European corn borer - Scouting

Blacklight trap

Fri, 11 Jun 2004 14:46:02 -0500

Blacklight trap equipped with a 15-watt bulb (M. E. Rice)

Pulling a corn whorl

Wed, 24 Mar 2004 12:19:42 -0600

Early-stage European corn borer larvae can be scouted by pulling the upper three to four leaves from the whorl and then unrolling the leaves to count the larvae.

Unrolling a corn whorl

Wed, 24 Mar 2004 12:19:11 -0600

After the whorl is pulled, early-stage larvae can be counted as the leaves are unrolled.

Scouting for second generation eggs

Wed, 24 Mar 2004 12:19:10 -0600

Scouting for eggs masses of second generation European corn borers requires searching the undersides of numerous corn leaves.

Knee high corn

Wed, 24 Mar 2004 12:19:06 -0600

Larvae of European corn borers usually do not survive on corn until it gets "knee high" because high concentrations of a chemical known as DIMBOA in younger plants typically kill the insects.