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Photographer: James Smith
Source: Washington State University Extension, James Smith
Cover photo: Todd Murray

Brown marmorated stink bug

Halyomorpha halys

Origin: Native of East Asia

Impact: The brown marmorated stink bug (BMSB), Halyomorpha halys, is an invasive insect that damages fruit, vegetable and ornamental crops in North America. Where BMSB becomes established, it causes severe crop and garden loses and becomes a nuisance to people when the brown marmorated stink bugs move indoors through cracks and openings to overwinter.

Brown marmorated stink bug was accidentally imported to the North America in the late 1990s. BMSB has since become well established in the mid-Atlantic States, in addition to Los Angeles, California and Portland, Oregon.

This species moves rapidly to new locations by hitchhiking on vehicles and planes. The brown marmorated stink bug has been detected in the State of Texas.

Learn More:
Species Profile Page

Report Form

If you have spotted Halyomorpha halys (Brown marmorated stink bug), use this report form to send an email to the appropriate authorities.

Your Name


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Latitude: Longitude: in decimal degrees

Did You Collect a Specimen?
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Host Plant
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Comments: Describe the species, impact, infestation or generally what you are seeing.

Please upload a photo of the specimen or the site where the specimen was seen. NOTE: The photo file must be no larger than 2 MB in size.

NOTE: We are expriencing an issue in which after you click on the "Submit Report Now" button below, you will be directed to a blank page. HOWEVER, don't worry, your report will be submitted! (You may simply close the blank page.)