Horticulture Day
4:51 pm
Fri July 25, 2014

Millions of Mayflies Emerge in Northeast Iowa

This week, thick clouds of millions of mayflies emanated from the Mississippi River in Northeast Iowa.

There were so many of them that the National Weather Service picked up radar surveillance of what looked like rain.

Massive Mayfly emergence at La Crosse in La Crescent, Wis. on July 20, 2014
Credit Joey Hulett—National Weather Service/NOAA

It's Horticulture Day on Talk of Iowa. Guest host Emily Woodbury talks mayflies, mosquitos, and all things insect with Donald Lewis, Iowa State University Extension Entomologist. And, Richard Jauron joins the show to answer listener plant and garden questions.

Massive Mayfly emergence at La Crosse in Minnesota Ciy, Wis. on July 20, 2014
Credit Kelly Gardner—National Weather Service/NOAA

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