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High Threat Season: Summer – Early Fall
Yellow Jackets, Bald-Faced Hornets & Paper Wasps
WASPS & HORNETS
Wasps become aggressive in late summer when colonies peak. Yellow jackets nest underground and in walls; hornets build large paper nests in trees and eaves.
SIGNS OF INFESTATION
- Visible nest on eaves, trees, or in the ground
- High wasp activity around a specific area
- Chewed wood on fences or decks (paper wasp material)
- Wasps entering and exiting a wall void
FAST FACTS
Yellow jacket colonies can reach 5,000 workers by late summer.
Unlike bees, wasps can sting multiple times.
Bald-faced hornets are actually a type of yellow jacket.
Queens are the only wasps to survive winter — starting new colonies each spring.
PREVENTION TIPS
- Seal gaps in siding, eaves, and rooflines before spring.
- Keep outdoor food and drinks covered.
- Remove fallen fruit from trees promptly.
- Check for nests early in spring when colonies are small.
DEALING WITH WASPS & HORNETS?
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