Some Midwest farmers are finding aphids in corn fields.
Iowa State University Extension entomologist Erin Hodgson says reports of the pest started coming in a couple of weeks ago.
“We can have a couple different species infesting corn, and you can have multiple species infesting the same plant. They kind of like to hang out together. But usually they fade away before tasseling.”
If corn aphids persist, she tells Brownfield they should be treated when large colonies develop around the ear and upper leaves.