Fungicide Resistance Profiles for 13 Botrytis cinera Isolates from Strawberry in Southeastern Louisiana
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.
International Journal of Fruit Science
Wedge, D. E.,
Curry, K. J.,
Smith, B. J.
(2013). Fungicide Resistance Profiles for 13 Botrytis cinera Isolates from Strawberry in Southeastern Louisiana. International Journal of Fruit Science, 13(4), 413-429.
Available at: https://aquila.usm.edu/fac_pubs/15574