CN112640899B - Microsphere-containing pesticide synergist, preparation and application thereof - Google Patents
Microsphere-containing pesticide synergist, preparation and application thereof Download PDFInfo
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- CN112640899B CN112640899B CN202011501202.6A CN202011501202A CN112640899B CN 112640899 B CN112640899 B CN 112640899B CN 202011501202 A CN202011501202 A CN 202011501202A CN 112640899 B CN112640899 B CN 112640899B
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- 239000003175 pesticide synergist Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title description 8
- 239000007900 aqueous suspension Substances 0.000 claims abstract description 30
- 239000002917 insecticide Substances 0.000 claims abstract description 30
- 239000003814 drug Substances 0.000 claims abstract description 26
- 241000607479 Yersinia pestis Species 0.000 claims abstract description 18
- 229930182478 glucoside Natural products 0.000 claims abstract description 9
- -1 maltooligosaccharide glucoside Chemical class 0.000 claims abstract description 9
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 9
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 9
- BHIZVZJETFVJMJ-UHFFFAOYSA-N 2-hydroxypropyl dodecanoate Chemical compound CCCCCCCCCCCC(=O)OCC(C)O BHIZVZJETFVJMJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 8
- 229920000056 polyoxyethylene ether Polymers 0.000 claims abstract description 8
- 229940026235 propylene glycol monolaurate Drugs 0.000 claims abstract description 8
- CXEGAUYXQAKHKJ-NSBHKLITSA-N emamectin B1a Chemical compound C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](NC)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 CXEGAUYXQAKHKJ-NSBHKLITSA-N 0.000 claims description 24
- 239000000575 pesticide Substances 0.000 claims description 23
- 239000002994 raw material Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- WPALTCMYPARVNV-UHFFFAOYSA-N tolfenpyrad Chemical compound CCC1=NN(C)C(C(=O)NCC=2C=CC(OC=3C=CC(C)=CC=3)=CC=2)=C1Cl WPALTCMYPARVNV-UHFFFAOYSA-N 0.000 claims description 11
- 229940079593 drug Drugs 0.000 claims description 10
- 241001414989 Thysanoptera Species 0.000 claims description 9
- 239000002518 antifoaming agent Substances 0.000 claims description 9
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- 238000009736 wetting Methods 0.000 claims description 9
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- 239000012141 concentrate Substances 0.000 claims description 7
- 230000002335 preservative effect Effects 0.000 claims description 7
- 150000005846 sugar alcohols Polymers 0.000 claims description 7
- CWFOCCVIPCEQCK-UHFFFAOYSA-N chlorfenapyr Chemical compound BrC1=C(C(F)(F)F)N(COCC)C(C=2C=CC(Cl)=CC=2)=C1C#N CWFOCCVIPCEQCK-UHFFFAOYSA-N 0.000 claims description 6
- 241001414720 Cicadellidae Species 0.000 claims description 5
- WOWBFOBYOAGEEA-UHFFFAOYSA-N diafenthiuron Chemical compound CC(C)C1=C(NC(=S)NC(C)(C)C)C(C(C)C)=CC(OC=2C=CC=CC=2)=C1 WOWBFOBYOAGEEA-UHFFFAOYSA-N 0.000 claims description 5
- 239000004557 technical material Substances 0.000 claims description 4
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- 231100000674 Phytotoxicity Toxicity 0.000 description 3
- 241000220317 Rosa Species 0.000 description 3
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- 230000005540 biological transmission Effects 0.000 description 3
- 230000000857 drug effect Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 230000000361 pesticidal effect Effects 0.000 description 3
- 206010059866 Drug resistance Diseases 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 235000009024 Ceanothus sanguineus Nutrition 0.000 description 1
- 241000132536 Cirsium Species 0.000 description 1
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- 239000003906 humectant Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 235000013311 vegetables Nutrition 0.000 description 1
Classifications
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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
- A01N25/30—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 characterised by the surfactants
-
- 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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
-
- 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
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- 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
- 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
- A01N47/08—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 one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
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- 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)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a pesticide synergist which comprises the following components in percentage by weight: 30-50% of microsphere polymethyl methacrylate; 20-30% of maltooligosaccharide glucoside and 10-20% of propylene glycol monolaurate; 5-10% of polyol polyoxyethylene ether. The invention also provides an aqueous suspension prepared from the microsphere insecticide synergist and application thereof. The invention provides a microsphere pesticide synergist, which has excellent spreading, absorption conductivity, moisture retention, viscoelastic adhesion, mild safety performance and excellent performance in the using process, the synergist can form an adhesion film on crop leaves, and has the moisture retention effect, so that the retention time of a liquid medicine is prolonged, the contact probability of pests is increased, and after the pests contact the liquid medicine, the liquid medicine is driven to rapidly enter the body surface of the pests under the promotion action of the absorption conductivity and the transdermal penetration of the microspheres to play a role in killing the pests.
