Identification on Resistance to Fungicide of Botrytis cinerea in Tianjin

doi:10.3321/j.issn:1000-7091.1998.04.020

Abstract

Abstract: One handred and twenty-two strains of Botrytis cinerea were isolated from greenhouse eggplants in Tianjin The ratio of resistant strains to carbendazim was 41.0%,and most of them were high in resistance The relationship between carbendazim and diethofencarb is negative cross resistant The ratio of the resistant strains to procymidome and iprodione is 27.9%,and all of them are low resistance,its EC₅₀ being between 2.3011-20.3810 μg/mL,and the relationship between procymidome and iprodione being cross resistance The result suggested that there are about 27.9% strains that have resistance to carbendazim,procymidome and iprodione,and 59.0% strains are sensitive to the three fungicides Besides,the strains resistant to carbendazim but sensitive to procymidome and iprodione constitute about 13.1%.

Key words: Eggplant, Botrytis cinerea pers, Carbendazim, Diethofencarb, Procymidome, Iprodione, Resistance

CLC Number:

S481.4

Wang Wanli, Wang Yong, Liu Gengchun, Hao Yongjuan, Liu Chunyan, Chen Jing. Identification on Resistance to Fungicide of Botrytis cinerea in Tianjin[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1998, 13(4): 107-111. doi: 10.3321/j.issn:1000-7091.1998.04.020.

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