Dual-loaded nano pesticide capsule containing dinotefuran and abamectin and preparation method of dual-load nano pesticide capsule

Abstract

The invention provides a preparation method of a double-loaded nano pesticide capsule containing dinotefuran and abamectin and the double-loaded nano pesticide capsule prepared by the method, wherein the preparation method comprises the steps: step a, preparing an inner water phase and an oil phase from dinotefuran and abamectin respectively, preparing an outer water phase from an emulsifier, then dropwise adding the inner water phase into the oil phase to obtain a W / O type emulsion, and dropwise adding the W / O type emulsion into the outer water phase to obtain a W / O / W type primary emulsion; step b, performing fine emulsification on the primary emulsion obtained in the step a through high-pressure homogenization to obtain fine emulsion; and step c, stirring the fine emulsion obtained in the step b to volatilize an organic solvent to obtain the double-loaded nano pesticide capsule. The double-load nano pesticide capsule prepared by the method has the advantages of nano-scale particle size, good particle dispersibility and leaf surface wetting performance, high effective utilization rate, and good control effect on grapholitha molesta.

Description

technical field [0001] The invention belongs to the technical field of pesticides. Specifically, the present invention relates to a double-loaded nanopesticide capsule containing dinotefuran and abamectin and a preparation method thereof. Background technique [0002] The small pear borer, also known as the small pear borer moth, the oriental fruit beetle moth, the pear borer, the small borer, and the peach heartworm, is referred to as "little", which belongs to Lepidoptera and the family Lepidopteridae. It is a common pear tree, A kind of fruit tree borer of peach trees, apple trees, etc., which usually drills the fruits of fruit trees and causes severe yield reduction. It is one of the main fruit-boring pests in the world. In recent years, due to the increase of fruit tree planting types, the continuous expansion of planting area and the prohibition of some highly toxic pesticides, the pear borer has a tendency to increase year by year. [0003] Most of the pesticides cu...

AI Technical Summary

Problems solved by technology

[0003]The currently prepared pesticides for the prevention and control of pear borer are mostly concentrated in the micron level, easy to be lost in the field, and the leaf surface infiltration performance and insecticidal effect are poor, while Due to the small size effect and large specific surface area, nano-pesticide capsules have obvious advantages in improving the deposition and distribution of pesticide leaves and enhancing biological activity

However, the preparation of nano-scale pesticide capsules requires high preparation technology, especially the research on dual-loaded nano-pesticide capsules loaded with two pesticide active ingredients at the same time is very limited.

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