Bug Scout 1982
Turn Over New Leaf on Bean Beetle Control
(Tom Turpin, Entomologist, Purdue University)
Aw, shucks, Sonny, these Mexican bean beetles are nothing compatred to the chinch bugs we had back ing '35!
  Download:     Black & White     Color
August 7, 1982

It's the good ol' summertime!  Time for country fairs, vacations, ice cream socials, and Mexican bean beetle damage.  Soybeans can be damaged by the Mexican bean beetles from late spring until fall.  Beetle populations can reach high numbers in late summer.

Mexican bean beetle adults and larvae damage soybean plants by feeding on leaf tissue.  The need for control with insecticides depends on the amount of defoliation and the stage of plant development.  For instance, when beans are beginning to form in pods, approximately 20% of the leaf tissue must be destroyed before control is needed.

Heavy rains and hot weather can also reduce populations of Mexican bean beetle.  When considering the need for soybean insect control, remember one thing.  It's a good idea to turn over a new leaf - a soybean leaf - several times during the growing season!  

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