Cicada Killer Wasps: Annual Nuisance in Sandy Beds

Large wasps digging in sandy flower beds near doors are cicada killers—solitary, non-aggressive. Males patrol territories but can't sting. Females paralyze cicadas for larvae.

Lifecycle

• Adults: July-September (1 generation/year).
• Nests: 6-10" deep, U-shaped mound.
• Prey: Cicadas (1-2 per cell).
• Overwinter: Mature larvae in cocoons.

Management Options

1. Tolerate: They're pollinators; rarely sting. Active 6-8 weeks.
2. Deter nesting: Mulch beds heavily (3-4"), avoid bare sand.
3. Treat nests (if necessary): Dust carbaryl/bendiocarb into entrance at night (<60°F). Wear protection.
4. Male capture: Net males during day (no sting risk).

They prefer sparse, well-drained soil. Improving soil density reduces nesting.