CN114208840A - Emamectin benzoate indoxacarb suspending agent and preparation method thereof - Google Patents

Emamectin benzoate indoxacarb suspending agent and preparation method thereof Download PDF

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Publication number
CN114208840A
CN114208840A CN202111664936.0A CN202111664936A CN114208840A CN 114208840 A CN114208840 A CN 114208840A CN 202111664936 A CN202111664936 A CN 202111664936A CN 114208840 A CN114208840 A CN 114208840A
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indoxacarb
emamectin benzoate
sodium
butyrate
suspending agent
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CN202111664936.0A
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车鈜
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Trust Crop Protection Technology Co ltd
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Trust Crop Protection Technology Co ltd
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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
    • A01N47/08—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<
    • A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
    • 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
    • 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
    • A01N25/08—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 solids as carriers or diluents
    • 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
    • A01N43/14—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 six-membered rings
    • A01N43/16—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 six-membered rings with oxygen as the ring hetero atom
    • 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

Abstract

The application relates to the technical field of pesticide preparations, and particularly discloses an emamectin benzoate-indoxacarb suspending agent and a preparation method thereof. The suspending agent comprises the following components: methylamino abamectin benzoate, indoxacarb, a carrier, an inducer, a synergist, an organic solvent, other auxiliaries and the balance of water; wherein the carrier is a mixture of white carbon black and sodium n-butyrate according to a mass ratio of (2-4) to 1. According to the application, the sodium n-butyrate is used for adsorbing effective components, and the white carbon black is used for adsorbing the sodium n-butyrate after the effective components are adsorbed to form drug-loaded particles, so that the dispersion effect and the suspension effect of the effective components in a system are improved, the adhesion effect of the effective components on the surfaces of crops can be effectively improved, and the effect of lasting effect and disinsection is achieved. In the preparation method, the drug-loaded particles are coated by the inducer to form a sticky coating layer, so that the probability of contacting or swallowing the active ingredients by pests is higher under the induction, and the insecticidal efficiency is higher.

Description

Emamectin benzoate indoxacarb suspending agent and preparation method thereof
Technical Field
The application relates to the technical field of pesticide preparations, in particular to an emamectin benzoate-indoxacarb suspending agent and a preparation method thereof.
Background
As a big agricultural country in China, the harvest of crops not only influences the income of agricultural personnel, but also directly concerns the survival problem of people in China, so that the harvest of crops is a crucial part in agriculture in China.
At present, natural disasters and plant diseases and insect pests mainly exist as factors damaging crop harvest, wherein the natural disasters are the ancient and hitherto difficult problems in agricultural production, and the problems in the aspect of rapid development of science and technology are well improved today. The diseases and insect pests are 'stubborn diseases' since the development of agriculture, although the science and technology are improved at present, the variability and diversity of the diseases and insect pests are difficult to solve to date. Although biological control has been primarily successful in pest control, pesticide control remains the primary measure of pest control.
In the related technology, the emamectin benzoate-indoxacarb suspending agent comprises emamectin benzoate and indoxacarb as active ingredients, and an emulsifier, a dispersant, an anti-settling agent, an antifreeze, an antioxidant, a wetting agent, a defoaming agent and an organic solvent are added as functional auxiliaries, and the functional auxiliaries are mixed with water to prepare the emamectin benzoate-indoxacarb suspending agent. The suspending agent has the characteristics of contact poisoning and stomach poisoning on various pests, and has a broad-spectrum insecticidal effect. However, the effective components in the suspending agent are easy to swell in water, and have agglomeration and sedimentation phenomena, and the dispersibility and the suspending effect of the effective components in the system are poor; meanwhile, the suspending agent has poor adhesion effect on crops, so that the insecticidal persistence is poor.
Disclosure of Invention
The application provides an emamectin benzoate-indoxacarb suspending agent and a preparation method thereof, aiming at preparing a suspending agent which has good dispersion effect and suspension effect of active ingredients and has a lasting insecticidal effect.
In a first aspect, the application provides an emamectin benzoate-indoxacarb suspending agent, which adopts the following technical scheme:
a emamectin benzoate-indoxacarb suspending agent comprises the following components in percentage by mass: 3-6% of emamectin benzoate, 10-15% of indoxacarb, 1-3% of carrier, 0.2-0.6% of inducer, 0.5-1% of synergist, 5-10% of organic solvent, 4-9% of other auxiliary agents and the balance of water;
wherein the carrier is a mixture of white carbon black and sodium n-butyrate according to a mass ratio of (2-4) to 1.