Description
Technical Field
The invention relates to the field of pesticide adjuvants, and particularly relates to a microsphere-containing pesticide synergist, a preparation and application thereof.
Background
The emamectin benzoate is widely used for preventing and controlling various pests on crops such as vegetables, fruit trees, cotton and the like, and has the characteristics of biological pesticides such as super-high efficiency, low toxicity, low residue, no public nuisance and the like. The substance has developed significant resistance to drugs over the years of use.
The tolfenpyrad has a novel action mode, has an action mechanism of inhibiting electronic transmission in the respiration process so as to inhibit electronic transmission and prevent insects from providing and storing energy, is called mitochondrial electronic transmission complex inhibitor, has a unique action mechanism and mode, has no cross resistance with the commonly used insecticides on the market, and is a weapon for solving resistant insects such as thrips, diamond back moths and the like.
The combination of the emamectin benzoate and the tolfenpyrad is a specific and excellent combination, the insecticidal effect can be obviously improved for expanding the insecticidal spectrum, the drug resistance of the emamectin benzoate is solved by adding a proper synergist, and the pest control effect of the combination of the emamectin benzoate and the tolfenpyrad is improved.
Disclosure of Invention
Aiming at the defects and problems in the prior art, the invention aims to provide a microsphere-containing pesticide synergist, a preparation method thereof and application thereof in a emamectin benzoate and tolfenpyrad combined aqueous suspension agent.
The invention is realized by the following technical scheme:
the invention provides a microsphere-containing pesticide synergist, which comprises the following components in percentage by weight: 30-50% of microsphere polymethyl methacrylate; 20-30% of maltooligosaccharide glucoside and 10-20% of propylene glycol monolaurate; 5-10% of polyol polyoxyethylene ether.
Preferably, the microsphere-containing pesticide synergist consists of the following components in percentage by weight: microsphere polymethyl methacrylate 45%; 30% of maltooligosaccharide glucoside and 20% of propylene glycol monolaurate; 5% of polyhydric alcohol polyoxyethylene ether.
The pesticide synergist disclosed by the invention has the following effects of effective components:
the microsphere polymethyl methacrylate is a microsphere structure, is an ultrafine regular sphere, can endow the product with excellent spreadability, is adhered to crop leaves, and resists rain wash;
the maltooligosaccharide glucoside is formed by fermenting plants, is natural and close to the crops, is mild, safe and harmless to the crops, reduces the occurrence of phytotoxicity, is a very excellent moisturizing component, has longer moisturizing time compared with the conventional moisturizing agents such as glycerol, glycol and urea, has a synergistic effect with glycerol, further improves the moisturizing degree, has strong anti-transpiration capability, can more fully exert the utilization rate of the liquid medicine, and reduces the loss rate of the liquid medicine;
the propylene glycol monolaurate is a good transdermal absorption enhancer and has the effect of penetration enhancement, and when the liquid medicine contacts pests, the liquid medicine can quickly permeate through the surfaces of the pests and act on the bodies of the pests, so that the effects of quickly killing and knocking down the pests are achieved;
the polyalcohol polyoxyethylene ether is a humectant containing polyalcohol, and can be used for synergistic interaction with bud oligosaccharide glucoside.
The invention also provides an aqueous suspension prepared from the microsphere insecticide synergist, which is prepared from the following raw materials in percentage by weight: 1-50% of raw medicine; 5-8% of a wetting dispersing auxiliary agent; 10-30% of the microsphere-containing pesticide synergist; 0.1-0.4% of defoaming agent; 0.5-2% of a thickening agent; 0.1-0.2% of preservative; the balance of water, and the sum of the weight percentages of the raw materials is 100 percent.
