Brown Marmorated Stink Bug
With recent warmer temperatures, brown marmorated stink bugs are starting to appear in homes and buildings. See our tip sheet on stink bug identification and management in homes.
- Oct. 5 - Important management recommendations for growers who still have late ripening fruit to harvest. Damaged apples have been reported in Golden Delicious and other early ripening varieties harvested from trees at orchard margins.
- Sept. 23 - Nymph and adult trap counts continue climbing, especially in the southwest and Fruit Ridge production areas. Fruit and vegetable growers in the southern Lower Peninsula should be scouting.
- Sept. 16 - Nymphs and adults continue to be captured in traps located in southwest and Fruit Ridge production areas. Fruit and vegetable growers in southern Lower Peninsula should be scouting.
- Sept. 7 - There was an uptick in brown marmorated stink bug nymphs and adults caught in traps this week. Fruit and vegetable growers in the southern Lower Peninsula should be scouting this season.
- Aug. 26 - Fruit and vegetable growers in the southern Lower Peninsula should be scouting for brown marmorated stink bugs this season.
- Aug. 19 - Fruit and vegetable growers in the southern Lower Peninsula should be scouting for brown marmorated stink bug nymphs this season.
- Aug. 12 - With first detection of brown marmorated stink bug nymphs occurring this season in southwest Michigan, fruit and vegetable growers in the southern Lower Peninsula should be scouting for nymphs.
- Aug. 5 - First detection of brown marmorated stink bug nymphs this season in southwest Michigan; fruit and vegetable growers in the southern Lower Peninsula should be scouting for nymphs.
- July 29 - Fruit and vegetable growers in the southern Lower Peninsula should be scouting for brown marmorated stink bug this season.
- Brown marmorated stink bugs are moving into Michigan homes again- What they are, why stink bugs are entering houses, and what you can do about them.
- Report sightings of brown marmorated stink bugs in your home or business - Report sightings of brown marmorated stink bugs to the Midwest Invasive Species Information Network in order to help Michigan fruit, vegetable and ornamental plant growers identify potential hotspots.
- Managing brown marmorated stink bugs in homes - How to prevent and get rid of brown marmorated stink bugs in your home or building.
- New tip sheet on brown marmorated stink bugs for homeowners – A new resource about brown marmorated stink bug identification and management in homes is now available.
The Brown Marmorated Stink Bug (BMSB), Halyomorpha halys (Stål), is an exotic pentatomid species native to Asia. Pennsylvania State University Cooperative Extension first found specimens in Allentown, Pennsylvania, in 1996.
In 1999, a specimen was found in a Rutgers University blacklight trap about 30 miles east of Allentown in Milford, New Jersey. Since that time, specimens have been identified in 29 states, primarily in the Mid-Atlantic region but with additional populations in Oregon and Southern California. Midwestern populations of BMSB were found in Ohio in 2007, Illinois in 2009 and in Michigan in fall 2010. As with many other invasive species, the distribution is likely spread wider than reported.
What crops are affected?
Brown marmorated stinkbug has a host range of over 300 plants including many agricultural and ornamental crops. Feeding damage has been recorded in high value specialty crops including tomatoes, sweet peppers, raspberries, apples, peaches, pears, cherries and grapes (particularly as a contaminant during wine making) as well as damage in sweet corn, green beans and soybeans.
Status in Michigan
The first Michigan detection was in Berrien County in 2010, followed several years later by reports of fruit damage suspected of being caused by BMSB in orchards. Reports from several thousand Michigan residents as of spring 2016 indicate that BMSB populations have built up to nuisance levels in manmade structures in the southern Lower Peninsula. All together, BMSB has been reported in 46 Michigan counties, including one county in the Upper Peninsula.
What to do if you have a suspect BMSB?
Place it in a dry box with tissue paper or in white vinegar and mail or drop off to:
578 Wilson Rd., Room 116
East Lansing, MI 48824
Be sure to include with the specimen the location where you found the insect and your name and contact information (email or phone if no email). See additional tips for submitting insects for identification to MSU Diagnostic Services.
- Brown Marmorated Stink Bug (BMSB): Information for Michigan Residents, tip sheet by MSU’s Paul Both and Diane Brown
- Brown marmorated stink bug moves into the Midwest, tip sheet by MSU‘s Christina DiFonzo and Howard Russell
- Stink Bug Basics from Stop BMSB
- Brown Marmorated Stink Bug Regional Pest Alert by NC IPM Center
- Past articles from MSU Extension’s Fruit & Nut News and Vegetable News
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the AgBioResearch, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.