CN111466396B - Insecticidal composition and preparation and application thereof - Google Patents

Insecticidal composition and preparation and application thereof Download PDF

Info

Publication number
CN111466396B
CN111466396B CN202010429939.5A CN202010429939A CN111466396B CN 111466396 B CN111466396 B CN 111466396B CN 202010429939 A CN202010429939 A CN 202010429939A CN 111466396 B CN111466396 B CN 111466396B
Authority
CN
China
Prior art keywords
benzoate
stevioside
emamectin
spinosad
insecticidal composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010429939.5A
Other languages
Chinese (zh)
Other versions
CN111466396A (en
Inventor
唐兴敏
柴方堃
贾成国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Veyong Bio Chemical Co ltd
Original Assignee
Hebei Veyong Bio Chemical Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Veyong Bio Chemical Co ltd filed Critical Hebei Veyong Bio Chemical Co ltd
Priority to CN202010429939.5A priority Critical patent/CN111466396B/en
Publication of CN111466396A publication Critical patent/CN111466396A/en
Application granted granted Critical
Publication of CN111466396B publication Critical patent/CN111466396B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • 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
    • 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
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
    • A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
    • 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
    • A01N45/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds having three or more carbocyclic rings condensed among themselves, at least one ring not being a six-membered ring

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Plant Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Toxicology (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention relates to the technical field of pesticide preparation, and particularly discloses an insecticidal composition, and a preparation and application thereof. The invention provides an insecticidal composition, which selects emamectin B2aBenzoate, pleocidin and stevioside are compounded, wherein emamectin B2aThe benzoate and the spinosad have synergistic effect, plant extract stevioside is further added as a synergist, and the synergist and the original medicine emamectin benzoate B2aThe benzoate and the pleocidin generate a synergistic effect, and meanwhile, the specific structure and the sweet taste of the stevioside can attract the feeding behavior of pests, so that the pesticide effect is further improved. The insecticidal composition provided by the invention has the advantages that the prevention and control effects on thrips pests are obviously improved by selecting raw materials with different action mechanisms for compounding, the effect duration is long, the compatibility with the environment is good, the pests are not easy to generate drug resistance after long-term use, and the popularization value is very high.

