The soybean aphid is a major pest for soybean growers in Iowa.
Since the arrival of this Asian species to Iowa in 2000, significant outbreaks have occurred--most noticeably in 2003 when aphid populations exceeded 3,000 aphids per plant in many fields.
A newly revised publication is now available to educate producers on what is known about the biology of the soybean aphid. Look for Soybean Aphids in Iowa--2007 (SP 247) by Marlin E. Rice, Matt O'Neal, and Palle Pedersen, available at the Iowa State University Extension Online Store .
This article originally appeared on page 236 of the IC-498(20) -- July 23, 2007 issue.