Wettable powder capable of preventing and treating fruit and vegetable brown rot and aphid as well as preparation method thereof

Abstract

The invention discloses a wettable powder capable of preventing and treating fruit and vegetable brown rot and aphid as well as a preparation method thereof. The wettable powder comprises the components by weight: 20-30% of active components, 55-60% of carrier, 7-13% of wetting agent and 2-7% of dispersant; wherein the active components are a Szechwan chinaberry fruit extract product and berberine. The preparation method comprises the following steps: 1)mixing the Szechwan chinaberry fruit extract product and berberine in proportion, performing ultramicro-pulverization, passing through a sieve with 325 meshes to obtain the active components; 2)mixing the active components with a carrier, a wetting agent and a dispersant in proportion, performing ultramicro-pulverization, collecting powder after ultramicro-pulverization, performing spray drying, passing through the sieve with 325 meshes, and repeatedly operating until all the powder is passed through the sieve with 325 meshes to obtain the wettable powder. The wettable powder is capable of strongly inhibiting fruit and vegetable brown rot and aphid, and has the advantages of no toxicity, no pesticide residue, environmental protection, stabilization, high efficiency and low cost.

Description

technical field [0001] The invention relates to a wettable powder for preventing and treating fruit and vegetable brown rot and aphids and a preparation method thereof. Background technique [0002] The widespread use of chemical pesticides has played a huge role in ensuring high and stable crop yields. However, the "3R" problem caused by the long-term and large-scale unreasonable use of traditional chemical pesticides, that is, the residue, resistance, and rampantness is becoming more and more serious, which has aroused widespread concern in the society. It is more and more urgent to seek and develop new pesticides that are safe for human health and ecological environment. Compared with chemical pesticides, biological pesticides are generally considered to have obvious advantages such as no pollution, no pollution, no residue, and less resistance. [0003] Brown rot, also known as fruit rot, is a kind of sclerotinia, which is distributed in both north and south of China. ...

AI Technical Summary

Problems solved by technology

Aphids damage the back of leaves of vegetable and fruit trees or the young shoots and leaves of seedling plants, causing the internodes to become shorter and bent, and the young leaves are deformed and curled downwards, making the plants short and affecting the core or balling, resulting in reduced yield; Damaged vegetables cannot normally bolt, bloom and set seeds

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