Matt O'Neal talks with Amy Asmus of Asmus Farm Supply to discuss outbreaks of aphids in cornfields around north-central Iowa. The two discuss what species of aphids are in corn and what impact they may have. Be prepared for more questions than answers as the scientist and crop consultant compare notes about this problem. For a more complete description of the aphids see Dr. Erin Hodgson's article in the Integrated Crop Management Newsletter (www.extension.iastate.edu/CropNews/2009/0807hodgson.htm)
Dr. Mary Gardiner, assistant professor at the Ohio State University, visited ISU and gave a seminar about her research on the ladybeetles. Ladybeetles can play a positive role by feeding on pest like the soybean aphid. Mary's research is focused on the exotic multi-colored asian ladybeetle. This species is a voracious predator of soybean aphids, but is also a pest in our homes and to grape growers. Mary is documenting the role landscape plays in the establishment of this species as part of her Buckeye Lady Beetle Blitz. To learn more about Mary's work visit http://ladybeetles.osu.edu/default.asp
Drs. Matt O'Neal and Erin Hodgson are back with their weekly podcast regarding the soybean aphid and other insect pests of soybeans. In this brief (~3min) episode we talk about the state of soybean aphids in Iowa and the midwest with a quick review of efforts to monitor aphid migration to soybeans. Please email us with your questions (firstname.lastname@example.org or email@example.com)
In this episode Drs. O'Neal and Hodgson discuss the low populations of soybean aphids in Iowa. Dr. Hodgson highlights upcoming meetings and workshops to learn more about soybean production and pest management.
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.
Still very few aphids in the soybean fields of Iowa. Drs. O'Neal and Hodgson give an update and discuss the likelihood of a soybean aphid outbreak later this summer. Also, Dr. Hodgson gives us an update of events where she will discuss recent research and new tools for pest management in soybeans.
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).
Winged aphids are still on the move in Iowa, although most fields still remain well below treatment levels. Neighboring states have notable aphids, so scouting should still continue.
Soybean aphids are picking up activity throughout Iowa; however, populations are still very patchy. Also consider other defoliators in soybean right now that might compound stress during pod set.
Erin Hodgson talks about recent aphid populations and also some interesting defoliators in soybean.