Description

Insecticidal composition and preparation and application thereof
Technical Field
The invention relates to the technical field of pesticide preparation, and particularly relates to an insecticidal composition, and a preparation and application thereof.
Background
Thrips are common pests on crops such as vegetables, melons, rice and the like, thrips occur all the year round, spring, summer and autumn mainly occur in open lands, winter mainly occurs in greenhouses, adults and nymphs file and suck young tissue (branches, tips, leaves, flowers, fruits and the like) juice of plants, damaged tender leaves and tips become hard, curl and wither, the plants grow slowly, and internodes are shortened; young fruits (such as eggplants, cucumbers, watermelons and the like) are hardened after being damaged, and fruit drop is caused in severe cases, so that the yield and the quality are seriously influenced. The thrips pests have tiny body types, are usually hidden in plant buds, are difficult to find, have strong reproductive capacity, can be massively erupted into pests in a short time, and are mainly chemically controlled in agricultural production. For a long time, due to the unscientific and reasonable use of chemical pesticides, the pests of thrips have serious resistance, and the effective prevention and control of thrips are difficult to carry out.
Methylamino avermectin B2aThe benzoate is a macrolide pesticide with broad insecticidal spectrum, and can be used for killing Lepidoptera, Coleoptera, Hemiptera, Diptera, Homoptera, Thysanoptera and mitesThe pests such as the insects have high killing activity, but the control effect on the sucking mouth insects is not ideal, and the duration is short. Therefore, the research and the design of the pollution-free biological pesticide with good killing activity to the thrips pests and long lasting effect have very important significance.
Disclosure of Invention
Aiming at the problems of non-ideal effect and poor persistence of the insecticidal composition on the thrips pests in the prior art, the invention provides the insecticidal composition and a preparation and an application thereof.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
an insecticidal composition contains methylamino abamectin B as effective component2aBenzoate and spinosad, and the synergist comprises stevioside.
In the prior art, the insecticidal composition provided by the invention selects emamectin benzoate B2aBenzoate, pleocidin and stevioside are compounded as main components, wherein emamectin B2aThe benzoate and the spinosad have synergistic effect, plant extract stevioside is further added as a synergist, and the synergist and the original medicine emamectin benzoate B2aThe benzoate and the pleocidin generate a synergistic effect, and meanwhile, the specific structure and the sweet taste of the stevioside can attract the feeding behavior of pests, so that the pesticide effect is further improved. The insecticidal composition provided by the invention has the advantages that the prevention and control effects on thrips pests are obviously improved by selecting raw materials with different action mechanisms for compounding, the effect duration is long, the compatibility with the environment is good, the pests are not easy to generate drug resistance after long-term use, and the popularization value is very high.
Methylamino avermectin B2aThe benzoate is a novel high-efficiency semi-synthetic antibiotic insecticide synthesized from a fermentation product abamectin B1, has the characteristics of biological pesticides of ultra-high efficiency, low toxicity (preparation is nearly nontoxic), low residue, no public nuisance and the like, is widely used for controlling various pests on crops such as vegetables, fruit trees, cotton and the like, has wide insecticidal spectrum, and can be used for controlling lepidoptera, coleopteran, hemiptera, dipteran, homopteran, thysanoptera, mites and the likeThe pest has high-efficiency killing activity, is effective to underground pests of mole cricket, root maggot and root aphid, has special effect on the nematode, but has undesirable effect on piercing-sucking insects and has short duration.
Spinosad, also known as spinosad, is a macrolide pollution-free high-efficiency biopesticide extracted from spinosyn fermentation liquor, has insecticidal activity far exceeding that of organic phosphorus, carbamate, cyclopentadiene and other insecticides, can effectively control pests including lepidoptera, diptera and thysanoptera pests, and simultaneously has certain poisoning effect on certain specific types of pests of coleoptera, orthoptera, hymenoptera, isoptera, siphonaptera, dermaptera and rodentia, but has unsatisfactory control effect on piercing-sucking mouthpart insects and mites.
Stevioside, a novel sweetener extracted from stevia rebaudiana Bertoni of Compositae, has the functional activities of lowering blood pressure, reducing blood fat, resisting tumor, regulating immunity and the like, is widely applied to various foods, beverages, medicines and daily chemical industries, but has not been reported to be applied to the field of pesticides.