By adopting the technical scheme, the emamectin benzoate and the indoxacarb are taken as effective components, and the two are compounded with each other, so that the broad-spectrum insecticidal effect is achieved, and the insecticidal efficiency is improved. Simultaneously, the mixture of white carbon black and sodium n-butyrate is used as a carrier, the particle size of the sodium n-butyrate is small and the sodium n-butyrate has a large specific surface area, and the sodium n-butyrate has a special hollow structure, so that the sodium n-butyrate has excellent adsorption performance and can adsorb emamectin benzoate and indoxacarb uniformly. And the sodium n-butyrate has good water solubility and good dispersibility in water, so that the sodium n-butyrate is beneficial to improving the dispersion effect and the suspension effect of the active ingredients in a system. The white carbon black has small particle size, large specific surface area and good dispersion performance in a system, and the unique porous structure of the white carbon black is favorable for the adhesion of sodium n-butyrate after adsorbing effective components to form drug-loaded particles; the dispersion effect and suspension effect of the drug-loaded particles in the system are further improved. The active ingredients take sodium n-butyrate and white carbon black as carriers, the attachment effect on the surfaces of crops after application is better, and the active ingredients are slowly released under the influence of the adsorption effect of the white carbon black, so that the effect of lasting insect killing is favorably achieved. And meanwhile, the sodium n-butyrate and the white carbon black belong to nontoxic and harmless substances, and have small influence on crops and environment.
In addition, the suspending agent has an inducing effect on pests after being applied by adding the inducing agent, namely the suspending agent is beneficial to the pests to actively contact or swallow active ingredients, so that the insecticidal efficiency can be effectively improved. Meanwhile, the pesticide effect of the suspending agent is further improved by adding the synergist, which is beneficial to further improving the pesticide effect.
Preferably, the white carbon black has an average particle size of 40-60 nm, and the sodium n-butyrate has an average particle size of 30-50 μm.
By adopting the technical scheme, the sodium n-butyrate with the average particle size of 30-50 mu m has a good adsorption effect on effective components and a good dispersion effect in a system. The white carbon black with the average particle size of 40-60 nm has a good adsorption effect on sodium n-butyrate after adsorbing effective components, and has a good dispersion effect in a system. And the sodium n-butyrate in the corresponding particle size range is uniformly distributed on the white carbon black in the corresponding particle size range, so that the effective components can be uniformly dispersed in the system, and the suspension effect of the effective components is improved. And the white carbon black within the particle size range has good adhesion effect on the surfaces of crops, and is favorable for improving the durability of insect killing.
Preferably, the inducer is pollen polysaccharide and algal polysaccharide according to the mass ratio (1-2): 1, in a mixture of the components.
By adopting the technical scheme, both the pollen polysaccharide and the algal polysaccharide have better induction effect on pests, and are beneficial to inducing the pests to contact or swallow pesticides, so that the effect of quickly killing the pests is achieved. Meanwhile, the pollen polysaccharide is beneficial to improving the thickness, the flexibility and the chlorophyll content of the leaves of the crops, and can effectively promote the growth of the crops; the algal polysaccharide is helpful for promoting the root development of crops. The two have better promotion effect on the growth of crops while inducing pests, and have better practicability.
Preferably, the synergist is piperonyl butoxide and diethyl maleate in a mass ratio of 1: (1.5-2.8).
By adopting the technical scheme, piperonyl butoxide and diethyl maleate are respectively high-efficiency inhibitors of multifunctional oxidase and glutathione S-transferase, and the multifunctional oxidase and the glutathione S-transferase are main active substances for pests to generate resistance to the active ingredients in the suspending agent. Therefore, piperonyl butoxide and diethyl maleate are used for inhibiting corresponding enzymes, so that the condition that the pests have resistance to the effective components in the suspending agent can be effectively reduced, and the effect of enhancing the pesticide effect is achieved.
Preferably, the other auxiliary agents are a mixture of a surfactant, a defoaming agent, a suspending agent, a thickening agent, an antifreezing agent and a preservative in a mass ratio of 2:1:1:1: 1.
By adopting the technical scheme, other auxiliary agents which are composed according to a certain mass ratio have an improvement effect on the performances of multiple aspects of the suspending agent.
