Glen, i have been dealing with SWD in peaches now for at least 5 years. We have 
the biggest tart cherry industry here in the country so our numbers are very 
high. Ive noticed they have no problem getting into the flesh as well.

Kevin J. VerSnyder
VerSnyder Orchards
Lake Leelanau, MI
> On Sep 18, 2017, at 1:10 PM, Glen Koehler <> 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
> Pest Management Office
> Voice:  Office 207-581-3882,   Cell  207-485-0918
> 491 College Avenue, Orono, ME  04473
> UMaine Apple IPM
> Ag-Radar
> Our Changing Climate: It's Real, It's Us, It's Bad, Experts Agree. There's 
> Hope
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