|Soybean aphid biological control|
Your Soybean Checkoff.
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|A good summary of what we know about aphid management and the cutting edge of aphid IPM research.
Soybean Aphid Research Update. Read online (pdf) or order a free print copy by calling 1-800-383-1423).
|See Soybean aphid-resistant soybean varieties for Iowa 2013. The listing includes varieties in late maturity group 0 and maturity groups 1, 2 and 3 (pdf)|
The soybean aphid (Aphis glycines) is the only aphid in North America able to develop large colonies on soybeans. It was identified as a pest in North America in 2000. Since then, it has established itself in most soybean-growing areas and is a significant soybean pest in some years.
When the tiny, sap-sucking insects are present in large numbers (several hundred per plant), their feeding can cause stunting, puckered yellow leaves, reduced pod set, and smaller seed.
The risk of yield loss is greatest when aphid populations peak during the R1-to-R4 growth stages, when blooms and young pods are most suseptible to stress.
Damage from aphid feeding increases when growing conditions, especially soil moisture, are below optimum.
Present and future tools to manage soybean aphids
Management of the soybean aphid is an active area of research in the north- central region. Growers now have a toolbox of strategies to work with, including.