Brown Marmorated Stink Bug (BMSB)

Image Citation:(?) David R. Lance, USDA APHIS PPQ,

This true bug in the insect family Pentatomidae is known as an agricultural pest in its native range of China, Japan, Korea and Taiwan.

BMSB becomes a nuisance pest both indoors and out when it is attracted to the outside of houses on warm fall days in search of protected, overwintering sites. BMSB occasionally reappears during warmer sunny periods throughout the winter, and again as it emerges in the spring.

Related Links

  • Brown Marmorated Stink Bug - Penn State Photo
    Brown Marmorated Stink Bug

    Source: Penn State Entomology

    The brown marmorated stink bug (BMSB), an insect not previously seen on our continent, was apparently accidentally introduced into eastern Pennsylvania.

    Read More


  • Brown Marmorated Stink Bug Factsheet
    Brown Marmorated Stink Bug (Halyomorpha halys)

    Source: County of Los Angeles Agriculture Department

    Attacks over 60 species of plants. Feeding creates pitted and discolored surfaces on fruits and vegetables, and stippled areas on the leaves.
    H. halys is a vector of Paulownia Witches’ Broom Disease in Asia.

    Download Factsheet