The characteristic malodor associated with Halyomorpha halys and related species is not a constant attribute. This defensive mechanism is primarily activated upon experiencing a perceived threat. Crushing, startling, or otherwise disturbing the insect typically prompts the release of the volatile compounds responsible for the pungent smell.
Understanding the circumstances that trigger this release is crucial for effective pest management within agricultural and residential environments. Minimizing instances of disturbance reduces the likelihood of widespread odor dispersal. This knowledge also aids in the development of control strategies that prioritize non-disruptive methods, contributing to a more pleasant environment.