Preferably, the surfactant comprises at least one of polysiloxane, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate.
By adopting the technical scheme, the polysiloxane, the sodium dodecyl sulfate and the sodium dodecyl benzene sulfonate have good wetting, extending and penetrating properties, and are beneficial to improving the remaining amount of the suspending agent on the surfaces of crops, so that the effect of persistent disinsection is achieved.
In a second aspect, the application provides a preparation method of an emamectin benzoate-indoxacarb suspending agent, which adopts the following technical scheme: a preparation method of emamectin benzoate-indoxacarb suspending agent comprises the following steps:
preparing an oil phase: mixing and stirring emamectin benzoate, indoxacarb and an organic solvent to obtain an oil phase after the emamectin benzoate and the indoxacarb are completely dissolved;
preparation of an aqueous phase: mixing and stirring other auxiliary agents and water to prepare a water phase;
mixing and sanding: mixing and stirring the oil phase, the water phase, the carrier, the inducer and the synergist, and sanding to obtain a finished product.
By adopting the technical scheme, the oil phase and the water phase are respectively prepared, then the oil phase and the water phase are mixed and stirred, and the carrier, the inducer and the synergist are added, so that the stability of the suspending agent is improved while the effective components are uniformly dispersed.
Preferably, in the step of mixing and sanding, the oil phase and the carrier are mixed and stirred firstly, then the water phase, the synergist and the inducer are added in sequence and continuously stirred, and a finished product is prepared after sanding.
Through adopting above-mentioned technical scheme, in the mixed sanding step, mix earlier and stir oil phase and carrier, be favorable to the active ingredient in the oil phase to adsorb on the carrier comparatively evenly, then mix with other components, help improving the dispersion homogeneity of active ingredient in the system to help improving the suspension effect of active ingredient.
Preferably, in the step of mixing and sanding, sodium n-butyrate is dissolved in water, the sodium n-butyrate aqueous solution and the oil phase are mixed and stirred, then the white carbon black and the inducer are added for continuous mixing and stirring, then the water phase and the synergist are sequentially added for continuous stirring, and a finished product is prepared after sanding.
By adopting the technical scheme, the sodium n-butyrate aqueous solution and the oil phase are mixed and stirred firstly, so that the effective components are adsorbed on the sodium n-butyrate firstly, and then the sodium n-butyrate with the effective components is adsorbed by using the white carbon black to obtain drug-loaded particles; the inducer is coated on the drug-loaded particles, and is a plant polysaccharide with certain viscosity, so that the inducer is coated on the drug-loaded particles to form a coating layer with viscosity. The pesticide carrying particles carrying the active ingredients can be better adhered to the surfaces of crops, and the probability that the active ingredients are contacted or swallowed by pests can be improved when the inducer induces the pests, so that the effect of efficient and lasting killing of the pests is facilitated.
In summary, the present application has the following beneficial effects:
1. according to the application, two effective components, namely emamectin benzoate and indoxacarb, are adsorbed by the sodium n-butyrate, and then the sodium n-butyrate adsorbing the effective components is adsorbed by the white carbon black, so that the sodium n-butyrate can be stably attached to the white carbon black due to the porous structure of the white carbon black, and the sodium n-butyrate and the white carbon black have good dispersibility in a system, and the dispersion uniformity and the suspension effect of the effective components in the system are improved; meanwhile, the white carbon black has a good adhesion effect on the surfaces of crops, and is beneficial to improving the retention amount of effective components on the surfaces of the crops, so that the insecticidal persistence of the suspending agent is good.
2. The application takes the pollen polysaccharide and the algal polysaccharide as the inducers, can effectively induce pests to contact or swallow the active ingredients, thereby being beneficial to improving the insecticidal efficiency of the suspending agent; meanwhile, the pollen polysaccharide and the algal polysaccharide have good promotion effect on the growth of crops, and have better practicability.
3. According to the application, the sodium n-butyrate is firstly utilized to adsorb effective components, and then the white carbon black is utilized to adsorb the sodium n-butyrate, so that drug-loaded particles are formed, and the inducer is coated on the surface of the drug-loaded particles to form a coating layer.
