Brown Marmorated Stink Bug

Asked November 2, 2018, 11:45 AM EDT

I'm not complaining, but what happened to the population of the brown marmorated stink bug this year? I noticed far fewer of them on my vegetable plants and many less trying to get into my house this fall. Was this the case elsewhere in Maryland? Did the wet weather do them in, or are predators finally bring things into balance?

Howard County Maryland vegetables pest insects and mites

1 Response

From 9/28/18 UME IPM Report by Stanton Gill:
http://extension.umd.edu/sites/extension.umd.edu/files/_docs/programs/ipmnet/18Sep28L.pdf
Remember 7 to 8 years ago when brown marmorated stink bug was on everyone’s hate list? They were everywhere in gardens, houses, garages, and commercial buildings. Now they show up with a few here and few there. Actually, BMSB moved on across the United States and into the Mid-west and South East. The BMSB populations collapsed for many reasons here in Maryland including weather impact and a whole lot of predators and parasites developing a taste for BMSB. In the first couple of years, native enemies were not well adapted to BMSB and, as a result, they were not effective in keeping BMSB from damaging crops. This situation has changed with predators and parasites adapting to feeding this bug species.

See page 7 to learn about exotic wasp parasitoid that is helping to control BMSB: http://extension.umd.edu/sites/extension.umd.edu/files/_docs/programs/ipmnet/18Sep21L.pdf jt