BMSB (ASIAN STINK BUG)

Asked October 5, 2017, 9:39 PM EDT

I HAVE READ THAT THE Samurai wasp, WAS RELEASED IN OREGON TO COMBAT THE BMSB (ASIAN STINK BUG) PROBLEM. WE HAD LITERALLY MILLIONS OF THEM IN OUR NEIGHBORHOOD THE LAST FEW YEARS, SO SOMETHING DRASTIC HAD TO HAVE HAPPENED TO EXPLAIN THIS MASSIVE DECREASE. WE HAVE MANY MUD NESTS ON THE OUTSIDE OF OUR HOUSE & I AM WONDERING IF THESE COULD HAVE BEEN BUILT BY THE Samurai wasp.

Clackamas County Oregon insect issues bmsb

1 Response

The Samurai wasp is still in research labs. However, “wild” specimens, which probably arrived along with the invasive BMSB, are active in landscape. It’s very likely that considerable time will be required before a noticeable change is seen in their numbers.

Unofficial reports to our office from the public note that BMSB populations in a specific neighborhood or even individual residential lots, tend to vary from year to year. Areas with the highest populations tend to be near heavily wooded regions.

The Samurai wasps spend their entire life either as larvae (youngsters) growing inside BMSB eggs or, as adults, searching for BMSB eggs. The mud nests are likely made by mud dauber wasps.