- Agronomics
-
Diseases
- Asian Rust
- Anthracnose
- Bacterial Blight
- Bacterial Pustule
- Bean Pod Mottle Virus
- Brown Stem Rot
- Cercospora Leaf Blight
- Charcoal Rot
- Downy Mildew
- Frogeye Leaf Spot
- Green Stem Syndrome
- Iron Deficiency Chlorosis
- Phytophthora Root & Stem Rot
- Powdery Mildew
- Rhizoctonia
- Seedling Diseases
- Septoria (Brown Spot)
- SCN (Soybean Cyst Nematode)
- Soybean Mosaic Virus
- Stem Canker
- Sudden Death Syndrome
- Viruses
- White Mold
- Pests
- Biological Control
- Diagnostic Tools
- About Us
- Library
| Pest: Aphids |
| Aphid natural enemies |
| Links to state resources |
Your soybean checkoff.
Delivering Results.
Soybean Aphid - Resources
Field guides
 |
- Soybean Aphid Field Guide 2nd Edition - Iowa State University (pdf)
- 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.
Soybean Aphids - Northern Plains IPM Guide
| State extension fact sheets, and websites |
|
| Illinois |
Soybean Aphid (pdf) The Bulletin - pest managment and crop development information for Illinois |
| Indiana | Pest & Crop Newsletter |
| Iowa |
Aphid Field Guide 2nd Edition - Iowa State University (pdf) |
| Kansas | |
| Michigan |
Soybean aphid fact sheet (pdf) |
| Minnesota |
The Soybean Aphid in Minnesota website |
| Missouri |
Integrated Pest Management |
| North Dakota |
Soybean Aphid website Crop and Pest Report |
| Nebraska | |
| Ohio |
Soybean Aphids factsheet |
| South Dakota |
Soybean Aphid in South Dakota (pdf) |
| Wisconsin |
Soybean Aphid in Wisconsin webpages |
| Ontario, Canada |
Agronomy Guide for Field Crops: Soybean/Soybean Aphid |
Soybean aphid biological control
The Good Guys - Natural Enemies of Insects - Illinois Natural History Survey
Soybean Aphids in Iowa (pdf) includes a section with photos of aphid natural enemies.
Biological Control of Insect Pests on Field Crops in Kansas (pdf)
Identifying Natural Enemies in Field Crops. Field manual available from Michigan State University Extension
 |
| The 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. |
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