Control Effect of Wuyiencin and Cyprodinil on Botrytis cinerea

doi:10.16409/j.cnki.2095-039x.2025.02.004

Abstract

Abstract: Biological pesticides have been demonstrated to be both safe and highly effective. The combination of these biopesticides with chemical pesticides allow for a reduction in the application dosage of chemicals while simultaneously increasing control efficacy. In this study, the synergistic combination of wuyiencin and cyprodinil was screened out. The effects on mycelial growth and conidial germination of Botrytis cinerea under optimal combination conditions were determined. Additionally, the efficacy of this combination in controlling Botrytis cinerea on detached leaves of grape was evaluated. The results showed that the synergistic effect was the most significant when the ratio of wuyiencin to cyprodinil was 9:1, and the toxocity ratio was 1.678. The combination caused hyphae expanded irregularly and grew abnormally, significantly inhibited mycelial growth, and impeded conidial germination of Botrytis cinerea. The control efficacy on detached grape leaves and fruits was 75.19% and 66.67%, respectively, exhibiting a significant increase of 16.53%－27.06% and 19.05%－30.16% compared to the single treatment. This study provides a theoretical basis for the enhanced control efficacy of Botrytis cinerea through the combination of wuyiencin and cyprodinil. It also offers technical guidance for the environmentally friendly and efficient management strategies.

Key words: Botrytis cinerea, wuyiencin, cyprodinil, compound combination, control efficiency

CLC Number:

S476

ZHANG Xiaocui, XU Chunli, ZHOU Qianying, LIAO Yutong, SHI Liming, GE Beibei. Control Effect of Wuyiencin and Cyprodinil on Botrytis cinerea[J]. Chinese Journal of Biological Control, 2025, 41(1): 156-164.

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