Is it too late to spray?
Show:
Soybean Pest Podcast
Season:
4
Episode:
9
Description:
Most of the state is approaching the seed fill stage (R5), indicating the end of profitable yield returns with an insecticide application.
Category:
Search
Aphids on the rise, and rootworms, too!
Show:
Soybean Pest Podcast
Season:
5
Episode:
6
Description:
Matt and Erin summarize the trend in soybean aphid populations for the midwest. They discuss other pest, include the corn rootworm and the reports of cornfields damaged by this pest. For more info about how rotating crops is good for more than just managing rootworms, visit http://www.sustainablecorn.org/
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Category:
Japanese beetles: a new pest of Iowa corn and soybean?
Show:
Soybean Pest Podcast
Season:
4
Episode:
2
Description:
June is often a quiet month for insect pests but not this year as the Japanese beetle has emerged 2 to 3 weeks earlier then usual. So even though soybean aphids are uncommon right now, farmers may want to scout for this pest. We discuss what to look for and what the impact could be. To meet with Dr. Hodgson, consider joining her at the Crop Management Clinic (11-12 July) at FEEL.
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Category:
Soybean aphids populations increasing? Really?
Show:
Soybean Pest Podcast
Season:
2
Episode:
9
Description:
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.
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Category:
Understanding life cycle assessments with Dr. Rosentrater
Show:
Soybean Pest Podcast
Season:
6
Episode:
30
Description:
Matt and Erin have a special guest on this podcast to help understand life cycle assessments. Dr. Kurt Rosentrater is an engineer and associate professor at Iowa State. Kurt explained the basics of conducting a life cycle assessment, including assumptions and resulting complications that come with this tool. They focused on a recent example looking at environmental impacts in four major crops. Follow along with the figures in the paper here. The assessment showed freshwater ecotoxicity impact in soybean increased 3-fold from 2002 to 2012. The authors claimed the insecticides used to control soybean aphid was an important factor. Corn, cotton and wheat did not have a significant increase of impact over the study duration. Learn more about Kurt's research and teaching program here: http://www.abe.iastate.edu/kurt-a-rosentrater-assistant-professor/.
Category:
Breaking out, in a corn sweat.
Show:
Soybean Pest Podcast
Season:
11
Episode:
10
Description:
The heat is making field work challenging and podcasting an attractive alternative.
Erin covers a lot of ground, recapping reports of increasing (though sub-economic) soybean aphid populations, rootworm injury and new additions to the insects found in corn and soybean fields, including skipper sightings in soybeans (https://crops.extension.iastate.edu/blog/erin-hodgson/have-you-spotted-s...).
The hot and dry conditions in the western half of the state is making it challnging for corn and soybeans. We've seen this issue in the past, and this article reviews how to address spider mites that may be exacerbated by these weather conditions: https://crops.extension.iastate.edu/cropnews/2018/08/you-%E2%80%9Cmite%E2%80%9D-want-scout-drought-stressed-crops
Matt highlights some observations from a cannabis farm, in which a Eurasian Hemp Borer was observed on several plants. A summary of this pests biology, ecology and management can be found in this factsheet from the Colorado State University: https://webdoc.agsci.colostate.edu/hempinsects/PDFs/Eurasian%20hemp%20borer%20September%202018%20rewrite(1).pdf
On 23 July, 2020, Matt is speaking at a webinar sponsored by the Liberty Prairie Foundation. He wil talk about how the prairie strips practive in the Conservation Reserve Program (CP-43) can conserve pollinators on farm land. Details about this webinar and others hosted by the Liberty Prairie Foundation can be found here: http://libertyprairie.org/calendar/. Please feel free to join the webinar.
See you next week and stay safe.
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Ashley L St. Clair
Alumni
Graduate Research Assistant
Area of Expertise:
Honey Bee Nutrition, Native Pollinators, Insect Ecology
Ashley Dean
Staff
Education Extension Specialist I
Area of Expertise:
Field Crop Entomology