Yellowjacket wasps prey on other insects and scavenge on human food and garbage. Yellowjackets defend their nests, as do other social wasps and bees, but are more likely to sting if disturbed while foraging. Learn how to distinguish between yellowjackets, wasps and look-alikes.

Stings generally cause pain and short-term injury, but some people suffer severe allergic responses. Prevent injury by avoiding wasps and removing food sources. Trapping or nest treatment can reduce populations. Find out more about reducing these pests around the house and yard. In-ground yellowjacket nests are eliminated free of charge for residents of Marin and Sonoma counties (if the location of the nest is known and marked) by Marin/Sonoma Mosquito and Vector Control District; check out their Yellowjacket Control Program.

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