Insecticide nanocapsule for preventing and controlling fruit tree insect pests and preparation process thereof

Abstract

The invention discloses an insecticide nanocapsule for preventing and controlling insect pests of fruit trees. The insecticide nanocapsule comprises the following active components: 1-5% of spinetoramand 13-18% of a ginkgo extract. The preparation process comprises the steps of pretreatment of plant raw materials, extraction of plant components, compounding and emulsification, high-pressure homogenization, self-assembly of the nanocapsules, curing, and freeze-drying. The spinetoram and the ginkgo biloba extract are compounded, the synergistic effect is achieved, and the insecticidal activitycan be enhanced. The nano capsule obtained by the preparation process disclosed by the invention is small in particle size and high in encapsulation efficiency, not only can improve the stability of active ingredients, but also can achieve the purposes of controlling release, prolonging the lasting period and improving the effective utilization rate; therefore, the prevention and control effect onfruit tree pests is obviously improved. The insecticide nanocapsule is an ideal substitute for chemical insecticides in modern green ecological agriculture development.

Description

technical field [0001] The invention relates to the technical field of biopesticides, in particular to an insecticide nanocapsule for preventing and controlling fruit tree pests and a preparation process thereof. Background technique [0002] Agricultural products are the basic material for the survival and progress of the entire human society. However, harmful organisms such as diseases, insects, pests, and rats have been seizing and destroying the materials that human beings rely on for survival. The struggle between human beings and these harmful organisms has never ceased. Chemical pesticides are widely used because of their wide adaptability, simple operation, low cost, and remarkable effect. They have always been an important means of agricultural pest control and have made significant contributions to the high yield and income of crops. However, the long-term use of chemical pesticides has also brought various disadvantages, such as the generation of pest resistance, ...

AI Technical Summary

Problems solved by technology

However, the content of insecticidal active ingredients in plants is usually low and requires a large amount of raw materials, which may cause problems in the storage and transportation of raw materials, and may also conflict with land resource utilization and environmental protection.

[0006] At present, chemical insecticides are still the main body of insecticides in the world, while some problems of biological insecticides limit their promotion and popularization

Compared with chemical pesticides, biological pesticides use natural active substances or living organisms as active ingredients, which have poorer stability and are more sensitive to external environmental factors such as temperature, humidity and light, so the storage period is shorter , the field duration is also shorter

Most of the dosage forms of biopesticides are processed by imitating chemical pesticides. Commonly used dosage forms include emulsifiable concentrates, powders, wettable powders, and suspension concentrates. Most of these traditional dosage forms are open systems, so they also have activity. Decomposition and loss of ingredients, ineffective use of pesticides

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