A special synergist for low-volume or ultra-low-volume spray application and its preparation method and application

Abstract

The invention discloses a special synergist for low-capacity pesticide spraying and a preparation method thereof. The special synergist for low-capacity pesticide spraying comprises, by mass, 1-50% high-grade alcohols, 1-60% of surfactant, 0.1-10% of film-forming agent, 0.1-10% of thickening agent, 1-20% of condensation nucleus substances and the balance oil-phase carrier. The preparation method of the synergist comprises the following step that the high-grade alcohols, the surfactant, the thickening agent and the condensation nucleus substances are mixed and introduced into an oil phase understirring, the materials are ground by a grinding machine to be prepared into a stable oil suspending agent, then the film forming agent is added, the materials are fully stirred and filtered to remove residues, and the finished product is obtained. An application method of the synergist includes the steps that the special synergist for low-capacity or ultra-low-capacity pesticide spraying is selected, after the synergist and a prevention chemical are mixed evenly according to the density of 50 g per mu, water is added to 0.5-1 kg, after the materials are evenly mixed, and the mixture is poured into a low-capacity or ultra-low-capacity pesticide spraying mechanical box for pesticide spraying. Liquid pesticide evaporation can be remarkably inhibited, liquid pesticide flying and bouncing arereduced, and the liquid pesticide utilization rate is increased.

Description

technical field [0001] The invention relates to the field of high-efficiency dispersion of pesticides, in particular to a special synergist for low-capacity or ultra-low-capacity spray application and a preparation method thereof. Background technique [0002] Low-volume or ultra-low-volume spray application is a new development of pesticide application technology. It can be widely used in the pest control of crops, fruit forests, flowers and trees, and can also be used for disinfection of greenhouses. It has the advantages of less water consumption and high efficacy of pesticide application. my country has already produced special equipment such as hand-held ultra-low sprayers and "Dongfanghong---18AC" knapsack motorized ultra-low-volume sprayers. Drone spraying is also an emerging and important way of spraying pesticides, and it has begun all over the country. Large-scale demonstration and promotion. However, there are still some problems to be solved urgently in low-volum...

AI Technical Summary

Problems solved by technology

Due to the low-volume or ultra-low-volume spraying, the small particle size droplets are the main body, and its specific surface area is large. During the spraying process, the water and organic solvents in the spray droplets are easily evaporated, causing the active ingredients of the pesticide to float in the air. In the process of low-capacity spraying, there are still spray particle sizes that are not uniform. When the proportion of large-size droplets is high, it will seriously affect the total number of spray droplets. Pesticide control effect

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