Santa Clara County's 100,000+ acres of parkland appear to be particularly suited for yellowjackets. The district is working with schools and parks to ease the nuisance of these stinging insects using several techniques. Due to their omnivorous habits, yellowjackets are attracted to picnics where they may show up in great numbers. School children may be pestered by these species during outside lunches. Standing or sitting near a yellowjacket nest can be dangerous too since they are aggressively defended. Unlike bees, yellowjackets don't lose their stinger when they sting and can sting multiple times.
The district currently assists Santa Clara County Parks in managing yellowjackets by destroying their nests.