Avilamycin water-suspension nano capsule preparation and method for preparing same

Abstract

The present invention discloses an abamectin water suspension nano capsule preparation made up by enulsion polymerization process. Its capsule skin is the styrene, isocyanate, acrylic and methyl acrylic monomer copolymer, and the capsule core contains effective component biological source pesticide and abamectic new dosage form, in which abamectin content is 0.2%-5% (w / w), capsule content is 5%-30% (w / w), additive content is 10%-35% (w / w) and proper quantity of water. Said nano capsule is monodisperse spherical granules, and its average grain size less than 100 nano. It can be extensively used for controlling several pests of fruit tree, vegetable, flowers, cotton and tobacco and other crops.

Description

technical field [0001] The invention relates to a water-suspended nanocapsule of avermectin, which belongs to the formulation technology of biological source pesticides and veterinary drugs. Background technique [0002] Abamectin is a biogenic pesticide and veterinary drug produced by microbial fermentation and purification. It is used in agricultural production to prevent and control stubborn pests and mites in fruit trees, vegetables, flowers, cotton, tobacco and other plants, such as More than 80 kinds of pests such as Liriomyza sativae, diamondback moth, spider mite, cabbage caterpillar, root-knot nematode, cotton bollworm, pear psyllid, etc.; in animal husbandry, it is used to drive and kill gastrointestinal nematodes in animals and cowhide maggots in vitro, It is one of the most effective, fastest-growing and most widely used biological source pesticides in the world. Its broad-spectrum, ultra-efficient, and effective The characteristics of small amount, low residue,...

AI Technical Summary

Problems solved by technology

[0003] 1. Contains a large amount of organic solvents, such as toluene, xylene, etc., causing thousands of tons of organic solvents to be discharged into nature every year, wasting resources and seriously polluting the environment

[0004] 2. When used, it needs to be diluted with water to form an emulsion. The active ingredients are micron-scale dispersed. The dispersibility of the active ingredients is poor and the effective utilization rate is low, resulting in a large amount of pesticides, resulting in increased agricultural costs and a large number of pesticide residues, which seriously affects the quality of agricultural products.

[0005] 3. The active ingredients have poor permeability, and the active ingredients remaining on the leaves are decomposed and wasted due to environmental factors such as light and air.

[0006] 4. The colonization of biological pesticides in the soil is poor, and the special ecological environment of the soil often inhibits the efficacy of biological pesticides, which limits the large-scale promotion of biological pesticides

[0007] Compared with emulsifiable concentrate, the microemulsion of abamectin can better solve the problems of water-based and high dispersion, but it is not a long-acting dosage form, and the release cannot be controlled. More importantly, the cost is high and the effect is not ideal