Detailed Description
The embodiment provides an emamectin benzoate-indoxacarb suspending agent which comprises the following components in percentage by mass: 3-6% of emamectin benzoate, 10-15% of indoxacarb, 1-3% of carrier, 0.2-0.6% of inducer, 0.5-1% of synergist, 5-10% of organic solvent, 4-9% of other auxiliary agents and the balance of water; wherein the carrier is a mixture of white carbon black and sodium n-butyrate according to a mass ratio of (2-4) to 1.
The preparation method of the suspending agent comprises the following steps:
preparing an oil phase: mixing and stirring emamectin benzoate, indoxacarb and an organic solvent to obtain an oil phase after the emamectin benzoate and the indoxacarb are completely dissolved;
preparation of an aqueous phase: mixing and stirring other auxiliary agents and water to prepare a water phase;
mixing and sanding: mixing and stirring the oil phase, the water phase, the carrier, the inducer and the synergist, and sanding to obtain a finished product.
In the present embodiment, the mass ratio of white carbon black to sodium n-butyrate is more preferably 3: 1.
In the present embodiment, the average particle size of the white carbon black is 40 to 60nm, the average particle size of the sodium n-butyrate is 30 to 50 μm, and more preferably, the average particle size of the white carbon black is 50nm, and the average particle size of the sodium n-butyrate is 40 μm.
The inducer in the embodiment is prepared from pollen polysaccharide and algal polysaccharide according to the mass ratio of (1-2): 1, more preferably in a 2:1 mass ratio.
The synergist in the embodiment is piperonyl butoxide and diethyl maleate in a mass ratio of 1: (1.5-2.8), and the mass ratio of the two is more preferably 1: 2.
The organic solvent in the present embodiment includes at least one of xylene, toluene, and ethanol, and preferably xylene.
The other auxiliary agents in the embodiment are a mixture of a surfactant, a defoaming agent, a suspending agent, a thickening agent, an antifreezing agent and a preservative in a mass ratio of 2:1:1:1: 1; wherein the surfactant comprises at least one of polysiloxane, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate, and is preferably polysiloxane; the defoaming agent is preferably GP type glycerol polyether; the suspending agent is preferably magnesium aluminum silicate; the thickener is preferably xanthan gum; the antifreezing agent is preferably glycol; the preservative is preferably butylated hydroxyanisole.
In the step of mixing and sanding in this embodiment, preferably, sodium n-butyrate is dissolved in water, then the sodium n-butyrate aqueous solution and the oil phase are mixed and stirred, then the white carbon black and the inducer are added for continuous mixing and stirring, then the water phase and the synergist are sequentially added for continuous stirring, and a finished product is obtained after sanding.
In the aqueous phase preparation step in this embodiment, the stirring temperature is preferably 30 to 40 ℃, and more preferably 30 ℃.
In the oil phase preparation step in this embodiment, the stirring temperature is preferably 50 to 60 ℃, and more preferably 55 ℃.
The starting materials in the examples and comparative examples of the present application are commercially available.
The present application will be described in further detail with reference to examples.
Examples
The difference between examples 1 to 5 is that the raw materials are different in mass, and example 1 will be described below as an example.
Example 1
The emamectin benzoate-indoxacarb suspending agent comprises the following components in mass by 1kg of finished suspending agent: 40g of emamectin benzoate, 121g of indoxacarb, 20g of carrier, 4g of inducer, 7g of synergist, 75g of organic solvent, 70g of other auxiliaries and the balance of water; wherein the carrier is a mixture of white carbon black and sodium n-butyrate according to the mass ratio of 3: 1.
Wherein the average grain diameter of the white carbon black is 50nm, and the average grain diameter of the sodium n-butyrate is 40 mu m; the inducer is pollen polysaccharide and algal polysaccharide according to the mass ratio of 2: 1;
the synergist is piperonyl butoxide and diethyl maleate in a mass ratio of 1: 2;
the organic solvent is dimethylbenzene;
the other auxiliary agents are a mixture consisting of a surfactant, a defoaming agent, a suspending agent, a thickening agent, an antifreezing agent and an antiseptic according to the mass ratio of 2:1:1:1:1:1, the surfactant is polysiloxane, the defoaming agent is GP-type glycerol polyether, the suspending agent is magnesium aluminum silicate, the thickening agent is xanthan gum, the antifreezing agent is ethylene glycol, and the antiseptic is butyl hydroxy anisol.
