Yellow Jackets nest in voids, such as wall and ceiling voids, as well as in the ground. They also make large paper envelope nests that you can sometimes see under eaves, in trees, or other vegetation. They increase the size of their nests continually throughout the year. The often chew through sheet rock and break through into living spaces when they nest in attic and wall voids. They get more aggressive in the late fall and early winter. The last set of eggs are over wintering females. Every nest dies out each winter and there is fierce competition every spring.
Bald Faced hornets are a larger cousin of the yellow jackets and are typically more aggressive, they will nest in all the same areas, but are found more commonly in vegetation. Hornet is a term used for any large wasp.
To keep our customers from getting stung, we recommend that the nests of Bald Faced hornets and Yellow Jackets, be left in place for a few days after each service, to allow all the wasps from the nest to get back into their nest, contact our control materials and die off.
We offer wasp prevention programs that cut down or eliminate most wasp activity on or in a home.
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Yellow Jackets are wasps and they are predators, they will eat carbohydrates but they also eat meat. Exposed nests are protected by paper envelopes.

Bald Faced hornets, the big bad cousin to the Yellow Jacket |