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Brown Marmorated Stink Bug

Brown Marmorated Stink Bug. Outline. History/Distribution Identification Life History Why is it Important? Control. History/Distribution. Originally from e astern Asia, incl. China, Korea, and Japan. First arrived in PA in mid-1990’s, steadily spreading from there. USDA-NIFA SCRI

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Brown Marmorated Stink Bug

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  1. Brown Marmorated Stink Bug

  2. Outline • History/Distribution • Identification • Life History • Why is it Important? • Control

  3. History/Distribution • Originally from eastern Asia, incl. China, Korea, and Japan

  4. First arrived in PA in mid-1990’s, steadily spreading from there USDA-NIFA SCRI www.stopbmsb.org Now found in 40 states and 1 province

  5. History/Distribution • Particularly high numbers in eastern U.S. in 2010 • Caused economic loss in some crops

  6. History/Distribution • First found in St. Paul (Ramsey Co.) in Nov. 2010 • Probably associated with package received from eastern U.S.

  7. Distribution in MN • Nearly all BMSB have been found in homes/buildings, just 1 or 2 at a time • Infestation found in Chisago Co. in 2013 • Nymphs present -evidence of overwintering

  8. BMSB Survey in MN • Survey using pyramid traps in 2014 • Set up throughout MN • MDA looking for volunteers to help monitor traps B. Butler

  9. Stink Bug Identification • Stink bugs are shield or badge shaped • Possess large triangular plate on back

  10. Stink Bug Identification Possesses needle-like mouthparts

  11. BMSB Identification • ½ inch long • Mottled brownish and grayish • Has banded antennae • Banded on edge of abdomen • Dark colored veins Whitney Cranshaw

  12. BMSB Identification • Metallic greenish gold flecks on underside of BMSB

  13. BMSB Identification • Young nymphs yellowish brown, mottled with black and red David R. Lance

  14. BMSB Identification • Older nymphs darker, with light bands on dark legs and antennae • Start to develop green gold flecks on underside as older nymph Susan Ellis

  15. Don’t Confuse BMSB With… Other true bugs Western conifer seed bug Squash bug

  16. Don’t Confuse BMSB With… Native stink bugs Native stink bugs Gerald J. Lenhard, LSU

  17. Comparison of insects that might be confused with BMSB Brown marmorated stink bugs Native stink bugs Masked hunter BEB WCSB Squash bug

  18. Which is BMSB? • Insect A • Insect B • Insect C A B C

  19. Life Cycle Feeding occurs Active Hibernating

  20. Why Is It a Pest? Gary Bernon • Feeds on more than 300 plants • Ornamental and nursery plants, e.g. crabapple, maple, rose, viburnum, catalpa, hackberry, dogwood, willow, lilac • On leaves generally appears as small stippled areas and/or necrotic areas

  21. Why Is It a Pest? • Crop pest: - Fruits, e.g. apple, blackberry, peach, grape, raspberry - Vegetables, e.g. sweet corn, bean, peas, tomato, pepper - Field crops, e.g. soybeans, field corn Gary Bernon

  22. Why Is It a Pest? • Nuisance invader in structures in fall, like boxelder bugs and lady beetles • Can be present in large numbers • Can emit pungent odor Susan Ellis Susan Ellis

  23. Control • Pesticides are main option for now • Relying solely on pesticides not long-term solution • Research into possible biocontrol agent – tiny parasitic wasp that attacks eggs Susan Ellis

  24. Where in the U.S. are BMSB most common? • Eastern U.S. • Upper Midwest • Southern U.S. • Pacific Northwest • Not sure

  25. On about how many different kinds of plants does BMSB feed? • 10 • 30 • 300 • 3000

  26. Questions?

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