Our extension program is led by Dr. Erin Hodgson, and Dr. O’Neal and many lab members also participate in programs throughout the year. We are focused on delivering research-based information to a variety of clientele. Our group serves farmers, crop consultants, agricultural professionals and other university/extension personnel. Most of our programs are within the state of Iowa, but we travel throughout the Midwest to deliver content. Our program topics are mostly focused on promoting IPM tactics, such as host plant resistance, sampling, economic thresholds, crop rotation and buffer strips. We strive to provide sustainable recommendations so that farmers can reduce production costs but still protect yield. Although most of our extension is soybean insect-related, we are also involved with corn insect management, too.

Each year, we speak to about 4,000 people. This includes a combination of field tours and lectures. In addition, we produce a number of publications to aid in IPM for field crops. There are several field guides, compendiums and other resources available to help make timely management decisions in corn and soybean.

Erin Hodgson teaching an extension class

Erin Hodgson teaching an extension class

Soybean aphid efficacy evaluations:


2020 Soybean Pest Efficacy Evaluation

2019 Soybean Pest Efficacy Evaluation

2018 Soybean Aphid Efficacy Evaluation

2017 Soybean Aphid Efficacy Evaluation

2016 Soybean Aphid Efficacy Evaluation

2015 Soybean Aphid Efficacy Evaluation

2014 Soybean Aphid Efficacy Evaluation

2013 Soybean Aphid Efficacy Evaluation

2012 Soybean Aphid Efficacy Evaluation

2011 Soybean Aphid Efficacy Evaluation

2010 Soybean Aphid Efficacy Evaluation

2009 Soybean Aphid Efficacy Evaluation

2008 Soybean Aphid Efficacy Evaluation

2007 Soybean Aphid Efficacy Evaluation

2006 Soybean Aphid Efficacy Evaluation

2005 Soybean Aphid Efficacy Evaluation



2020 Field Crop Production Handbook

2020 Current management challenges with corn rootworm

2019 Youth insect collection field guide

2018 Soybean gall midge

2018 Management of Insecticide-Resistant Soybean Aphid

2018 Soybean Aphid Field Guide, 2nd Edition

Management of insecticide-resistant soybean aphids

Biology and economics of recommendations for insecticide-based management of soybean aphid

Effectiveness of Neonicotinoid Seed Treatments in Soybean.pdf

Conserving bees in Iowa field crops

Build your own solitary bee nest

Conserving beneficial insects with native plants

2012 Field Crop Insects Compendium.pdf

Speed S for Soybean Aphid blank form

Creating an entomology project (4-H)

Using a podcast to promote research and extension (2015 ESA podcast poster.pdf)


Peer-Reviewed Extension Publications:

2019 Management of Japanese beetle

2016 Getting to Know the Insects

2015 Corn Rootworm Focus Group Summary, Journal of Extension.pdf

2012 Soybean Aphid Management, Journal of IPM.pdf

2012 Soybean Farmer Survey, Journal of Extension.pdf

2011 Soybean Aphid Biology, Journal of IPM.pdf



Not Erin's stuff, but good to know:


2022 Handy Bt Trait Table (sweet corn and field corn)

ISU Plant and Insect Diagnostic Lab