Preferably, the emamectin B2aThe mass ratio of the benzoate to the spinosad to the stevioside is 1-40:1-40: 0.1-1.
More preferably, the emamectin B2aThe mass ratio of the benzoate to the spinosad to the stevioside is 1-10:1-10: 0.4-0.6.
In the case of the preferred mass ratio, emamectin B2aThe benzoate, the pleocidin and the stevioside are combined for use, so that the synergistic effect is very obvious, the excellent control effect on the thrips pests is realized, and the lasting period can be obviously prolonged.
The invention also provides an insecticide, which comprises the pesticide composition.
Preferably, the pesticide also comprises an auxiliary agent, and the emamectin benzoate B2aThe total mass of benzoate, spinosad and stevioside accounts for 2.1-81 wt% of the pesticide.
The preferable content is favorable for obtaining higher control effect on the premise of less pesticide dosage.
Preferably, the auxiliary agent comprises at least one of a cosolvent, a dispersing agent, a wetting agent, a defoaming agent, a disintegrating agent, a thickening agent or a filler.
In order to prepare the insecticidal composition into various formulations, a plurality of auxiliary agents are required to be added, and the cosolvent, the dispersant, the wetting agent, the defoamer, the disintegrant, the thickener or the filler are all commonly used in the field of pesticides, and different auxiliary agents can be selected according to different formulations, and specific components and dosage can be determined through routine experiments according to formulation requirements.
Optionally, the pesticide is in the form of microcapsule suspension, suspension seed coating, emulsion in water, microemulsion, emulsifiable concentrate, wettable powder, water dispersible granules or granules.
The preparation can be prepared by selecting conventional additives in the field of pesticides according to a conventional preparation process. The pesticide composition is prepared into various dosage forms, is convenient to use, and meets different pesticide prevention and treatment requirements.
The insecticidal composition can be prepared into a microcapsule suspending agent, and the microcapsule suspending agent comprises the following raw material components in percentage by mass: methylamino avermectin B2a1-40% of benzoate, 1-40% of spinosad, 1-40% of solvent, 1-10% of wall material, 0.5-8% of curing agent, 1-10% of emulsifier, 1-10% of dispersant, 0.1-2% of thickener, 1-4% of antifreeze, 0.1-0.5% of preservative, 0.1-0.5% of defoamer, 0.1-1% of stevioside and the balance of water to 100%.
Wherein the solvent is at least one of sec-butyl acetate, dimethyl carbonate, N-dimethylformamide, N-methyl pyrrolidone, vegetable oil, mineral oil, methyl oleate, solvent oil and pine-based oil; the wall material is polyisocyanate, aliphatic isocyanate or urea; the curing agent is at least one of glycerol, 1, 2-propylene glycol, 1, 4-butanediol, diethylene glycol, polyethylene glycol 200, polyethylene glycol 400, dimethylamine, isopropylamine, ethylenediamine, triethylamine and triethanolamine; the emulsifier is at least one of sodium lignosulfonate, sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether, sodium lauryl sulfate, polyvinyl alcohol, polycarboxylate, naphthalene sulfonate, castor oil polyoxyethylene ether and sorbitol monolaurate; the dispersing agent is at least one of sodium dodecyl benzene sulfonate, sodium lignosulfonate, nekal, desugarized sodium lignosulfonate, sodium succinate sulfonate, nonylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether; the thickening agent is at least one of magnesium aluminum silicate, xanthan gum, polyethylene glycol, polyvinyl alcohol, sodium carboxymethylcellulose, chitosan, bentonite and white carbon black; the antifreezing agent is at least one of ethylene glycol, 1, 2-propylene glycol, glycerol, urea and isopropanol; the preservative is at least one of sodium benzoate, isothiazolinone, benzisothiazolinone, potassium sorbate and quaternary ammonium salt; the defoaming agent is an organic silicon defoaming agent or a polyether defoaming agent.
The preparation of the microcapsule suspending agent from the insecticidal composition can improve the stability of active ingredients, control the release of medicaments, prolong the lasting period, improve the utilization rate of pesticides and reduce the harm to operators.
The invention also provides application of the insecticidal composition in prevention and treatment of thrips pests.
The invention also provides application of the pesticide in prevention and treatment of thrips pests.
The insecticidal composition provided by the invention can be provided in the form of a finished product of a composite preparation, or each component can be provided in the form of a separate preparation and is mixed uniformly before use.