The wetting and dispersing aids, antifoaming agents, thickeners, preservatives and other auxiliary aids required for the aqueous suspension concentrate are known, and are various kinds of aids commonly used in pesticide preparations, and may be changed depending on the circumstances, and are not particularly limited.
Further, the raw medicines are first raw medicines, or the first raw medicines and the second raw medicines are combined; wherein the first technical material is emamectin benzoate; the second technical material is at least one of tolfenpyrad, chlorfenapyr and diafenthiuron.
The invention also provides application of the water suspension agent prepared by the microsphere pesticide synergist, which is used for controlling crop pests, including but not limited to diamondback moth, flea beetle, thrips and tea leafhopper.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides a microsphere pesticide synergist, which has excellent spreading, absorption conductivity, moisture retention, viscoelastic adhesion, mild safety performance and excellent performance in the using process, the synergist can form an adhesion film on crop leaves, and has the moisture retention effect, so that the retention time of a liquid medicine is prolonged, the contact probability of pests is increased, and after the pests contact the liquid medicine, the liquid medicine is driven to rapidly enter the body surface of the pests under the promotion action of the absorption conductivity and the transdermal penetration of the microspheres to play a role in killing the pests.
(2) The microsphere polymethyl methacrylate in the microsphere insecticide synergist can be uniformly spread on the surface of crop leaves due to the structural characteristics of the microsphere insecticide synergist to form a firm surface film adhered to the leaves, and other components can form a good synergistic effect after being screened through multiple tests, so that the microsphere insecticide synergist is a property which cannot be possessed by other insecticide synergists, and the other components are not possessed by other products, namely the synergist is a plant-related, mild and safe synergist derived from plant fermentation, cannot cause phytotoxicity to sensitive crops, and avoids loss caused by normal use of farmers, and is safe and green.
(3) The microsphere pesticide synergist provided by the invention has obvious synergistic performance when being applied to emamectin benzoate and a composite water suspension preparation thereof in controlling resistant pests, solves the problem of drug resistance of the emamectin benzoate produced by years of use, can reduce the dosage of liquid medicine, improves the utilization rate of the liquid medicine, responds to national pesticide policies, reduces the dosage of the pesticide and achieves the yield-keeping effect, emphasizes on the improvement of the quality of agricultural products by using safe medicine temperature and the safe synergist, and realizes green control.
Detailed Description
In order to better explain the problems to be solved, the technical solutions adopted and the beneficial effects achieved by the technical solutions of the present invention, further description will be given with reference to specific embodiments. It should be noted that the technical solutions of the present invention include, but are not limited to, the following embodiments.
The specific techniques or conditions not specified in the examples of the present invention are performed according to the techniques or conditions described in the literature in the art or according to the product specification. The reagents or instruments used are not indicated by manufacturers, and are all conventional products which can be obtained by commercial purchase and the like.
EXAMPLE one preparation of a microsphere pesticide synergist
Under the condition that the temperature of a reaction bottle is 40-60 ℃, microspheres polymethyl methacrylate (A), malto-oligosaccharide glucoside (B), propylene glycol monolaurate (C) and polyhydric alcohol polyoxyethylene ether (D) in different weight percentages shown in the table 1 are added into the reaction bottle in sequence, and are mixed and stirred uniformly to obtain the microsphere pesticide synergist.
TABLE 1 microsphere insecticide synergists prepared in different weight percentages
EXAMPLE use of aqueous suspension concentrate
The microsphere insecticide synergists (1) to (6) prepared in example 1 were formulated with the technical grade and various adjuvants in weight percent into an aqueous suspension.
An aqueous suspension prepared from microsphere insecticide synergist, which is prepared from the following raw materials in percentage by weight: 1-50% of raw medicine; 5-8% of a wetting dispersing auxiliary agent; 10-30% of the microsphere-containing pesticide synergist; 0.1-0.4% of defoaming agent; 0.5-2% of a thickening agent; 0.1-0.2% of preservative; the balance of water, and the sum of the weight percentages of the raw materials is 100 percent.