The preparation method of the suspending agent comprises the following steps:
preparation of S1 oil phase: mixing and stirring emamectin benzoate, indoxacarb and an organic solvent at the temperature of 55 ℃, wherein the stirring speed is 700rpm, and obtaining an oil phase after the emamectin benzoate and the indoxacarb are completely dissolved;
preparation of an aqueous phase of S2: mixing and stirring other auxiliary agents and water at the temperature of 30 ℃, wherein the stirring speed is 800rpm, and the stirring time is 30min, so as to prepare a water phase;
s3 mixed sanding: at the temperature of 50 ℃, the stirring speed is constant at 800rpm, sodium n-butyrate is firstly dissolved in water, then the sodium n-butyrate aqueous solution and the oil phase are mixed and stirred, after stirring for 15min, white carbon black and an inducer are added for continuous mixing and stirring, after stirring for 30min, the water phase and the synergist are sequentially added for continuous stirring for 20min, and then the finished product is prepared after sanding.
Table 1 raw material composition table of suspending agent
Figure BDA0003448100040000061
Example 6
The difference between this example and example 1 is that in the step of S3 mixing and sanding, oil phase, water phase, carrier, inducer and synergist are directly mixed and stirred at a constant stirring speed of 800rpm at a temperature of 50 ℃, the stirring time is 65min, and the finished product is obtained after sanding.
Example 7
The difference between this example and example 1 is that in the step of S3 mixing and sanding, at a temperature of 50 ℃, and with a constant stirring speed of 800rpm, the oil phase and the carrier are mixed and stirred first, after stirring for 45min, the water phase, the synergist and the inducer are sequentially added, and stirring is continued for 20min, and a finished product is obtained after sanding.
Example 8
The difference between the embodiment and the embodiment 1 is that the carrier is a mixture of white carbon black and sodium n-butyrate according to a mass ratio of 2: 1.
Example 9
The difference between the embodiment and the embodiment 1 is that the carrier is a mixture of white carbon black and sodium n-butyrate according to a mass ratio of 4: 1.
Example 10
This example is different from example 1 in that the white carbon black has an average particle size of 40nm and the sodium n-butyrate has an average particle size of 30 μm.
Example 11
This example is different from example 1 in that the white carbon black has an average particle size of 60nm and the sodium n-butyrate has an average particle size of 50 μm.
Example 12
The difference between the embodiment and the embodiment 1 is that the inducer is pollen polysaccharide and algal polysaccharide, and the mass ratio of the pollen polysaccharide to the algal polysaccharide is 1:1, in a mixture of the components.
Example 13
This example differs from example 1 in that the inducer is a pollen polysaccharide.
Example 14
This example differs from example 1 in that the inducer is algal polysaccharide.
Example 15
This example differs from example 1 in that the inducer is ginkgo biloba leaf polysaccharide.
Example 16
The difference between the embodiment and the embodiment 1 is that the inducing agent is ginkgo biloba leaf polysaccharide and algal polysaccharide according to the mass ratio of 2:1, in a mixture of the components.
Example 17
The difference between the embodiment and the embodiment 1 is that the inducer is ginkgo biloba leaf polysaccharide and pollen polysaccharide, and the mass ratio of the ginkgo biloba leaf polysaccharide to the pollen polysaccharide is 1:2, and (b) a mixture of the components.
Example 18
The difference between the embodiment and the embodiment 1 is that the synergist is piperonyl butoxide and diethyl maleate in a mass ratio of 1: 1.5 of the composition.
Example 19
The difference between the embodiment and the embodiment 1 is that the synergist is piperonyl butoxide and diethyl maleate in a mass ratio of 1: 2.8 of the composition.
Example 20
This example differs from example 1 in that the synergist is piperonyl butoxide.
Example 21
This example differs from example 1 in that the synergist is diethyl maleate.
Example 22
This example differs from example 1 in that the surfactant is sodium lauryl sulfate.
Example 23
This example is different from example 1 in that the white carbon black has an average particle size of 80nm and the sodium n-butyrate has an average particle size of 70 μm.
Example 24
This example is different from example 1 in that the white carbon black has an average particle size of 20nm and the sodium n-butyrate has an average particle size of 10 μm.
Example 25
The difference between the embodiment and the embodiment 1 is that the inducer is pollen polysaccharide and algal polysaccharide according to the mass ratio of 3:1, in a mixture of the components.