The nematicidal composition or pesticide is applied by dilution and spraying, and the application amount and dilution ratio of the nematicidal composition or pesticide are changed along with the change of biological characteristics or environmental conditions of the control object.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to better illustrate the invention, the following examples are given by way of further illustration.
Example 1
This example provides an insecticidal suspension:
according to methylamino avermectin B2aThe mass percentage of benzoate, pleocidin and stevioside is 40:1: 0.5. Taking methylamino emamectin B2a40% of benzoate, 1.0% of spinosad, 2.0% of block polyether, 3.5% of alkylphenol polyoxyethylene ether phosphate, 0.3% of xanthan gum, 5.0% of ethylene glycol, 0.2% of magnesium aluminum silicate, 0.5% of stevioside and deionized water to make up to 100%. The components are uniformly mixed and ground by a grinding machine to obtain the insecticidal suspending agent.
Example 2
This example provides an insecticidal microemulsion:
according to methylamino avermectin B2aThe mass percentage of benzoate, pleocidin and stevioside is 33:2: 0.1. Taking methylamino emamectin B2a33.0% of benzoate, 2.0% of spinosad, 10.0% of phenethyl phenol polyoxyethylene ether phosphate, 10.0% of nonylphenol polyoxyethylene ether, 25.0% of sec-butyl acetate, 5.0% of N, N-dimethylformamide, 0.1% of stevioside and deionized water to make up to 100%.
Mixing methylamino emamectin B2aUniformly mixing benzoate, spinosad, sec-butyl acetate, N-dimethylformamide, nonylphenol polyoxyethylene ether and phenethyl phenol polyoxyethylene ether phosphate to obtain an oil phase; dissolving stevioside in deionized water to obtain a water phase; and adding the water phase into the oil phase under the condition of stirring, and uniformly mixing to obtain the insecticidal microemulsion.
Example 3
This example provides a pesticidal microcapsule suspension:
according to methylamino avermectin B2aThe mass percentage of benzoate, pleocidin and stevioside is 10:10: 0.8. Taking emamectin benzoate B2a, pleocidin 10.0%, and naphthalenesulfonate2.0 percent, 4.0 percent of nonylphenol polyoxyethylene ether, 20.0 percent of sec-butyl acetate, 8.0 percent of solvent oil, 0.3 percent of organic silicon, 0.3 percent of xanthan gum, 1.0 percent of triethanolamine, 4.0 percent of polyisocyanate, 2.0 percent of glycol, 0.2 percent of sodium benzoate, 0.8 percent of stevioside and deionized water to complement to 100 percent.
The preparation process comprises the following steps:
dissolving emamectin benzoate B2a and spinosad with sec-butyl acetate and solvent oil respectively, adding polyisocyanate and naphthalenesulfonate, and uniformly stirring to obtain an oil phase;
adding nonylphenol polyoxyethylene ether, sodium benzoate and organic silicon into deionized water to obtain a water phase;
step three, adding the oil phase into the water phase under stirring to obtain an oil-in-water emulsion;
and step four, adding triethanolamine into the oil-in-water emulsion under stirring, stirring for 1-2 hours at 55-65 ℃, adding ethylene glycol, xanthan gum and stevioside, and mixing and stirring to obtain the insecticidal microcapsule suspending agent.
Example 4
The embodiment provides an insecticidal water dispersible granule:
according to methylamino avermectin B2aThe mass percentage of benzoate, pleocidin and stevioside is 4:21: 1.0. Taking methylamino abamectin B2a4.0% of benzoate, 21.0% of spinosad, 7.0% of polyvinylpyrrolidone, 2.5% of sodium dodecyl benzene sulfonate, 7.0% of polycarboxylate, 12.0% of corn starch, 0.2% of magnesium aluminum silicate, 1.0% of stevioside and 100% of kaolin.
The preparation process comprises the following steps: the components are uniformly mixed, are crushed into wettable powder through airflow, are added with water to be mixed, extruded and granulated, and are dried and screened to obtain the water dispersible granule.
Example 5
This example provides a pesticidal microcapsule suspension:
according to methylamino avermectin B2aThe mass percentage of benzoate, pleocidin and stevioside is 1:40: 0.6.Taking methylamino abamectin B2a1.0% of benzoate, 40.0% of spinosad, 2.5% of sodium dodecyl benzene sulfonate, 2.5% of nonylphenol polyoxyethylene ether, 18.0% of solvent oil, 0.3% of organic silicon, 0.5% of chitosan, 2.5% of isopropylamine, 5.0% of aliphatic isocyanate, 2.0% of ethylene glycol, 0.2% of sodium benzoate, 0.6% of stevioside and deionized water to complement to 100%.
The preparation process comprises the following steps:
dissolving emamectin benzoate B2a and spinosad in solvent oil, adding aliphatic isocyanate and sodium dodecyl benzene sulfonate, and uniformly stirring to obtain an oil phase;
adding nonylphenol polyoxyethylene ether, chitosan, sodium benzoate and organic silicon into deionized water to obtain a water phase;
step three, adding the oil phase into the water phase under stirring to obtain an oil-in-water emulsion;
and step four, adding isopropylamine into the oil-in-water emulsion under stirring, stirring for 1-2h at 55-65 ℃, adding ethylene glycol and stevioside, and mixing and stirring to obtain the insecticidal microcapsule suspending agent.