The wetting and dispersing aids, antifoaming agents, thickeners, preservatives and other auxiliary aids required for the aqueous suspension concentrate are known, and are various kinds of aids commonly used in pesticide preparations, and may be changed depending on the circumstances, and are not particularly limited. The raw pesticide is emamectin benzoate, or the combination of the emamectin benzoate and at least one of tolfenpyrad, chlorfenapyr and diafenthiuron.
The water suspending agent added with the microsphere insecticide synergist is applied to the control of tea leafhoppers on cabbage diamondback moths, rose flower thrips, cowpea thrips and tea trees.
Application example 15.7% application of emamectin benzoate aqueous suspension
An aqueous suspension containing a microsphere insecticide synergist is prepared from the following raw materials in percentage by weight: 5.7 percent of emamectin benzoate; 5% of wetting dispersing auxiliary agent; 15% of any of the microsphere insecticide synergists (1) to (6); 0.1% of defoaming agent; 0.5% of thickening agent; 0.1% of preservative; the balance of water, and the sum of the weight percentages of the raw materials is 100 percent. Aqueous suspensions to which 15% of the respective microsphere insecticide synergists (1) to (6) were added were used as the working groups 1-1 to 1-6, while aqueous suspensions to which no microsphere insecticide synergist was added were prepared as the comparative group 1.
The seven groups of emamectin benzoate aqueous suspension are applied to control of cabbage diamondback moths, and specific tests show that the cabbage diamondback moths are developed from 6 and 10 months in 2019 to Wanjiacun in the southern Chang city of Jiangxi province, the cabbage diamondback moths are serious, the weather is mainly fine or cloudy during the test, and no precipitation process exists. Repeat 4 times per treatment, 20m per cell2For 1 replicate, each cell was randomly arranged and evenly sprayed with a conventional sprayer. The treatment agents required for this test were all provided by the Ministry of crops from Zhengbang.
The test method refers to the national standard pesticide field test criterion GB/T17980.13-2000 of the people's republic of China, the base number before pesticide application is investigated, five points of each cell are sampled, 5 plants are marked at each point, and the number of live insects on all the plants in each marked point is counted. After the pesticide is applied, the number of residual live insects is checked in 1d, 3d, 7d and 15d, whether the residual live insects have phytotoxicity is observed, and the reduction rate of insect population and the control effect are calculated. The cells adopt a random block design, one cell is used as one repetition, each medicament treatment is repeated for 4 times, and the control effect is shown in the following table 2.
The drug effect calculation method comprises the following steps:
the reduction rate (%) of the population is (number of population before the drug-number of remaining live insects)/total number of insects before the drug x 100;
control effect (%) (treatment area oral cavity decline rate-control area oral cavity decline rate)/(100-control area oral cavity decline rate) × 100.
Table 2 comparison table of control effect of this example 1 on cabbage diamondback moth
And (4) experimental conclusion: under the condition of ensuring the qualified performance of the pesticide-assisting synergist, the pesticide-assisting synergist is directly observed in the field for controlling pests, the mass percentage of each component in the four kinds of mutual-matching assistants is further screened in detail, according to the experimental result, the mass percentage range of the assistant A, B, C, D is correspondingly reduced, when the microsphere polymethyl methacrylate is 30-50%, the maltooligosaccharide glucoside is 20-30%, the propylene glycol monolaurate is 10-20%, and the polyhydric alcohol polyoxyethylene ether is 5-10%, the synergistic effect of the synergist on the pesticide is more obvious, and the control effect is obviously increased after 15 days of pesticide application.
Application example 22% emamectin benzoate and 10% tolfenpyrad in combination with aqueous suspension
An aqueous suspension containing a microsphere insecticide synergist is prepared from the following raw materials in percentage by weight: 2% of emamectin benzoate and 10% of tolfenpyrad are combined; 6.5 percent of wetting dispersing auxiliary agent; microsphere insecticide synergist (3) or (4) or (6) 15%; 0.2 percent of defoaming agent; 1% of a thickening agent; 0.15% of preservative; the balance of water, and the sum of the weight percentages of the raw materials is 100 percent. An aqueous suspension to which 15% of the microsphere insecticide synergist (3) or (4) or (6) was added was used as the working group 2-1, 2-2, 2-3, while an aqueous suspension without microsphere insecticide synergist was prepared as the comparative group 2, and the treatment agents required for this test were provided by the institute for crops, just pont.
