Antifungal composition and application thereof

Abstract

The invention discloses an antifungal composition and application thereof. The antifungal composition comprises two active components A and B, wherein the weight ratio of the component A to the component B is 1:100 to 100:1; the component A is selected from the compounds as shown in the following general formula; in the formula, R1 is selected from H, 2-Cl, 2-CH3, 2-OH, 4-Cl, 4-CH3, 4-OCH3, 4-OH, 2,4-2Cl OR 2,4-2CH3; R2 is selected from CH3 or C2H5; R3 is selected from H, Cl, CH3 or C2H5; Q is selected from Q1, Q2 or Q3 with the structures as shown in specifications; the component B is selected from one or more of fungicide of benzene and analogue thereof. The antifungal composition is particularly suitable for preventing and controlling various plant pathogenic fungal diseases, such as plant anthracnose, leaf spot disease, penicilliosis, root rot, damping off or Rhizoctonia solani.

Description

technical field [0001] The invention belongs to the field of agricultural fungicides, in particular to a fungicide composition. Background technique [0002] The new fungicide pyraclostrobin has high-efficiency and broad-spectrum fungicidal activity, and its structural formula is as follows: [0003] [0004] In the course of further research on the compound, the inventors found that the isomers and their analogs (such as the compound represented by the general formula I) generated during the preparation of the above compound (and its general formula compound) are effective against various fungal diseases such as Anthracnose, leaf spot, blight, rust, powdery mildew, etc. have a good protective effect and have a good therapeutic effect. [0005] [0006] Where: R 1 selected from H, 2-Cl, 2-CH 3 , 2-OH, 4-Cl, 4-CH 3 , 4-OCH 3 , 4-OH, 2,4-2Cl or 2,4-2CH 3 ; 2 selected from CH 3 or C 2 h 5 ; 3 selected from H, Cl, CH 3 or C 2 h 5 ; Q is selected from Q having...

AI Technical Summary

Problems solved by technology

[0019] Fungicides that replace benzene and its salts, such as chlorothalonil, thiophanate-methyl, and pentachloronitrobenzene, are widely used in agricultural production; they have a wide bactericidal spectrum, but th

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