The insecticidal composition provided by the invention can be prepared into other formulations such as emulsion in water, wettable powder, missible oil or granules by selecting conventional auxiliary materials in the field of pesticides according to a conventional process, and other formulations with the same effective component content can achieve the insecticidal effect basically the same as the formulations in examples 1-5.
Comparative examples 1 to 5
Comparative examples 1 to 5 the same raw materials and preparation methods as those of examples 1 to 5 were used, except that the steviol glycosides of examples 1 to 5 were replaced with the same amount of deionized water to prepare the corresponding insecticides.
Comparative example 6
This comparative example used the same raw materials and preparation methods as example 4, except that spinosad was replaced with emamectin B in equal weight2aBenzoate to obtain the insecticidal water dispersible granule.
Comparative example 7
Book pairThe same raw materials and preparation method as in example 4 were used in the same proportions except that emamectin B was added2aAnd replacing benzoate with spinosad with equal weight to obtain the insecticidal water dispersible granule.
Comparative example 8
This comparative example uses the same starting materials and preparation as in example 4, except that amino abamectin B is added2aAnd replacing benzoate and spinosad with stevioside with equal weight to obtain the insecticidal water dispersible granule.
Comparative example 9
The comparative example adopts the same raw materials and preparation method as the example 4, except that the spinosad is replaced by sulfoxaflor with the same weight to obtain the insecticidal water dispersible granule.
Comparative example 10
The comparative example adopts the same raw materials and preparation method as those in example 4, except that the spinosad is replaced by sulfoxaflor with equal weight, and the stevioside is replaced by deionized water with equal weight, so that the insecticidal water dispersible granule is obtained.
Comparative example 11
The comparative example adopts the same raw materials and preparation method as those in example 4, except that stevioside is replaced by astragalus polysaccharide with the same weight to obtain the insecticidal water dispersible granule.
Comparative example 12
This comparative example used the same raw materials and preparation methods as example 4, except that steviol glycosides and spinosad were replaced with emamectin benzoate B of equal weight2aBenzoate to obtain the insecticidal water dispersible granule.
Comparative example 13
This comparative example uses the same raw materials and preparation method as example 4, except that steviol glycoside and emamectin B are added2aAnd replacing benzoate with spinosad with equal weight to obtain the insecticidal water dispersible granule.
In order to determine the insecticidal effect of the product, a field efficacy test is carried out.
Combined virulence assay
Amino abamectin B2aThe toxicity of benzoate and spinosad original drugs on the peashrub thrips is respectively measured, the single-dose and compound-dose experimental liquid medicines are respectively diluted into five series of concentrations, and the five series concentrations are respectively placed in beakers for standby. The method comprises the steps of soaking leaves firstly and then inoculating insects, soaking the leaves which are not contacted with any medicament and have the same size in prepared liquid medicine for 5s, taking out the leaves, naturally airing the leaves, putting the leaves into an insect breeding box, inoculating test larvae, breeding the larvae at 25 ℃, repeating the treatment for 3 times, wherein the number of the test insects used in each repetition is 50, simultaneously setting a blank control, checking the number of dead insects in 72 hours, calculating the death rate and correcting the death rate, solving a toxicity regression equation and calculating an LC50 value to evaluate the insecticidal activity of each medicament. And calculating the co-toxicity coefficient (CTC value) of the mixture according to the Suyupei method. The co-toxicity coefficient is calculated as follows:
measured virulence index (ATI) ═ standard medicament LC 50/test medicament LC50 × 100
Theoretical virulence index (TTI) ═ A agent ATI × percentage of A in the mixture + B agent ATI × percentage of B in the mixture
Co-toxicity coefficient (CTC) ═ measured toxicity index (ATI) of the mixture/Theoretical Toxicity Index (TTI) of the mixture x 100
When the CTC is less than or equal to 80, the composition shows antagonism, when the CTC is more than 80 and less than 120, the composition shows additive action, and when the CTC is more than or equal to 120, the composition shows synergistic action.
TABLE 1 Combined virulence determination of the individual and combination Agents against Cynara cardunculus
Figure BDA0002500176280000091
Figure BDA0002500176280000101
