Bay Area homeowners who’ve dealt with yellow jackets or wasps know how quickly a comfortable outdoor space can become inhospitable. The good news: a little preparation in early spring goes a long way. Here’s how to get ready before the season peaks.
Inspect for Last Year’s Nest Sites
Yellow jackets and paper wasps often return to the same general areas year after year — not because they reuse old nests (they don’t), but because the same features that made a site attractive (a sheltered opening, rodent burrow, or undisturbed shrub) remain attractive to new queens searching for nest sites in spring.
Walk your property and note areas where you found wasp or yellow jacket activity last year. Under eaves, along fence lines, in dense shrubs, around deck skirts, and near the foundation are common sites. Mark them for monitoring as spring arrives.
Address Rodent Burrow Holes
Underground yellow jacket nests are almost always in old rodent burrows. If you have ongoing rodent activity, you’re providing habitat for yellow jackets. A professional rodent control program that includes burrow elimination is one of the best long-term yellow jacket prevention strategies.
Timing of Professional Treatment
Small nests found in spring are far easier and safer to treat than the large, aggressive colonies of late summer. If you spot early-season nest building — a queen paper wasp starting a small nest under an eave, or early yellow jacket activity near a ground opening — addressing it early saves significant headaches later.
ATCO is ready to assess stinging insect activity on your property. Contact us for an inspection and a plan before season peaks.