Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Published on Jul 10, 2013
Dr. Eileen Cullen, University of Wisconsin Extension Entomologist, takes you into the field for a short discussion about scouting for soybean aphids.
Economic threshold is reached when a field average is 250 aphids/plant and populations are actively increasing. To calculate a field average, count the number of aphids on each of 20-30 plants/field, from a sample representative of at least 80% of the field.
Begin field scouting in late June (late vegetative to beginning bloom soybean growth stages), making one or two visits/field/week. Continue scouting until aphid populations decline, usually mid to late August.