Understanding white mold disease risk variations related to the pathogen's population, cultivar and environment


University of Florida

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Southeast (GA, FL, AL)

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 Planting date is still the most important factor in determining the risk for white mold in peanuts in North Central Florida. However, there does appear to be a pathogen population effect as the isolates tested in this study did not infect the susceptible (Georgia-06G) and resistant (Georgia-12Y) equally. This is concerning as it meant that resistance traits in current cultivars may be variable across the peanut production region, especially in the southeast. The fungicide Proline can provide effective white mold management, but unfortunately it did not reduce the disease to a non-yield limiting level in this study and its management of leaf spot diseases was minimal. Overall, variety if important in managing white mold, but so is the pathogen population present. 

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