On The Radio- Ohio’s bug invasion


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Mayfly (Paul/flickr)

Kasey Dresser| August 26, 2019

This weeks segment looks at the dramatic increase in summer mayflies in Ohio. 

Transcript: 

Part of northeastern Ohio went through a mayfly invasion this summer like never before. 

This is the Iowa Environmental Focus 

The Mayfly swarm was so dense that weather radars picked up the swarm of mayflies as they moved out of Lake Erie into the nearby cities. 

Mayflies covered cars, buildings, and storefronts. Mayflies are not uncommon for Ohio residents; however, the high volume of mayflies that have descended on some areas is undoubtedly out of the ordinary. 

Mayflies like clean water and they love to hatch their eggs in Lake Erie.  They lay their eggs on top of the water surface and they sink into the lake sediment. In about a one to three years, they ascend to the surface, emerging fully winged and ready to take flight. 

Mayflies do not have a long-life cycle. Individual mayflies live up to two days after they emerge. A swarm of mayflies typically lasts about a month. 

According to The Ohio State University, Sea Grant College Program this is a good thing because a swarm is a sign of healthy water in the Great Lakes. The Ohio Environmental Protection Agency uses insect population data to determine how clean the water is in the Great Lakes.

For more information, visit Iowa-environmental-focus-dot-org. 

From the UI Center for Global and Regional Environmental Research, I’m Sara E. Mason.

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