Title

Fungicide Resistance Profiles for 13 Botrytis cinera Isolates from Strawberry in Southeastern Louisiana

Document Type

Article

Publication Date

6-4-2013

Department

Biological Sciences

Abstract

Fungicidal sprays are widely used for control of Botrytis fruit rot; however, the pathogen often develops resistance to frequently used fungicides. A 96-well plate micro-dilution broth bioassay developed for fungicide discovery was used to provide strawberry growers with a rapid assessment of the fungicide sensitivity of Botrytis isolates against 16 fungicides. Three sensitivity phenotypes were identified: benzimidazole and dicarboximide resistant, benzimidazole resistant and dicarboximide sensitive, and an intermediate response to both fungicides. Codon at position 198 in the β-tubulin gene confirmed benomyl resistance. This bioassay rapidly identifies fungicide resistance and allows growers to quickly adjust their disease management strategy.

Publication Title

International Journal of Fruit Science

Volume

13

Issue

4

First Page

413

Last Page

429

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