Example 26
The difference between the embodiment and the embodiment 1 is that the inducer is pollen polysaccharide and algal polysaccharide, and the mass ratio of the pollen polysaccharide to the algal polysaccharide is 1:2, and (b) a mixture of the components.
Example 27
The difference between the embodiment and the embodiment 1 is that the synergist is piperonyl butoxide and diethyl maleate in a mass ratio of 1: 4, and (b) a mixture of the components.
Example 28
The difference between the embodiment and the embodiment 1 is that the synergist is piperonyl butoxide and diethyl maleate in a mass ratio of 2:1, in a mixture of the components.
Comparative example
Comparative example 1
This comparative example differs from example 1 in that the support was replaced by an equal amount of calcium carbonate and the average particle size was 50 nm.
Comparative example 2
The comparative example differs from example 1 in that the carrier is white carbon black.
Comparative example 3
This comparative example differs from example 1 in that the carrier is sodium n-butyrate.
Comparative example 4
This comparative example differs from example 1 in that the white carbon black was replaced with an equal amount of calcium carbonate and the average particle size was 50 nm.
Comparative example 5
This comparative example differs from example 1 in that sodium n-butyrate was replaced with an equal amount of sodium benzoate and the average particle size was 40 μm.
Comparative example 6
The comparative example is different from example 1 in that the mass ratio of the white carbon black to the sodium n-butyrate in the carrier is 1: 2.
Comparative example 7
The comparative example is different from example 1 in that the mass ratio of white carbon black to sodium n-butyrate in the carrier is 6: 1.
Comparative example 8
This comparative example differs from example 1 in that no carrier is added and the balance is made up with water.
Comparative example 9
The present comparative example differs from example 1 in that no inducer is added and the balance is made up with water.
Comparative example 10
In the related art, the emamectin benzoate-indoxacarb suspending agent comprises the following components in mass according to the total mass of 1 kg: 10g of emamectin benzoate, 80g of indoxacarb, 25g of dispersant, 8g of anti-settling agent, 20g of antifreeze agent, 10g of antioxidant, 10g of wetting agent, 20g of defoaming agent, 60g of solvent and the balance of water.
Wherein the dispersant is polyoxyethylene ether phosphate;
the anti-settling agent is xanthan gum;
the antifreeze agent is ethylene glycol;
the antioxidant is butyl hydroxy anisole;
the wetting agent is nonylphenol polyoxyethylene ether;
the defoaming agent is organic silicon;
the solvent is toluene.
The preparation method of the suspending agent comprises the following steps:
preparation of oil phase A1: mixing and stirring emamectin benzoate, indoxacarb and a solvent until the emamectin benzoate and the indoxacarb are completely dissolved in the solvent, wherein the stirring speed is 600rpm, and preparing an oil phase;
preparation of aqueous phase of A2: mixing and stirring the dispersing agent, the anti-settling agent, the antifreeze agent, the antioxidant, the wetting agent, the defoaming agent and water at the stirring speed of 600rpm for 20min to prepare a water phase;
a3 mixing and shearing: mixing the oil phase and the water phase, and shearing at high speed for 40min to obtain the final product.
Performance test
Detection method/test method
Suspension rate test: the samples prepared in examples 1-28 and comparative examples 1-10 were measured with reference to the detection standards and methods of GB/T14825-2006 "method for measuring suspension percentage of pesticide".
TABLE 2 suspension rate test data sheet
Figure BDA0003448100040000101
Figure BDA0003448100040000111
Figure BDA0003448100040000121
And (3) field efficacy test: the test is carried out according to the test method in GB/T17980.13-2000 'pesticide field efficacy test criterion'. The test agents are the samples prepared in the examples 1-28 and the comparative examples 1-10, the contrast agent is 10% emamectin benzoate-indoxacarb suspending agent produced by Zhengzhou Yanyuan agricultural chemical Limited company, the blank contrast agent is clear water, the application rates are 15 ml/mu, and the water consumption is 30 kg/mu.
The pesticide is applied once and repeatedly three times in the peak period of the young pieris rapae, the number of live insects is investigated and recorded before the pesticide application, 3 days after the pesticide application, 7 days after the pesticide application and 14 days after the pesticide application, and the control effect is calculated; and the investigation and recording mode adopts a five-point sampling method. The prevention effect calculation formula is as follows:
control effect (%) × 100 (1- (number of live insects before drug administration x number of live insects after drug administration in drug-treated area)/(number of live insects after drug administration x number of live insects before drug administration in drug-treated area).
