Bug Scout 1979
Planting Date Affects Insects
(Tom Turpin, Entomologist, Purdue University)
Of course I do my own planting... why do you ask?
  Download:     Black & White     Color
May 5, 1979

Planting date can be a good indicator of insect problems to expect in corn.

Rootworm larvae are more severe in early-planted fields. Early planting can also affect performance of insecticides for rootworm control. Fields planted after May 20 in most years probably do not need rootworm control.

The latest-planted corn in an area may, however, be more attractive to rootworm beetles. Such fields are more likely to have pollination problems due to silk-clipping by beetles.

Black cutworms generally are more of a problem in late-planted fields. Corn planted in late May or early June is often hardest hit.

First-brood European cornborer is more of a problem on early corn. The second brood of cornborer, however, is more likely to attack your later-planted corn fields.

The more you know about conditions where insects are likely to occur, the eaiser it is to find and control the little buggers.

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