Bug Scout 1980
Check for Rootworms
(Tom Turpin, Entomologist, Purdue University)
It's a rootworm pointer!
  Download:     Black & White     Color
June 21, 1980

You probably haven't noticed, but rootworm larvae are actively feeding on your corn roots this time of the year.  The damage will be obvious later, when it's too late to do anything about it.

Now is a good time to grab a shovel and head for the corn.  Dig up a plant with the soil around the roots.  Look through the soil and in the roots of the plant.  Larvae are small, no more than one-third inch long, with a brown spot on each end.  If larvae are present, an insecticide application with cultivation might be profitable.

It's good policy to check all fields of corn following corn.  Even if an insecticide was used at planting, a quick check might identify fields with poor insecticide performance.

If Paul Revere had been an entomologist he no doubt would have made his famous ride this time of year.  Shouting, of course, "The rootworms are coming."

by Tom Turpin, Entomologist, Purdue University

Purdue University | Purdue Agriculture | Entomology | Entomology Extension

Copyright © 2008, Purdue University, all rights reserved
Website developed and maintained by the Entomology Extension at Purdue University

If you have trouble accessing this page because of a disability, please contact the Webmaster.

An equal access/equal opportunity university