Wasp and Hornet Nest Treatment

Chemical
Effectiveness:
Cost Level
Low
Environmental Impact
Medium
Resistance Risk
Low
Target Pests
8 species

Target Pests (8)

Common NameScientific NameCategory
Paper WaspPolistes spp.Stinging Insects
Yellow JacketVespula spp.Stinging Insects
Bald-faced HornetDolichovespula maculataStinging Insects
European HornetVespa crabroStinging Insects
Mud DauberSceliphron spp.Stinging Insects
Honey BeeApis melliferaStinging Insects
Africanized HoneybeeApis mellifera scutellataStinging Insects
Bumble BeeBombus spp.Stinging Insects

Application Method

IMPORTANT: Honey bees and bumble bees are beneficial pollinators. Contact local beekeepers for relocation when possible before considering treatment. For Africanized honeybees, mandatory personal protective equipment required due to extreme defensive behavior - never attempt removal without full bee suit and experience. For wasps and hornets: Treat active nests with insecticide formulated for flying insects. For exposed nests (paper wasps, bald-faced hornets): use aerosol wasp/hornet spray with 15-20 foot reach to treat from safe distance. Spray nest thoroughly until saturated, focusing on nest opening. For yellow jacket ground nests: apply dust formulation (deltamethrin, permethrin) directly into entrance hole at dusk when wasps inside, then seal entrance. For aerial nests in trees or structures: use professional-grade aerosol or spray. Treat in evening or early morning when wasps are less active and more are in nest. Wear protective clothing. Remove nest after all wasps dead (24-48 hours) to prevent reuse.

Timing

Treat as soon as nests discovered. Most effective in evening when wasps have returned to nest. Early season treatment easier when nests small.

Frequency

One-time treatment typically eliminates colony. Monitor area for new nest construction. May need follow-up treatment if nest not completely eliminated.

Preparation Required

Locate nest and identify wasp species. Assess nest size and accessibility. Plan approach and escape route. Have appropriate protective gear and treatment product. Treat in evening when wasps less active.

Follow-up Required

Monitor nest from distance for 24-48 hours. Remove dead nest after confirming all wasps eliminated to prevent reuse next season. Seal any structural entry points where wasps were entering. Inspect area for additional nests.

Safety Precautions

  • Wear protective clothing including face protection
  • Treat from safe distance (15-20 feet for aerial spray)
  • Never treat nests during day when wasps are active and defensive
  • Have escape route planned before approaching nest
  • Do not stand directly below aerial nests while treating
  • Keep children and pets indoors during treatment
  • Be prepared for allergic reactions - have epinephrine available if allergic
Important Disclaimer: The information provided in this knowledge base is for educational and reference purposes only. Pest management professionals should always consult current product labels, Safety Data Sheets (SDS), manufacturer instructions, and applicable local, state, and federal regulations as the definitive source of truth. Product formulations, application methods, safety requirements, and regulations may change over time. This information may be out of date and should not replace professional judgment, proper training, or required licensing and certifications.