Biting Black Fly Population in Full Force

Updated: 07/08/2014 10:55 PM
Created: 07/08/2014 5:04 PM

It's not just mosquitoes biting you this summer. Their cousin, the black fly, is too.

Mike McLean with the Metropolitan Mosquito Control District said there are more black flies than usual in Minnesota this summer. This is a direct result of the flooding we have had this spring as the flies breed in running water.

"Black flies depend on clean running water," said Tim Craig, the head of the biology professor at UMD. "If you have black flies, it's a good indication that you have good water quality in the area."

Craig said there's not much you can do to escape the flies. He said they are not deterred by insect repellents like DEET, so the best thing you can do is to cover up by wearing long sleeve shirts or an insect net to protect your face.

As floodwaters recede, the problem should improve. Craig said the flies tend to tail off in July.

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