Suspended insecticide for preventing and treating thrips and application thereof

Abstract

The invention discloses a suspension type thrip control medicament, the medicament is in a water suspension dosage form, the components of the medicament comprise cyantraniliprole, chlorfenapyr and an auxiliary agent, and the mass ratio of cyantraniliprole to chlorfenapyr in the medicament is 1: 1-1: 20. The insecticide is used for preventing thrip pests, cyantraniliprole and chlorfenapyr in the insecticide are both effective components, after compounding, the insecticide resistance of pests can be reduced, the insecticide is low in toxicity and residue, the dosage is reduced, the use cost is reduced, environmental pollution is relieved, and the insecticide has the gain effect of compounding and addition.

Description

Technical Field

[0001] The present invention relates to the field of pesticide research and development, and particularly to a suspension-type thrips control agent and its application. Background Art

[0002] Thrips are small in size, have a fast reproduction rate, rapid iteration, hidden activities, and are prone to developing resistance to control agents. There is a lack of effective control agents, and such pests are called "resistant small insects" in agricultural production. In recent years, the harm caused by "resistant small insects" thrips has been increasing, and it has become the number one problem in the cultivation of fruit and vegetable crops. With the delisting of highly toxic pesticides, there are fewer and fewer agents on the market that can control thrips. More seriously, in the control of resistant small insects, almost no new compounds have been introduced in the past decade. Rational compounding or mixing of chemical agents has positive characteristics such as expanding the insecticidal spectrum, improving the control effect, extending the application period, reducing the dosage of pesticides, reducing phytotoxicity, reducing residues, and delaying the occurrence and development of pest drug resistance and resistance. The deficiencies of single agents can be compensated by pesticide compounding. However, the screening of components of compound compositions is a technical bottleneck in this field, and it is often difficult to achieve the expected synergistic effect of compounding. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a suspension-type thrips control agent for controlling thrips pests. The active ingredients selected are binary compounded with cyantraniliprole and chlorfenapyr. After compounding, it can reduce drug resistance, is low in toxicity and residue, reduces the dosage of pesticides, reduces the use cost, reduces environmental pollution, and has a synergistic effect of compounding.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a suspension-type thrips control agent, the agent is in a water suspension dosage form, and the components of the agent include cyantraniliprole, chlorfenapyr and auxiliaries. The mass ratio range of cyantraniliprole to chlorfenapyr in the agent is 1:1 to 1:20.

[0005] Further, the mass ratio range of cyantraniliprole to chlorfenapyr in the agent is 1:2 to 1:6.

[0006] Further, the mass ratio range of cyantraniliprole to chlorfenapyr in the agent is 1:4.

[0007] Further, the auxiliaries include wetting agents, stabilizers, dispersants, thickeners, pH regulators, defoamers, antifreeze agents and fillers.

[0008] Further, the total mass fraction of cyantraniliprole and chlorfenapyr in the agent is 5% to 50%.

[0009] The present invention also provides the application of the agent: for controlling thrips pests of leguminous plants. The usage method is to spray after diluting with water.

[0010] The beneficial effects produced by adopting the above technical solutions are as follows:

[0011] 1. The medicament provided by the present invention shows obvious synergistic or additive effects within a specific ratio range. The control effect of the medicament on bean thrips has been significantly improved compared with that of a single agent, reducing the dosage of pesticides, the number of pesticide applications, the cost of using pesticides, and the adverse impact of pesticides on the ecological environment.

[0012] 2. The insecticidal medicament provided by the present invention, the combination of two active ingredients, reduces the problem of thrips resistance, makes up for the defects and limitations in the use of a single agent, and has important significance for the comprehensive management of thrips resistance.

[0013] 3. The present invention has low toxicity and less residue. Specific Embodiments

[0014] The suspension-type thrips control medicament of the present invention, the medicament is a water suspension formulation, and the components of the medicament include cyantraniliprole, chlorfenapyr and auxiliaries. The auxiliaries include wetting agents, stabilizers, dispersants, thickeners, pH regulators, defoamers, antifreeze agents and fillers.

