Compound insecticidal aqueous emulsion containing abamectin and chlorpyrifos, and preparation method thereof

Abstract

The invention discloses a compound insecticidal aqueous emulsion containing abamectin and chlorpyrifos. The aqueous emulsion contains the following components by weight percentage: 0.1 to 5 percent ofabamectin, 10 to 50 percent of chlorpyrifos, 10 to 40 percent of solvent, 5 to 15 percent of emulsifier, 3 to 5 percent of anti-freeze agent, 0.05 to 1 percent of thickener, 0.05 to 0.2 percent of defoamer, 0.1 to 5 percent of stabilizer, and the balance of water. The invention has the advantages of solving the decomposition problem of the abamectin and greatly improving insecticidal efficacy, along with safe use, good environmental protection property and low cost.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to an insecticide, in particular to a compound insecticidal aqueous emulsion containing abamectin and chlorpyrifos and a preparation method thereof. Background technique [0002] Abamectin is a kind of bio-pesticide, which mainly interferes with the neurophysiological activities of insects, stimulates the release of γ-aminobutyric acid, and inhibits the conduction of insect nerve impulses. It can be used for the control of various pests. Its main feature is easy It is biodegradable and has a long duration of action, but its quick-acting property is poor, and it has the disadvantages of high cost and expensive price. Chlorpyrifos is a commonly used low-toxic organophosphate insecticide. It mainly controls pests through three modes of action: contact killing, stomach poisoning and fumigation. The insecticidal spectrum can be compared with methamidophos, but the toxicity is much lower than th...

AI Technical Summary

Problems solved by technology

The microemulsion is a transparent or translucent solution formed after the liquid or the liquid pesticide prepared with a solvent is dispersed in an aqueous solution containing a large amount of surfactant. Therefore, the organic chemical materials (emulsifier and enhancer) required for the microemulsion solvent) is more, the production cost is high

Microemulsions generally need to add about 10% solubilizers (mainly hydrophilic straight-chain or branched-chain alcohols and ketones). The acute toxicity of these substances is equivalent to that of xylene, and they are both hydrophilic and polar. Solvents are more likely to penetrate into crops and dissolve into farmland and water sources. It is more difficult to remove and separate these polar solvents than benzene non-polar solvents. Chronic toxicity cannot be ignored, so it adds a new threat to the environment and food safety.

Moreover, the content of active substances in microemulsions is generally only about 25%, which limits its application.

Images