A kind of botanical herbicide powder and preparation method thereof

Abstract

The invention relates to a botanical herbicide powder and a preparation method thereof, belonging to the technical field of herbicide processing, wherein the weight parts of each component are 15-20 parts of Sapindus exotesta extract and 10-20 parts of A. 15 parts, 10~15 parts of plane grass extract, 5~8 parts of Tween-80, 50~55 parts of maltodextrin. Homogenize for 25-30 minutes under the condition of ~350Mpa to obtain emulsion; control the spray drying conditions as inlet air temperature 165-163℃, exhaust air temperature 98-101℃, pump speed 8.0-8.5mL / min, exhaust air pressure 100~ 150Pa, air intake: 1050~1055L / h, spray and dry the emulsion to obtain herbicide powder; the herbicide powder has good water solubility, can be used alone or in combination with other herbicides, and has high efficiency and environmental protection The advantages of being friendly and not prone to resistance.

Description

technical field [0001] The invention relates to a herbicide, in particular to a botanical herbicide powder and a preparation method thereof, belonging to the technical field of herbicide processing. Background technique [0002] In the late 1940s, chemically synthesized pesticides were favored due to their high efficiency, quick effect, and broad insecticidal spectrum, which caused the research and use of botanical pesticides to fall into a trough. However, with the use of chemical pesticides, its disadvantages have gradually emerged, such as the "3R" problem (residue, drug resistance, and re-emergence of pests). Botanical pesticides have attracted people's attention again because of their high efficiency, low toxicity, low residue, high selectivity, and resistance to pests, and have become a hot spot in current pesticide research. Due to the low toxicity of botanical pesticides to humans and animals, they are easily degraded in the environment and basically have no obvious...