An update of the soybean aphid and brown marmorated stink bug monitoring program

For August 16-19, Ed Seymore reported that surveyed fields in the following counties had little to no soybean aphids, with the exception of Gloucester in the Wood’s X area: Augusta (0), Albemarle (0), Buckingham (0), Caroline (1-5), Charles City (0), Clark (1-5), Culpeper/Fauquier (6-39) aphids/plant), Gloucester (150-249), Goochland (0), Henrico (0), King and Queen (0), King William (0), Lancaster (0), Mathews (1-5), Middlesex (0), Rockingham (0), and Shenandoah (0). The economic threshold for soybean aphid is 250 aphids/plant. Under ideal conditions, soybean aphid populations can double every 2 days. Very low numbers (about 1 per 15 sweeps) of brown marmorated stink bugs were detected in one soybean field in central Culpeper County.

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