The combined virulence test results in the table above show that emamectin B2aThe co-toxicity coefficient CTC of the compound of benzoate and pleocidin for the joint toxicity determination of the green pea thrips in the range of the mixture ratio of 40:1-1:40 is more than 130, has synergistic effect. Wherein the emamectin B2aWhen the weight ratio of the benzoate to the spinosad is 10:1-1:10, the co-degree coefficients are all more than 200, and the synergistic effect is obvious.
Application example prevention and treatment of Glycine max thrips
The insecticides prepared in the above examples and comparative examples were subjected to a field efficacy test for controlling kidney bean thrips, which was conducted in a test field in bosu county, huizhou, guangdong. The experiment is totally provided with 18 treatments and simultaneously provided with 1 blank control, each treatment is provided with 4 times of repetition, each repetition is a cell, the cells are randomly arranged, and the area of each cell is 30m2The planting habits in all test intervals were the same as the local planting habits. The number of the worm mouths is investigated 6 times before the application, the number of the survival worms is investigated 3d, 7d, 15d, 30d and 60d after the application in 17 am 6 months and 6 months in 2019, and the result is shown in table 2 by adopting a Duncan type new repolarization test method (DMRT).
TABLE 2 field control Effect of the insecticides prepared in the examples and comparative examples on thrips capsici
Figure BDA0002500176280000102
Figure BDA0002500176280000111
As can be seen from the comparison of the data of examples 1-5 and comparative examples 1-13 in Table 2, the use of steviol glycoside alone has no control effect on thrips leguminous and is combined with emamectin B2aAfter the benzoate or the pleocidin are compounded, a certain synergistic effect is shown on the kidney bean thrips. But emamectin B2aAfter the benzoate, the pleocidin and the stevioside are compounded and used, the inactivating effect on the pea thrips shows very obvious synergistic effect, and the synergistic effect is far superior to that of emamectin B2aA binary combination of benzoate and spinosad. And after the spinosad is replaced by sulfoxaflor, emamectin benzoateB2aThe binary combination of benzoate and sulfoxaflor has no synergistic effect on the peashrub and the emamectin benzoate B2aThe ternary combination of benzoate, sulfoxaflor and stevioside also has no obvious synergistic effect on the pea thrips. After the stevioside is replaced by the astragalus polysaccharide, the control effect on the pea thrips is obviously reduced, and the emamectin B2aControl effect of benzoate, pleocidin, stevioside and astragalus polysaccharide and emamectin benzoate B2aThe control effect of the binary combination of benzoate and spinosad is basically equivalent, which shows that the astragalus polysaccharide has the same effect on emamectin benzoate B2aBenzoate and spinosad have no synergistic effect.
Test results show that the ternary compound insecticidal composition has good effect of preventing and treating the kidney bean thrips, has obvious synergistic effect, prolongs the lasting period and improves the utilization rate of effective components.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. An insecticidal composition for preventing and treating thrips pests is characterized in that the effective component of the insecticidal composition comprises emamectin benzoate B2aBenzoate and spinosad, and the synergist comprises stevioside; the emamectin B2aThe mass ratio of the benzoate to the spinosad to the stevioside is 1-40:1-40: 0.1-1.
2. An insecticidal composition according to claim 1 wherein emamectin B2aThe mass ratio of the benzoate to the spinosad to the stevioside is 1-10:1-10: 0.4-0.6.
3. A pesticide for controlling thrips pests, characterized by comprising the pesticidal composition for controlling thrips pests according to any one of claims 1 to 2.
4. The insecticide for controlling thrips pests according to claim 3, further comprising an adjuvant, said emamectin B2aThe total mass of benzoate, spinosad and stevioside accounts for 2.1-81 wt% of the pesticide.
5. A pesticidal agent for controlling thrips pests according to claim 4, wherein the adjuvant comprises at least one of a co-solvent, a dispersant, a wetting agent, a defoaming agent, a disintegrating agent, a thickener or a filler.
6. The insecticide for controlling thrips pests according to claim 3, wherein the formulation of the insecticide is microcapsule suspension, suspension seed coating, aqueous emulsion, microemulsion, emulsifiable concentrate, wettable powder, water dispersible granule or granule.
CN202010429939.5A 2020-05-20 2020-05-20 Insecticidal composition and preparation and application thereof Active CN111466396B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010429939.5A CN111466396B (en) 2020-05-20 2020-05-20 Insecticidal composition and preparation and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010429939.5A CN111466396B (en) 2020-05-20 2020-05-20 Insecticidal composition and preparation and application thereof

