Which statement is true regarding yellowjacket traps?

The statement that yellowjacket traps can reduce yellowjacket activity when foraging is true because these traps are designed to attract and capture yellowjackets, particularly during their peak foraging times. When yellowjackets enter the trap, they are unable to escape, effectively decreasing their population in the surrounding area. This is particularly useful for reducing the nuisance posed by yellowjackets, especially during outdoor activities when they are actively seeking food.

Traps are aided by bait that mimics their food sources, making them effective at drawing in foraging yellowjackets. By reducing their numbers, the traps consequently lower the likelihood of yellowjacket encounters. It is important to deploy these traps strategically, generally in areas where yellowjackets are frequently seen, which often leads to a more significant reduction in their activity.

The other statements about yellowjacket traps, while holding some merit, do not accurately reflect the effectiveness and proper usage of these traps in controlling yellowjacket populations.