The Black Jacket Wasp is a type of social wasp commonly associated with the family Vespidae. These wasps are closely related to yellowjackets and hornets. They are known for their aggressive defense of nests and their ability to sting multiple times when threatened.
Identification
Black jacket wasps typically have dark black bodies with subtle yellow or white markings. Adults measure between 1/2 and 3/4 inch in length. Like other wasps, they have narrow waists connecting the thorax and abdomen.
Distribution and Habitat
These wasps are found throughout North America and are commonly seen in gardens, parks, wooded areas, and residential landscapes. They often build nests in soil cavities, wall voids, tree hollows, or sheltered areas of buildings.
Life Cycle and Behavior
Colonies begin each spring when a fertilized queen emerges from overwintering and establishes a nest. Worker wasps soon develop and take over the duties of foraging and nest expansion. Colonies may contain hundreds of workers by late summer.
Pest Status
Black jacket wasps can be nuisance pests when nests occur near homes or outdoor gathering areas. Their defensive behavior may pose a risk of stings to humans and pets.
Prevention
- Seal cracks and openings around structures.
- Keep outdoor food and garbage containers covered.
- Inspect property for developing nests during spring.
Control
Active nests located near living areas may require professional pest control treatment to safely eliminate colonies.