The four groups of 2% emamectin benzoate and 10% tolfenpyrad combined water suspending agents are applied to control cowpea thistle immediately, the concrete test is carried out in Guangxi Hepu, the weather on the test day is good, no rainfall occurs, and the daily average temperature is 24-32 ℃. The investigation method comprises the steps of randomly investigating the total number of thrips in 60 flowers at the middle upper part of a cowpea plant in each cell, investigating when the flowers bloom in the morning, investigating the population base number before applying pesticide, investigating the number of residual insects after each treatment at 1d, 3d, 7d and 15d after applying pesticide, calculating the population decline rate and the prevention and treatment effect, and repeating each treatment three times, wherein the prevention and treatment effect is shown in the following table 3. The drug effect calculation method comprises the following steps:
the reduction rate (%) of the population is (number of population before the drug-number of remaining live insects)/total number of insects before the drug x 100;
control effect (%) (treatment area oral cavity decline rate-control area oral cavity decline rate)/(100-control area oral cavity decline rate) × 100.
Table 3 the experimental results of this example 2 applied to cowpea thrips prevention and cure
And (4) experimental conclusion: the pesticide synergist (3), (4) and (6) is added into 12 percent of emamectin benzoate and tolfenpyrad SC, and the pesticide effect of the synergist (4) in the optimal scheme can be improved by 21.19 percent on the 1 st day, 19.59 percent on the 3 rd day, 25.23 percent on the 7 th day and 23.79 percent on the 15 th day compared with the pesticide without the synergist.
Application example 31.4% of emamectin benzoate and 42.3% of diafenthiuron are combined with the application of the suspension concentrate
An aqueous suspension containing a microsphere insecticide synergist is prepared from the following raw materials in percentage by weight: 1.4 percent of emamectin benzoate and 42.3 percent of diafenthiuron are used together; 8% of wetting dispersing auxiliary agent; microsphere insecticide synergist (3) or (4) or (6) 10%; 0.4 percent of defoaming agent; 2% of a thickening agent; 0.2 percent of preservative; the balance of water, and the sum of the weight percentages of the raw materials is 100 percent. The above-mentioned aqueous suspension concentrate to which 10% of the synergist for microsphere insecticides (3) or (4) or (6) was added was used as the working group 3-1, 3-2, 3-3, while an aqueous suspension concentrate to which no synergist for microsphere insecticides was added was prepared as the comparative group 3. The treatment agents required for this test were all provided by the Ministry of crops from Zhengbang.
The four groups of water suspending agents are applied to tea lesser leafhoppers for preventing and controlling tea, tests are carried out on the former ballast of Fuding city in 2019, 5 months and 10 days, the weather is mainly sunny or cloudy during the test, and no precipitation process exists. Repeat 4 times per treatment, 20m per cell2For 1 replicate, each cell was randomly arranged and evenly sprayed with a conventional sprayer. The investigation method is that the population number of 30 bud tips is randomly investigated in each cell before pesticide application as the population base number before pesticide application. The numbers of remaining insects in the respective plots were investigated at 1d, 3d, 7d, and 15d after application, and the control effects after calculation treatment are shown in table 4 below. The control effect calculation method comprises the following steps:
the reduction rate (%) of the population is (number of population before the drug-number of remaining live insects)/total number of insects before the drug x 100;
control effect (%) (treatment area oral cavity decline rate-control area oral cavity decline rate)/(100-control area oral cavity decline rate) × 100.
Table 4 comparison table of experimental results of this example 3 applied to controlling tea lesser leafhopper
And (4) experimental conclusion: 43.7% of emamectin benzoate-diafenthiuron SC is added with microsphere insecticide synergist (3), (4) and (6), and the optimal proposal is that the pesticide effect of the synergist microsphere insecticide synergist (4) can be improved by 17.3% on the 1 st day, 13.48% on the 3 rd day, 18.12% on the 7 th day and 17.86% on the 15 th day.
