: leptospermum scoparium
2. Reagent to be tested: the pesticide composition prepared in the first embodiment of the invention; 10% Verticillium lecanii oil and 25% spirotetramat oil were prepared in the same manner as in example 1.
4. Test methods and results: weighing 20 g of each test agent accurately by a balance, diluting with water by a certain multiple, uniformly spraying to prevent and treat the Hibiscus sordidus on cotton, repeating the treatment for 3 times by taking clear water as a blank Control (CK), counting the number of dead insects and the number of live insects after 96 hours, and calculating the average decline rate and correcting the prevention effect. The results show that the control effect of the 24% spirotetramat-verticillium lecanii oil agent in 96 hours after 1000 times of the application is 90.3%, while the control effects of the 10% verticillium lecanii oil agent and the 25% spirotetramat oil agent in 96 hours after the application are respectively 52% and 73.2% according to the same method, which shows that the control effect of the invention on the hibiscus fargecko is obviously better than that of the single dose verticillium lecanii oil agent and spirotetramat oil agent, and the results are shown as follows:
table 1 insecticidal effect of the insecticide composition on bearberry mealybug:
2. example two:
10% of spirotetramat, 3% of verticillium lecanii, 10% of dipropylene glycol dimethyl ether, 20% of soybean oil, 10% of alkylphenol polyoxyethylene ether, 0.3% of organic silicone, 2% of organic bentonite and the balance of glycerol.
The preparation method and the test method of the pesticide composition are the same as those of example 1 and example one, and the results show that the control effect of 13% of spirotetramat-verticillium lecanii oil agent after 800 times of pesticide application in 96 hours is 88.9%, while the control effects of 5% of verticillium lecanii oil agent and 15% of spirotetramat oil agent after 96 hours are respectively 46.3% and 68.1%, which shows that the control effect of the pesticide composition on the mealybug solenopsis is obviously better than that of single dose of verticillium lecanii oil agent and spirotetramat oil agent,
3. example three:
30% of spirotetramat, 6% of verticillium lecanii, 20% of isooctyl alcohol, 20% of corn oil, 15% of polyol fatty acid ester, 0.1% of ester-ether type compound, 1% of agar and the balance of mineral glycerol.
The preparation method and the test method of the pesticide composition are the same as those of example 1, and the results show that in the example, the control effect of 36% of the verticillium lecanii oil agent after 3000 times of pesticide application for 96 hours is 94.8%, while the control effects of 6% of the verticillium lecanii oil agent and 40% of the spirotetramat oil agent after 96 hours of pesticide application are 52% and 79.1% respectively, which shows that the control effect of the pesticide composition on the mealybug solenopsis is obviously better than that of the single dose of the verticillium lecanii oil agent and the single dose of the spirotetramat oil agent after 96 hours of pesticide application.
Claims (4)
1. The pesticide composition is characterized by comprising the following components in percentage by mass: 20% of spirotetramat, 4% of verticillium lecanii, 15% of 1-ethyl-2-pyrrolidone, 15% of epoxidized soybean oil, 15% of styryl phenol polyoxyethylene ether and C8～100.2 percent of fatty alcohol, 2 percent of white carbon black and the balance of mineral oil.
2. The pesticide composition as claimed in claim 1, wherein the Verticillium lecanii is commercially available conventional powder with a spore content of 10-100 hundred million/g.
3. Use of the pesticidal composition according to claim 1 or 2 for controlling crop pests.
4. Use according to claim 3, characterized in that the crop pests are mealybug pests.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611049000.6A CN106719623B (en) | 2016-11-25 | 2016-11-25 | Pesticide composition for preventing and treating mealybug pests |
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| CN107535489B (en) * | 2017-09-07 | 2020-05-08 | 安徽农业大学 | Special synergist for low-volume or ultra-low-volume spray application and preparation method and application thereof |
| CN113046249B (en) * | 2021-05-17 | 2022-08-30 | 福建省农业科学院植物保护研究所 | Verticillium lecanii LL-01 and biocontrol application thereof |
| CN114375962A (en) * | 2021-12-08 | 2022-04-22 | 赤天化科技集团有限公司 | Spirotetramat insecticidal composition and application |
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| CN102379299A (en) * | 2011-09-13 | 2012-03-21 | 广西田园生化股份有限公司 | Ultralow volume liquid containing spirotetramat |
| UA119331C2 (en) * | 2013-11-08 | 2019-06-10 | Новозімес Біоаґ А/С | Compositions and methods for treating pests |
| CN103749546B (en) * | 2013-12-24 | 2015-12-30 | 华南农业大学 | A kind of rose dark brown Isaria and beta-cypermethrin oil-suspending agent and application thereof |
| CN104255808A (en) * | 2014-08-25 | 2015-01-07 | 谢明 | Lecanicillium lecanii oil solution, preparing method thereof and applications of the oil solution in agricultural pest control |
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