New fruit fly threatens Minnesota crop

New fruit fly threatens Minnesota crop Click to Enlarge Photo:

Jul 17, 2013 at 10:18 am

ST. PAUL, Minn. (AP) A harmful new fruit fly threatens Minnesota's raspberry, blueberry, strawberry, grape and cherry crops.

The tiny spotted wing Drosophila is native to Asia. It was found first in California in 2008 and quickly caused sizeable losses along the West Coast.

The first arrival in Minnesota was detected late last summer. The first confirmed appearance in Minnesota this year was June 27 in Dakota County. An infestation was found in Rice County a week later. Five more reports have since surfaced since then.

University of Minnesota entomologist Mark Asplen says the flies lay their eggs inside the fruit, the eggs hatch, and the larvae feed on the fruit from the inside, turning it into a mushy mass.

The flies can be controlled with insecticides.

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