Submitted to: American Society of Sugarbeet Technologists
Publication Type: Abstract Only
Publication Acceptance Date: December 1, 2006
Publication Date: March 3, 2007
Citation: Hanson, L.E., Franc, G.D., Panella, L.W. 2007. Characterization of genes associated with potential for fungicide resistance in Cercospora beticola. American Society of Sugarbeet Technologists. Technical Abstract: The recent development and widespread use of fungicides with highly specific modes of action has greatly increased the potential for development of fungicide insensitivity in the pathogen population. Disease control failures have been reported with pathogens such as Cercospora beticola in sugar beet, and powdery mildews and leaf spots in other crops. Determining the modes of action of fungicides has enabled elucidating specific genetic mechanisms for resistance to several classes of fungicides. There have been ongoing efforts to determine the baseline sensitivity of sugar beet pathogens such as C. beticola to important fungicides. As the genetics of resistance to many of these fungicide classes is determined, there is the potential to determine the characteristics of important target genes in the population to obtain a better idea of some of the inherent risks for fungicide resistance development. Information on these gene sequences also can be used to develop improved and rapid screening methods. Information on important target genes for several classes of fungicides that are used or have been used for Cercospora leaf spot control is being collected.