Rainwash-resistant deltamethrin suspending agent

Abstract

The invention relates to a rain wash resistant deltamethrin suspending agent which is prepared from the following components in percentage by mass on the basis that the total mass of the deltamethrin suspending agent is 100%: 2.5-20% of deltamethrin, 1-3% of a wetting agent, 2-5% of a dispersing agent, 1-5% of a synergist, 0.1-0.5% of a thickening agent, 0.1-0.5% of a preservative, 2-8% of an anti-freezing agent, 0.1-1% of a suspending aid, 0.1-0.5% of a defoaming agent and the balance of water. Compared with the prior art, the deltamethrin suspending agent has the advantages that the adhesion of deltamethrin on the surface of a plant body is improved, the retention amount of deltamethrin on the surface of the plant body is increased, and the loss caused by rain wash is reduced, so that the pesticide effect period is long, the control effect is obviously improved, the pesticide use amount and the pesticide application frequency can be effectively reduced, and the labor cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a deltamethrin suspending agent resistant to rainwater erosion. Background technique [0002] Deltamethrin (DM) is one of the pyrethroid insecticides, the molecular formula is: C 22 h 19 Br 2 NO 3 , the chemical name is: α-cyanophenoxybenzyl (1R, 3R)-3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane carboxylate, also known as dichloride , Pu Chong Jing, Kai An Bao. Deltamethrin has a wide insecticidal spectrum, no selectivity to natural enemies, mainly contact and stomach poisoning, and has no systemic and fumigation effects. It is used in a small amount, is stable to light, metabolizes and excretes rapidly in mammals, and has less residue in the environment. It is mainly used to control agricultural pests and sanitary pests on cotton fields, vegetable fields, fruit trees and tea, especially for Lepidoptera larvae And aphids have great lethality, and the site of action is in...

AI Technical Summary

Problems solved by technology

[0004] (1) In actual use, due to the influence of wind, rain, dew, sun and other natural conditions, the adhesion of deltamethrin on the surface of plants or insects will decrease, especially in case of rain after application. Drug effect, shorten the drug effect period;

[0005] (2) At present, the main dosage forms of deltamethrin are emulsifiable concentrate and wettable powder. Since the emulsifiable concentrate needs to be prepared with a large amount of aromatic organic solvents, it will cause serious environmental pollution. The national environmental protection department has controlled such solvents, banned or restricted With this kind of solvent, the wettable powder, because it is powdery, is also prone to dust pollution during production and use.

[0006] (3) There are common deltamethrin suspending agents on the market, but there are problems of poor adhesion on the surface of plants and a lot of liquid loss during use, resulting in poor drug efficacy

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