Crop condition was rated high in the July 6 USDA NASS crop report: with good to excellent ratings for corn, 85%; soybean, 84%; and sorghum, 84% Corn and sorghum maturity were advancing ahead of normal.
Soybean aphid populations can explode in August under favorable conditions. Vigilant scouting is recommended, especially in northeast Nebraska where populations have historically been highest, to allow for timely management decisions.
Recommendations for scouting and managing soybean aphids, including why the 250-aphids-per-plant threshold is used. Two tools―an app and Excel worksheet―can help speed up scouting in the field and indicate when treatment is warranted.