Resitance to benzimidazole fungicides in pathogens of Ascochyta diseases of peas - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Access content directly
Journal Articles Seed Sci.& Technol. Year : 1993

Resitance to benzimidazole fungicides in pathogens of Ascochyta diseases of peas

Abstract

The antifungal action of three fungicides of the benzimidazole family (benomyl, carbendazim, thiabendazole) were studied on the mycelial growth of Ascochyta pisi, Ascochyta pinodes and Phoma medicagenis var pinodella collected principally in 1990 and 1991 in France. It seemed that resistance to these fungicides existed for the two major pathogens of Ascochyta diseases of peas. For these two fungal species, the frequency of resistant isolates was high enough to cause resistance in practice. It reached 65% in A. pinodes and 100% in A. pisi. The existence of a negative cross resistance between fungicides of the benzimidazole family and diethofencarb in Botrytis cinerea has not been checked for certain A. pinodes isolates, which excludes the use of Sumico, a fungicide which associates carbendazim and diethofencarb.
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Dates and versions

hal-04609880 , version 1 (12-06-2024)

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  • HAL Id : hal-04609880 , version 1

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Valeris Molinero, Pierre P. Leroux, Bernard Tivoli, Remi Champion, Janine Said. Resitance to benzimidazole fungicides in pathogens of Ascochyta diseases of peas. Seed Sci.& Technol., 1993, 21, pp.531-535. ⟨hal-04609880⟩
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