Chlorothalonil is a broad-spectrum, protective fungicide . Chlorothalonil has no systemic conduction, but after spraying onto the plant body, it has good adhesion on the body surface and is not easily washed away by rain, so the efficacy period is longer.
The Chinese pesticide network Xiaobian summarizes " the wide application of chlorothalonil ".
Synthetic method for chlorothalonil
1. Ammoxidation The m-xylene is subjected to a reactor in a gaseous state. The liquid ammonia is preheated by evaporation and then subjected to a reactor. The air is filtered and heat-exchanged, and then the reactor is subjected to an ammoxidation reaction.
2. The chlorinated isophthalonitrile is melted and sent to a vaporizer for vaporization or directly atomized with a portion of the gas stream (N2) through a nozzle. The chlorine gas is preheated by drying and mixed with gaseous meta-phthalonitrile, and nitrogen is used as a diluent gas for vaporization or atomization of isophthalonitrile and to adjust the reactant concentration.
The disease of chlorothalonil indications <br> chlorothalonil is mainly used for the prevention and control of rust, anthracnose, powdery mildew and downy mildew on fruit trees and vegetables. It can prevent melon downy mildew, powdery mildew, anthracnose, epidemic disease; tomato early blight, late blight, cucumber gray mold, leaf mold and so on.
Main use of chlorothalonil
1. A broad-spectrum protective fungicide that has a preventive effect on a variety of fungal diseases. The drug effect is stable and the residual effect period is long.
2. It is a high-efficiency, low-toxic and broad-spectrum fungicide, which has a preventive effect on various crop fungal diseases.
"About the wide application of chlorothalonil" pesticide network Xiaobian is summarized here! For more information on pesticides , please log in to the China Pesticide Network for enquiry!
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