Biopesticide for preventing and treating macadimia nut leaf blight

Abstract

The invention belongs to the technical field of pesticides, and particularly relates to a biopesticide for preventing and treating macadimia nut leaf blight. The invention relates to a biopesticide for preventing and treating macadimia nut leaf blight. The biopesticide is prepared by binary compounding of effective components of chrysophanol and pyraclostrobin or pydiflumetofen. When the two effective components of the biopesticide are compounded, the biopesticide shows a synergistic effect, and compared with a single agent, the biopesticide can improve the prevention and treatment effect on macadamia leaf blight, reduce the application amount of the pesticide and reduce the prevention and treatment cost; and compared with a single medicament, the composition can effectively delay the generation of drug resistance. In addition, the biopesticide has the characteristics of low toxicity, low residue, low pollution and the like, belongs to a novel biopesticide, and has prevention and treatment effects on macadimia nut leaf blight.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to a biological pesticide for preventing and treating macadamia leaf blight. Background technique [0002] Macadamia nut, also known as macadamia nut, is a dicotyledonous evergreen tree. In the process of planting macadamia nuts, they are often attacked by various diseases and insect pests. The main diseases and insect pests are spider mites, aphids, tung moth, dry rot, anthracnose and leaf blight. Among them, leaf blight mostly occurs from leaf edge and leaf tip infection, and the lesions are irregular, reddish brown to taupe, and the lesions are contiguous to form large withered spots. There are many pathogenic bacteria that cause leaf blight, among which Microsporum Pestalotiopsis microspora is a common pathogen of macadamia leaf blight. [0003] In the process of agricultural production, chemical agents have the advantages of fast action and high efficacy, which can effecti...

AI Technical Summary

Problems solved by technology

But at the same time, chemical agents also have the disadvantages of easily causing resistance to pests and diseases, environmental pollution, and pesticide residues. In addition, the existing macadamia leaf blight has produced varying degrees of resistance to existing chemical agents. Therefore, it is necessary to develop and develop new Chemicals are of great significance in the control of macadamia leaf blight

At present, there are no relevant reports on the compounding of chrysophanol and pyraclostrobin or flufenapyramide