Vinclozolin resistance of Botrytis cinerea isolated from strawberry in Taiwan

Chuan T.-Y., . and Amy Pwu, . (1990) Vinclozolin resistance of Botrytis cinerea isolated from strawberry in Taiwan. [Proceedings Paper]

Botrytis cinerea resistant to vinclozolin was isolated from strawberry grown in one field at Nei-hu Taipei Taiwan. The strains resistant to vinclozolin were also resistant to benomyl and the strains sensitive to vinclozolin were also sensitive to benomyl. Twelve fungicides were tested for cross-resistance the results showed there were positive cross-resistance between dicarboximide iprodione vincolzolin procymidone and dichlozolinate and aromatic hydrocarbon dicloran. The other fungicides such as mancozeb and dichloflyanid revealed no correlation with vinclozolin. The only one showed negative cross-resistance seemed to be chlorothalonil. Although dicarboximide and benzimidazole benomyl carbendazim showed positive cross-resistance it might be a coincidence. The ability of the fungus for mycelial growth sporulation and virulence mainly depended on fungal isolates tested but not on vinclozolin-resistance. Competition test in strawberry and grape with different ratio of spore concentration of resistant and sensitive strains the results showed that the sensitive strains were more competitive than the resistant strains

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Abstract

Botrytis cinerea resistant to vinclozolin was isolated from strawberry grown in one field at Nei-hu Taipei Taiwan. The strains resistant to vinclozolin were also resistant to benomyl and the strains sensitive to vinclozolin were also sensitive to benomyl. Twelve fungicides were tested for cross-resistance the results showed there were positive cross-resistance between dicarboximide iprodione vincolzolin procymidone and dichlozolinate and aromatic hydrocarbon dicloran. The other fungicides such as mancozeb and dichloflyanid revealed no correlation with vinclozolin. The only one showed negative cross-resistance seemed to be chlorothalonil. Although dicarboximide and benzimidazole benomyl carbendazim showed positive cross-resistance it might be a coincidence. The ability of the fungus for mycelial growth sporulation and virulence mainly depended on fungal isolates tested but not on vinclozolin-resistance. Competition test in strawberry and grape with different ratio of spore concentration of resistant and sensitive strains the results showed that the sensitive strains were more competitive than the resistant strains

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Item Type:	Proceedings Paper
Additional Information:	5 tables 18 ref.; Summary En
AGROVOC Term:	ARBUTUS
AGROVOC Term:	BOTRYTIS CINEREA
AGROVOC Term:	VINCLOZOLINA
AGROVOC Term:	RESISTENCIA QUIMICA
AGROVOC Term:	TAIWAN/ BENOMILO
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:26
URI:	http://webagris.upm.edu.my/id/eprint/14906

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