[0015] The medicament is used to control thrips pests.

[0016] In this embodiment, the contents described are all in weight percentages. The specific proportions of each component of the 25% cyantraniliprole·chlorfenapyr suspension are as follows:

[0017]

[0018] The preparation method of the medicament of the present invention is as follows: Measure and pump a specified amount of deionized water and ethylene glycol into a metering tank. After putting them into a preparation kettle, add the measured wetting agent, dispersant, 96% cyantraniliprole, 98% chlorfenapyr technical, magnesium aluminum silicate, defoamer, preservative, etc. under room temperature stirring. After shear dispersion for 30 minutes, pump it into a sand mill for grinding. The sand mill is cooled with cooling water to control the sand grinding temperature below 30°C. Take samples for detection of indexes such as particle size, dispersion, and emulsification. After passing the inspection, add 2% xanthan gum solution to adjust to an appropriate viscosity, and filter it into a transfer tank for sub-packaging.

[0019] The wetting agents and dispersants used include, but are not limited to: phosphate ester auxiliaries: SC (Syensqo Company), SC-60 (Jinan Jinhe New Materials Co., Ltd.), DS505 (Guangzhou Fangzhong Chemical Co., Ltd.), block polyether auxiliaries: Ethylan NS-500LQ (Nouryon Company), G-5000 (Croda Company), D-800 (Dow Company), polycarboxylates: Atlox-4913 (Croda Company), DA1349 (Syensqo), D-205, 305 (Dow), Agrilan 755, 788 (Nouryon), Terspers 2500 (Indorama), DS809 (Guangzhou Fangzhong Chemical Co., Ltd.), SP-27001 (Jiangsu Qingyu Chemical Technology Co., Ltd.); Antifreeze: Ethylene glycol, glycerol, propylene glycol, urea (commercially available); Defoamer: SAG 630, 1511, S580 (Momentive Performance Materials (China) Co., Ltd.); Thickener: Magnesium aluminum silicate (Suzhou Guojian Huitou Mineral New Materials Co., Ltd.), xanthan gum (Zibo Zhongxuan Biochemical Co., Ltd.).

[0020] Performance tests of the examples:

[0021] Suspension rate: "GB / T 14825-2006 Determination method for suspension rate of pesticides";

[0022] Low-temperature stability: "GB / T 19137-2003 Determination method for low-temperature stability of pesticides"

[0023] Hot storage stability: "GB / T 19136-2003 Determination method for hot storage stability of pesticides"

[0024] Dispersibility: Standards such as "GB / T 32775-2016 Determination method for dispersibility of pesticides".

[0025] The methods of the biological assay examples include: indoor biological assay and field test for controlling thrips.

[0026] The above description is only proposed as a technically feasible solution of the present invention and does not serve as a single limiting condition for its technical solution itself.

Claims

1. A suspension-type thrips control agent, characterized in that: The medicament is in a water suspension dosage form, and the components of the medicament include cyantraniliprole, chlorfenapyr and auxiliaries. The mass ratio range of cyantraniliprole to chlorfenapyr in the medicament is 1:1 to 1:

20.

2. The suspension-type thrips control agent according to claim 1, characterized in that: The mass ratio range of cyantraniliprole to chlorfenapyr in the medicament is 1:2 to 1:

6.

3. The suspension-type thrips control agent according to claim 1, characterized in that: The mass ratio of cyantraniliprole to chlorfenapyr in the medicament is 1:

4.

4. The suspension type thrips control agent according to claim 1, characterized in that: The auxiliaries include wetting agents, stabilizers, dispersants, thickeners, pH regulators, defoamers, antifreezing agents and fillers.

5. The suspension-type thrips control agent according to claim 1, wherein: The total mass fraction of cyantraniliprole and chlorfenapyr in the medicament is 5% to 50%.

6. Use of the complex suspension type thrips control agent according to any one of claims 1-5, characterized in that: It is used to control thrips pests of leguminous plants.

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