BENZOPYRONE COMPOUNDS, PREPARATION METHOD AND USE THEREOF

摘要

The invention is directed to pesticide or bactericide, and specifically discloses a type of benzopyrone compounds, preparation method and use thereof. The benzopyrone compounds of the invention is represented by formula (1): The compounds of the invention are potent pesticide and broad-spectrum bactericide, and are useful in control of pest on plant, such as in control of Plutella xylostella, Mythimna separata, aphid, tetranychus, ladybird, acarid, and Culex pipiens pallens. These compounds are suitable for prevention or cure of the following plant diseases: grape downy mildew, rice blast, tomato early blight, tomato late blight, wheat rust disease, wheat leaf spot, wheat powdery mildew, cucumber powdery mildew, cucumber downy mildew, cucumber botrytis, and so on.