Welcome to the Iowa State University Soybean Entomology Website. Drs. Matt O'Neal and Erin Hodgson jointly manage this lab to learn more about insect ecology, biology and integrated pest management.
Matt and Erin are back in the swing of podcasting after a long winter. But the pandemic means they can record the episode in their sweatpants! Matt provides an update on brown marmorated stink bug, an invasive species on the rise in Iowa and Japanese beetle activity. Erin gives a short recap of recent pest conditions in soybean, noting wireworms. Matt wraps up the conversation with a newly-designed F.I.T.
Matt and Erin took a 9-month break, but they promised to post more regular podcasts this year with Season 11. Erin provides a brief summary of statewide pest activity, including bean leaf beetle, seedcorn maggot, and alfalfa weevils. The first painted lady butterflies were also noted in Iowa over the weekend. Lastly, Matt poses the latest F.I.T. and talks about an invasive insect into North America.
Today, Matt and Erin recap insect activity around Iowa. They also discuss implications of the dry weather for 2019.
After a break, Matt and Erin get together for episode 3 in 2019. Erin mentioned a flash drought is expected this week if high temperatures continue throughout Iowa. This could have implications for pest management - slowing down soybean aphid but perhaps accelerating twospotted spider mite. Erin also highlights current pest activity in field crops, including corn rootworm and Japanese beetle. But they spent some time talking about the newest pest in Iowa, soybean gall midge. So many unanswered questions, but it appears this will be an economic soybean pest. Matt comes back to an older podcast episode where they reviewed the cancellation of sulfoxaflor insecticide. It was recently registered (again) by the EPA and will be labeled in soybean. This insecticide offers an alternative mode of action for soybean aphid. Finally, Matt brings up a F.I.T. that is about isopods.
In the second episode of season 10, Matt and Erin talk about recent planting conditions in Iowa and the midwest. It's behind for corn and beans, and for their research this summer, too. Matt explores recent cool, wet temps and the Drought Monitor. He poses a question...what's the opposite of a drought? Lastly, Matt has an interesting F.I.T. from Cleveland, OH this year.
Matt and Erin are back and starting Season 10! Erin kicks off the episode by summarizing current pest activity for 2019. It's been a cool, wet spring and delayed planting will influence early-season pest activity. Specific updates:
- Bean leaf beetle winter mortality was high.
- Seedcorn maggots are flying.
- Alfalfa weevils are active.
- Expected corn cutting dates from black cutworm are approaching.
- Soybean egg hatch is happening, most likely in northern Iowa, where most of the buckthorn is located.
Matt talked about a new F.I.T. (fun insect trivia), where he highlights the mosquito trapping network at ISU. Dr. Ryan Smith coordinated a mosquito and tick surveillance program to learn more about activity and disease incidence around the state every summer. Learn more about his historical data on his website.
Matt also had an opportunity to podcast with group of Iowa Youth who entered an NPR challenge. You can hear the episode where they talk about using insects for food here later this summer!
In the first episode of 2019, Matt and Erin wax philosophical about IPM. The conversation wanders around profitability, durability, and sustainability of corn and soybean farming in Iowa and beyond. Is now the time to think about re-establishing IPM into farm as new technologies emerge?
It's mid-September and the tenth episode of Season 9! Erin provides a brief update on the newest soybean pest in Iowa - soybean gall midge. Activity has slowed drastically since the last episode and is coordinated with quickly maturing fields in western Iowa. Matt traveled to Brazil for a soybean congress and gave some updates on new invasive in this large soybean-growing country.
This Soybean Pest Podcast episode is packed with good stuff! Matt starts off by sharing some positive data from USDA-NASS from Iowa. A recent report showed 45,000 honey bee colonies in Iowa, a 275% increase from 2017. Also, the number of in-season losses is down from last year. Erin talks about a new soybean pest that is showing up in western Iowa. The soybean gall midge can be a devastating stem-boring pest. She summarizes her observations in a recent ICM News article. Erin also notes aphid activity in increasing throughout northern Iowa - in corn and soybean. It's a good time to scout fields to check for aphids. Also, there is a newly-revised field guide for soybean aphid. Find the pdf and hardcopy versions at the Extension Store. Lastly, PFI is hosting a field day on September 6 near Marble Rock. Erin will share some information about host plant resistance for soybean aphid. Click here for more details.