[Apple-Crop] SWD attack on intact peaches

Win Cowgill wincowgill at mac.com
Mon Sep 18 14:51:46 EDT 2017


Glen- From work that Dean Polk Rutgers and I did in NJ we know that SWD can infest intact peach fruit
His response has more detail. But the answer is yes SWD can be an issue if the populations are high enough with alternative sources like Black Cherry, wild grapes, grapes, blueberries and many more.

Win

Win Cowgill
Executive Horticultural Advisor Tree Fruit-Phytelligence
Win Enterprises International, LLC
PO Box 143
Baptistown, NJ 08803
www.wincowgill.com
908-489-1476



> On Sep 18, 2017, at 1:10 PM, Glen Koehler <glen.koehler at maine.edu> wrote:
> 
> Case in Maine that appears to be SWD attack on intact peaches without splits or other prior wounds.  These peaches were ripening on the tree but not over-ripe and no splits etc. for easy drosophila oviposition without having to cut through skin.  Until now it seemed that SWD could only lay eggs in peaches with pre-existing wound.  Have other folks seen SWD infestation of intact peaches?   
> 
> 
> Glen Koehler
> University of Maine Cooperative Extension
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