Application example application of combination of 42% of emamectin benzoate and 10% of chlorfenapyr in water suspension
An aqueous suspension containing a microsphere insecticide synergist is prepared from the following raw materials in percentage by weight: 2% of emamectin benzoate and 10% of chlorfenapyr water suspending agent; 6.0% of wetting dispersing auxiliary agent; microsphere insecticide synergist (3) or (4) or (6) 15%; 0.2 percent of defoaming agent; 1% of a thickening agent; 0.15% of preservative; the balance of water, and the sum of the weight percentages of the raw materials is 100 percent. An aqueous suspension to which 15% of the microsphere insecticide synergist (3) or (4) or (6) was added was used as the working group 4-1, 4-2, 4-3, while an aqueous suspension without microsphere insecticide synergist was prepared as the comparative group 4, and the treatment agents required for this test were provided by the institute for bonito.
The four groups of the water suspending agents are applied to prevention and treatment of thrips on roses, tests are carried out in Mengzhou province in Yunnan, the weather on the test day is good, rainfall does not occur, and the daily average temperature is 24-32 ℃. The investigation method comprises the steps of randomly investigating the total number of thrips in 60 flowers at the middle upper part of the rose in each cell, investigating when the flowers bloom in the morning, investigating the population base number before applying the pesticide, investigating the number of residual insects after each treatment at 1d, 3d, 7d and 10d after applying the pesticide, calculating the population decline rate and the control effect, repeating each treatment for three times, and calculating the control effect after each treatment as shown in the following table 5. The drug effect calculation method comprises the following steps:
the reduction rate (%) of the population is (number of population before the drug-number of remaining live insects)/total number of insects before the drug x 100;
control effect (%) (treatment area oral cavity decline rate-control area oral cavity decline rate)/(100-control area oral cavity decline rate) × 100.
TABLE 5 comparison table of the experimental results of this example 4 for preventing and treating thrips on rose
And (4) experimental conclusion: the microsphere pesticide synergist (3), (4) and (6) is added into 12% of emamectin benzoate and chlorfenapyr SC, and the pesticide effect of the synergist microsphere pesticide synergist (4) in the optimal scheme can be improved by 16.4% on the 1 st day, 12.68% on the 3 rd day, 16.97% on the 7 th day and 17.96% on the 15 th day.
Three experiments of application examples 2, 3 and 4 show that the best effect can be achieved by adding the synergist 4.
The foregoing merely represents preferred embodiments of the invention, which are described in some detail and detail, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (5)
1. A microsphere-containing pesticide synergist, characterized in that said microsphere-containing pesticide synergist consists of, in weight percent: 30-50% of microsphere polymethyl methacrylate, 20-30% of maltooligosaccharide glucoside, 10-20% of propylene glycol monolaurate and 5-10% of polyalcohol polyoxyethylene ether.
2. The microsphere-containing pesticide synergist of claim 1, wherein said pesticide synergist comprises, in weight percent: microsphere polymethyl methacrylate 45%, maltooligosaccharide glucoside 30%, propylene glycol monolaurate 20%, and polyalcohol polyoxyethylene ether 5%.
3. An aqueous suspension prepared from the microsphere insecticide synergist described in claim 1 or 2, wherein: the aqueous suspension is prepared from the following raw materials in percentage by weight: 1-50% of original drug, 5-8% of wetting dispersing auxiliary agent, 10-30% of microsphere-containing pesticide synergist, 0.1-0.4% of defoaming agent, 0.5-2% of thickening agent, 0.1-0.2% of preservative and the balance of water, wherein the sum of the weight percentages of the raw materials is 100%.
4. An aqueous suspension concentrate prepared with a microsphere-containing pesticide synergist according to claim 3 wherein: the raw pesticide is a first raw pesticide, or the first raw pesticide and a second raw pesticide are combined; the first technical material is emamectin benzoate, and the second technical material is at least one of tolfenpyrad, chlorfenapyr and diafenthiuron.
5. Use of an aqueous suspension concentrate prepared with a microsphere-containing pesticide synergist according to claim 4 wherein: the suspension concentrate prepared from the microsphere-containing pesticide synergist is used for preventing and controlling one or more crop pests on diamondback moth, flea beetle, thrips or tea leafhopper.
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