Publications (2)

Publication Number Publication Date
CN111466396A CN111466396A (en) 2020-07-31
CN111466396B true CN111466396B (en) 2021-09-10

Family

ID=71763446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010429939.5A Active CN111466396B (en) 2020-05-20 2020-05-20 Insecticidal composition and preparation and application thereof

Country Status (1)

Country Link
CN (1) CN111466396B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114521551A (en) * 2022-02-23 2022-05-24 青岛润农化工有限公司 Suspending agent containing spinosad and emamectin benzoate and preparation method thereof
CN116491516A (en) * 2023-03-02 2023-07-28 河北威远生物化工有限公司 Emamectin benzoate B 2a Application of salt compound thereof in preparation of medicine for promoting plant growth

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105104393A (en) * 2015-08-31 2015-12-02 河北中天邦正生物科技股份公司 Pesticide composition and application thereof
CN108703145A (en) * 2018-08-08 2018-10-26 河北威远生物化工有限公司 A kind of nematicidal composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105104393A (en) * 2015-08-31 2015-12-02 河北中天邦正生物科技股份公司 Pesticide composition and application thereof
CN108703145A (en) * 2018-08-08 2018-10-26 河北威远生物化工有限公司 A kind of nematicidal composition

Also Published As

Publication number Publication date
CN111466396A (en) 2020-07-31

Similar Documents

Publication Publication Date Title
CN102771510B (en) Insecticidal composition containing fosthiazate
CN111466396B (en) Insecticidal composition and preparation and application thereof
CN101700024A (en) Synergistic pesticide composition and application thereof
CN103155936A (en) Plant disease control composition containing phenazino-1-carboxylic acid
CN101642117A (en) Pesticidal composition with synergistic effect
CN113812414A (en) Pesticide composition containing spirotetramat and flonicamid
CN106857581B (en) Nematicidal composition containing trifluromiazinamide
CN103598198B (en) A kind of triazole type and nicotine compound compound seed treating agent and preparation method thereof
CN102696655B (en) Compound pesticide composition containing spirodiclofen and preparation thereof
CN116210712B (en) Insecticidal composition containing diafenthiuron and application thereof
CN101642108A (en) Pesticidal composition with synergistic effect
CN115211427B (en) Insecticidal composition containing mesoionic insecticide and application thereof
CN115176805B (en) Pesticide composition containing spiromesifen and application thereof
CN111066798A (en) Pesticide composition containing cyclic bromoantraniliprole and matrine
CN103609585B (en) Composite pesticide composition containing spirodiclofen and clothianidin and preparation thereof
CN108849961A (en) Composition pesticide containing pyridine quinazoline
CN109042715A (en) One kind is containing double third ring worm esters and four chlorantraniliprole compositions
CN112314630A (en) Insecticidal composition for preventing and treating cabbage loopers
CN113229290A (en) Insecticidal composition containing buprofezin, chlorfenapyr and dinotefuran and application thereof
CN103609586B (en) Composite pesticide composition containing spirodiclofen and dinotefuran and preparation thereof
CN111165503A (en) Pesticide composition containing fluxapyroxad and rotenone
CN111011391A (en) Composite insecticidal composition and application thereof
CN110959627A (en) Pesticide composition and application thereof
CN110583701A (en) Beauveria bassiana and bacterium compound pesticide for killing spodoptera frugiperda
CN105532736B (en) A kind of composition pesticide and its application

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant