Macadamia stem canker inhibitor based on molecular disease-resistant pathway

Abstract

The invention belongs to the technical field of pesticides, and particularly relates to a macadamia stem canker inhibitor based on a molecular disease-resistant approach. The invention relates to a macadamia stem canker inhibitor based on a molecular disease-resistant pathway. The active ingredients of the macadamia stem canker inhibitor are formed by compounding oxathiapiprolin, triadimenol, methyl benzoate or fenhexamid. When the two effective components in the macadamia stem canker inhibitor are compounded, no cross resistance exists, a good synergistic interaction effect is shown, the macadamia stem canker prevention and treatment effect can be improved, the pesticide application dosage can be reduced, and meanwhile pesticide residues can be reduced. Besides, the molecular action mechanisms and action sites of oxathiapiprolin and other effective components in the macadamia stem canker inhibitor are different, when the macadamia stem canker inhibitor is used, multiple sites act together to kill pathogenic bacteria, generation of drug resistance of the pathogenic bacteria can be delayed, and meanwhile the life cycle of the agent can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a macadamia nut stem canker inhibitor based on a molecular disease resistance approach. Background technique [0002] Macadamia is a nut plant native to macadamia, which not only has high economic value, but also has good nutritional value and medicinal value. Macadamia has many diseases and insect pests, with more than 30 kinds of diseases and more than 300 kinds of pests, among which the more serious diseases are blight, root rot, flower blight, anthracnose, canker and gray mold. Among them, macadamia nut stem canker is a disease caused by Phytophthora cinnamomi Rands infecting the base, stem and main branches of macadamia nut stems. The stems or branches near the ground are infected first, and the bark becomes brown and hard at the affected part. , cambium necrosis. The demarcation between sick and healthy is obvious, and then the center of the lesion is sunke...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an inhibitor of macadamia nut stem canker based on a molecular disease resistance pathway, to solve the problem that macadamia nut stem canker has produced different degrees of drug resistance to the currently used agents, resulting in poor control effects of the current agents The problem

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