Drs. O'Neal and Hodgson give a quick update on the status of soybean aphid populations in Iowa. They also review the other insect pests that may be out this time of year feeding on soybean leaves.
Aphids are still hard to find, but that doesn't mean that Matt and Erin can't find something to talk about. We discuss spraying insecticides based on a calendar date as opposed to spraying insecticide based on need (i.e. aphids populations above a threshold).
Dr. O'Neal returns from vacation to discuss with Dr. Hodgson reports of aphid outbreaks in Iowa. The doctors have an upcoming field day on August 28th in Sutherland Iowa, Sponsored by PFI. For details visit http://www.practicalfarmers.org/assets/vcalendar/index.php.
Aphid populations continue to increase in Iowa. We discuss their trajectory and when/if insecticides will be needed. Also, new publications from Iowa State University are available for the soybean aphid and the brown marmorated stink bug. To purchase the id guide for stink bugs or the new soybean aphid field guide visit the ISU extension publication store (www.extension.iastate.edu/store). To learn where the brown marmorated stink bug is in Iowa visit www.ncipmpipe.org.
Today, Matt and Erin recap current soybean planting progress in Iowa. They also talk about recent armyworm activity in soybean and considerations for management. Finally, the podcast wraps up with a quick summary of a symposium organized for neonicotinoid seed treatments in field crops from last week.