Spotted Wing Drosophila Update
In Washington’s berry fields, a new pest has migrated north from California and is now causing headaches for small-fruit growers.
Spotted wing drosophila, or SWD, infests soft fruits with its eggs, ruining the fruit’s market value. First introduced into California in 2008, , SWD is a red-eyed “vinegar fly” that attacks ripening fruit as well as rotting fruit. The fly has rapidly spread northward along the Pacific coast into Oregon and Washington and is considered a serious threat to Pacific Northwest fruit crops such as cherry, raspberry, blackberry, blueberry, strawberry, plums, pluots and nectarines.
Named for the spots on their wings, … » More …