Aviation application type mesotrione water suspending agent and preparation method thereof

Abstract

The invention relates to an aviation application type mesotrione water suspending agent and a preparation method thereof. The water suspending agent comprises the following components in percentage byweight: 10-40% of a mesotrione technical material, 1-6% of a wetting dispersant, 0.5-5% of a thickening agent, 0.1-0.5% of a defoaming agent, 2-6% of an antifreezing agent, 0.1-1% of a preservative,0.1-0.3% of a pH regulator, 0.1-1% of a spraying auxiliary agent, and the balance of deionized water for complementing the total weight percentage to 100%. Compared with the prior art, the water suspending agent provided by the invention has a novel auxiliary agent system, the volatilization drift loss of the mesotrione in a spraying process by using an unmanned aerial vehicle is reduced, the improvement of the utilization efficiency of the pesticide is facilitated, and the environmental pollution is reduced. With the combination of the pesticide spraying technology of unmanned aerial vehicles, the aviation application type efficient environment-friendly mesotrione water suspending agent has strong wettability, is obviously enhanced in adhesive force on plant leaves, and is an efficient green aviation application type mesotrione water suspending agent.

Description

technical field [0001] The invention belongs to the field of pesticide preparations, and in particular relates to an aerial application type mesotrione aqueous suspension and a preparation method thereof. Background technique [0002] Mesotrione (mesotrione), also known as "Mesotrione", is a new triketone herbicide with contact and specific effects, mainly by inhibiting the expression of hydroxyphenylpyruvate dioxygenase in plants. It has herbicidal activity and can effectively control broad-leaved grasses and some grass weeds. Mesotrione is easy to conduct in the xylem and phloem of plants, has contact killing effect and specific effect, and its biological activity is 10 times higher than that of sulcotrione. [0003] With the rapid development of China's science and technology and the popularization of modern pesticide technology, aircraft spraying technology has gradually become the new favorite of China's modern pesticide spraying. Aircraft spraying pesticides is highl...

AI Technical Summary

Problems solved by technology

Pesticide spray auxiliaries are classified according to chemical composition, mainly including mineral oil, surfactant, vegetable oil, silicone, etc. Mineral oil spray adjuvant can promote the penetration of herbicides in the waxy layer of plant leaves and insect body surface Absorption, but the selectivity to some crops is poor, and the environmental conditions are strict when used. In addition, mineral oil is a petroleum product, and the source of raw materials is limited; organic silicon additives can effectively reduce the surface tension of the solution, and can greatly promote the diffusion of the drug. However, this additive is very sensitive to the pH value of the aqueous solution, and it is very easy to polycondense and lose its effect when pH9. Therefore, due to stability problems, the application range of silicone additives is narrow; vegetable oil spray aids The agent can increase the viscosity of the liquid medicine and has strong permeability. There are many commercial vegetable oil spray auxiliaries, but the price is more expensive

[0005] At present, mesotrione pesticides have the problems of poor dispersion stability, Oswald ripening and easy water bottoming. When using drones to spray pesticides, they are prone to sedimentation and aggregation, clogging nozzles and not being able to effectively adhere to plant surfaces.

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