TABLE 3 table of the results of the field efficacy test
Figure BDA0003448100040000122
Figure BDA0003448100040000131
Figure BDA0003448100040000141
The test results of tables 2 and 3 and the test results of examples 1 to 5 and comparative example 10 show that the suspending agent prepared by the method has excellent dispersing effect and suspending effect, better pest control effect and better control lasting effect.
The test results of the embodiment 1, the embodiments 12-17 and the comparative example 9 show that the inducer can effectively improve the control effect of the suspending agent on pests, and meanwhile, the pollen polysaccharide and the algal polysaccharide have a synergistic effect, so that the insect trapping effect is better after the suspending agent is compounded according to the mass ratio of 2: 1.
The test results of the embodiment 1 and the comparative examples 1 to 9 are combined, so that the suspension effect of the effective components can be effectively improved by compounding the white carbon black and the sodium n-butyrate according to a certain mass ratio, the retention time of the effective components on the surfaces of crops can be longer, and the white carbon black and the sodium n-butyrate can be visually observed from the control rates of 3d, 7d and 14d, so that the insecticidal persistence of the suspension agent is better. Meanwhile, the synergistic effect exists between the two, and the effect is better after the two are compounded according to a certain proportion. And the inducer has the characteristic of viscosity, and has an auxiliary effect on the insecticidal persistence of the suspending agent.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims (9)

1. A emamectin benzoate-indoxacarb suspending agent is characterized in that: the material comprises the following components in percentage by mass: 3-6% of emamectin benzoate, 10-15% of indoxacarb, 1-3% of carrier, 0.2-0.6% of inducer, 0.5-1% of synergist, 5-10% of organic solvent, 4-9% of other auxiliary agents and the balance of water;
wherein the carrier is a mixture of white carbon black and sodium n-butyrate according to a mass ratio of (2-4) to 1.
2. The emamectin benzoate-indoxacarb suspension according to claim 1, wherein: the average particle size of the white carbon black is 40-60 nm, and the average particle size of the sodium n-butyrate is 30-50 mu m.
3. The emamectin benzoate-indoxacarb suspension according to claim 1, wherein: the inducer is prepared from pollen polysaccharide and algal polysaccharide according to the mass ratio (1-2): 1, in a mixture of the components.
4. The emamectin benzoate-indoxacarb suspension according to claim 1, wherein: the synergist is piperonyl butoxide and diethyl maleate in a mass ratio of 1: (1.5-2.8).
5. The emamectin benzoate-indoxacarb suspension according to claim 1, wherein: the other auxiliary agents are a mixture consisting of a surfactant, a defoaming agent, a suspending agent, a thickening agent, an antifreezing agent and an antiseptic according to the mass ratio of 2:1:1:1: 1.
6. The emamectin benzoate-indoxacarb suspension according to claim 5, wherein: the surfactant comprises at least one of polysiloxane, sodium dodecyl sulfate and sodium dodecyl benzene sulfonate.
7. A preparation method of emamectin benzoate-indoxacarb suspending agent is characterized by comprising the following steps: the suspending agent comprises the following steps:
preparing an oil phase: mixing and stirring emamectin benzoate, indoxacarb and an organic solvent to obtain an oil phase after the emamectin benzoate and the indoxacarb are completely dissolved;
preparation of an aqueous phase: mixing and stirring other auxiliary agents and water to prepare a water phase;
mixing and sanding: mixing and stirring the oil phase, the water phase, the carrier, the inducer and the synergist, and sanding to obtain a finished product.
8. The method for preparing the emamectin benzoate-indoxacarb suspending agent according to claim 7, characterized in that: in the step of mixing and sanding, the oil phase and the carrier are mixed and stirred firstly, then the water phase, the synergist and the inducer are added in sequence to continue stirring, and a finished product is prepared after sanding.
9. The method for preparing the emamectin benzoate-indoxacarb suspending agent according to claim 8, characterized in that: in the step of mixing and sanding, sodium n-butyrate is dissolved in water, the sodium n-butyrate aqueous solution and the oil phase are mixed and stirred, then the white carbon black and the inducer are added for continuous mixing and stirring, then the water phase and the synergist are sequentially added for continuous stirring, and a finished product is prepared after sanding.
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