As their name implies, stink bugs emit a pungent odor when threatened or killed. They appear to be brownish grey in color and have six legs. Stink bugs are typically about ¾ of an inch in length and they feed on fruit and other vegetation. During the winter months, is when they typically seek shelter in homes. During the warm summer months, they are known to infest areas outside of homes in mass numbers.When stink bugs multiply they can cause several issues. They are known for destroying gardens and agriculture, as they are resistant to many pesticides. These are a non aggressive species towards humans, however their existence in and around your home can be a major irritation and nuisance.