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ARS Home » Southeast Area » Byron, Georgia » Fruit and Tree Nut Research » Research » Publications at this Location » Publication #340105
Title: The role of phosphites in scab management and residues in pecan kernels

Author
item Bock, Clive
item BRENNEMAN, TIM - University Of Georgia

Submitted to: Southeastern Pecan Growers Meeting Proceedings
Publication Type: Other
Publication Acceptance Date: 12/2/2016
Publication Date: 2/24/2017
Citation: Bock, C.H., Brenneman, T.B. 2017. The role of phosphites in scab management and residues in pecan kernels. Southeastern Pecan Growers Meeting Proceedings. Available: http://sepga.com/Presentation/WEB2017pres/PresentationsBock.pdf.

Interpretive Summary:

Technical Abstract: Phosphite fungicides are used to manage pecan scab (caused by Fusicladium effusum), the most economically destructive disease of pecan in the Southeast US. The EU has imposed a minimum residue limit (MRL) on these fungicides in pecan kernels. Data shows that the phosphite residue exceeds the 2 ppm MRL in most samples tested. The value and use of phosphites for disease control in pecan are discussed in light of the MRL issue.