Brown Marmorated Stink Bug Populations Patchy but Some Local Populations are Large
Posted: August 7, 2012
I found stink bugs, but one thing became quite clear: stink bugs are present and very active, but they are not everywhere. The picture that emerged was that stink bugs can be found in most corn and soybean fields in low numbers, but it is those fields that border the woods where populations look to be the strongest. For example, I found a few corn and soybean fields near New Danville that had particularly large populations. These fields had woods all along one side of the fields and stink bugs populations were the largest by this wood line. The soybean fields were definitely over the economic threshold (2.5 stink bugs per 15 sweeps in narrow row beans, 3.5 stink bugs per 15 sweeps in wide row beans), but populations were only on the edge, so I would have recommended a border treatment just along that edge of the field adjacent to the woods. Because stink bugs are not everywhere, scouting will be the key to detecting populations and determining whether they should be treated. I encourage you to scout your fields and look for the localized populations. Remember that we could use your help tracking stink bug populations. If you have populations you would like to report, please let us know by visiting the stinkbug info site .
- Extension Specialist