Spotted Wing Drosophila

Spotted Wing Drosophila (aka SWD) has been found in Mississippi.  Dr. Blair Sampson and his technician Chris Werle identified it in blackberries last week.  I went out this morning to take a photo.  See it below:

SWD on rotting blackberry fruit

SWD on rotting blackberry fruit

The SWD is the little beige colored spot in the middle of the fruit.  It looks like your typical fruit fly.  The USDA-ARS here in Poplarville are starting to look into this problem with greater detail, including trapping it.  Other states have had more experience with this pest.  Michigan State ( and Oregon State ( have good, informative websites.  Dr. Hannah Burrack from NC State has a blog that has covered SWD as well (  These are just a few of the possible links.

So far, we have not seen SWD in blueberries, but it would be foolish to think it will not occur at some point; therefore, we will be vigilant in our scouting for this pest.

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