2001, we established a network of suction traps to sample for flying
soybean aphids. Our objectives were to determine when soybean aphids
leave their overwintering host, Rhamnus species, to colonize
soybean fields and when other significant flight activity occurs.
The suction traps are approximately
25 feet tall and sample flying aphids within a 30-mile radius. We
collected data from these traps weekly from mid-May through mid-September. One trap has been erected at each of the various sites around the state. Cooperators will empty the contents of the traps weekly and send them to David Voegtlin, Center for Economic Entomology, Illinois Natural History Survey. Results will be posted weekly.
For more information about the soybean aphid, refer to the
weekly issues of the Pest Management & Crop Development
Bulletin and the soybean aphid page on
Please use the following pull-down menu to see trap count results. Choose the year you wish to view and click "See Trap Counts". The table will open in a new window that can be resized.