| Pest: Aphids |
| Aphid natural enemies |
| Links to state resources |
Your soybean checkoff.
Delivering Results.
Soybean Aphid - Resources
Field guides
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| 2008 NCSRP Soybean Aphid Research Report (pdf). Includes an update on soybean aphid biological control, genetic resistance, aphid early-warning systems, revisiting the 250 threshold, and treatment recommendations. |
- Soybean Aphid Management Field Guide for 2008 (CSI-11) is a new spiral-bound publication available from Iowa State University Extension Online Store
- Soybean Reproductive Growth Stages R1-R8 and Soybean Aphid Action Thresholds (pdf) University of Wisconsin Extension
- A Visual Guide to the Number of Soybean Aphids per Leaflet. On the inside of this folded card you will see high resolution color photos of four soybean leaflets. Each has a specific number of aphids displayed to help you count more accurately when scouting.
- Soybean Aphids in Iowa (SP 247) by Marlin E. Rice, Matt O'Neal, and Palle Pedersen, is available to read online (pdf ) or as a print copy from the Iowa State University Extension Online Store.
North Central IPM Center Regional Soybean Aphid Suction Trap Network. Posts weekly winged soybean aphid counts for 10 North Central states.
| State extension fact sheets and websites | Extension newsletters check frequently for aphid updates |
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IA |
Soybean Aphid Scouting |
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IL |
Soybean Aphid (pdf) | Pest Management and Crop Development |
IN |
Pest & Crop Newsletter | |
KA |
Soybean Aphid - A new pest in Kansas (pdf) |
Kansas Insect News |
MI |
Field Crop Advisory | |
MN |
The Soybean Aphid in Minnesota website |
Just for Growers |
MO |
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Integrated Pest Management |
ND |
Soybean Aphid website |
Crop and Pest Report |
NE |
Crop Watch | |
OH |
Ag Crops Network | |
SD |
Soybean Aphid webpages |
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WI |
Soybean Aphid in Wisconsin webpages |
Wisconsin Crop Manager |
Ontario, Canada |
Agronomy Guide for Field Crops: Soybean/Soybean Aphid |
Crop Pest Ontario |
Soybean aphid biological control
Soybean Aphid Biological Control. Comprehensive information on soybean aphid biocontrol, and reports from the North Central regional project for the control of the soybean aphid by importation biological control.
Frequently Asked Questions about using beneficial insects to control soybean aphids. University of Minnesota (pdf)
Managing Soybean Aphids in 2007 — How Will Biological Control Contribute? On March 6, 2007, entomologists from throughout the Midwest conducted a short course on management of soybean aphids. Summaries and audio tapings of the course are available at the North Central IPM website.
The Good Guys - Natural Enemies of Insects - Illinois Natural History Survey
Soybean Aphids in Iowa (pdf) has an extensive section and photos on aphid natural enemies.
Bulletins and reports
USDA Regional Pest Alert: Soybean Aphid (pdf)
2008 NCSRP Soybean Aphid Research Report (pdf). Includes an update on soybean aphid biological control, genetic resistance, aphid early-warning systems, revisiting the 250 threshold, and treatment recommendations
First reports
Illinois Natural History Survey - Soybean Aphid Discovered
Soybean Aphid Biology in North America (pdf)
David Ragsdale, David Voegtlin and Robert O'Neil