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Submitted to: Southeastern Pecan Growers Meeting Proceedings
Publication Type: Other Publication Acceptance Date: 1/5/2016 Publication Date: 2/27/2016 Citation: Bock, C.H. 2016. Pecan scab – A retrospective, current status and future management. Southeastern Pecan Growers Meeting Proceedings. www.sepga.com/sepga---2016-presentations.html. Interpretive Summary: Pecan scab (caused by Fusicladium effusum) is the most economically destructive disease of pecan in the Southeast US. Wet, humid conditions typical of the Southeast are known to provide conditions conducive to epidemics. The history of the disease is described since its first discovery in the US. Methods used to control the disease are discussed in relation to changing technologies since the early 1900s, including resistant cultivars, fungicides, sprayer technology. Issues that remain are considered, including pathogen diversity, adaptability and the risk of resistance failure and fungicide insensitivity. New technologies that have application in managing scab are presented, including using genomics based tools including marker assisted selection and gene silencing. Technical Abstract: Pecan scab (caused by Fusicladium effusum) is the most economically destructive disease of pecan in the Southeast US. Wet, humid conditions typical of the Southeast are known to provide conditions conducive to epidemics. The history of the disease is described since its first discovery in the US. Methods used to control the disease are discussed in relation to changing technologies since the early 1900s, including resistant cultivars, fungicides, sprayer technology. Issues that remain are considered, including pathogen diversity, adaptability and the risk of resistance failure and fungicide insensitivity. New technologies that have application in managing scab are presented, including using genomics based tools including marker assisted selection and gene silencing. |
