Communities along the Great Lakes are preparing for the annual mayfly season, but water temperatures may not be warm enough quite yet for the fishflies to produce massive swarms. "The timing of mayfly ...

WINONA, Minn. (WKBT) -- Officials will turn off lights on Highway 43 bridges in Winona during mayfly hatching season to reduce safety hazards caused by the insects. The lighting shutdown targets the ...

Mayflies emerge when deep water temperatures reach 68 degrees, which hasn't happened yet in the Great Lakes. Residents can mitigate mayfly presence by using yellow light bulbs and sealing windows and ...