Spray nests at dusk with pressurized wasp killer

Steps

1. Wait until dusk or very early morning when wasps are inside the nest and less active.
2. Wear long sleeves, pants tucked into boots, gloves, and a hat.
3. Stand 15-20 feet away and spray directly into the nest entrance, soaking it thoroughly.
4. Retreat immediately and monitor from a safe distance.
5. If no activity after 24 hours, knock down the nest and seal it in a trash bag.

Why It Works

Pressurized wasp sprays deliver insecticide from a safe distance and kill on contact. Treating at dusk ensures most colony members are inside the nest. Early spring nests (golf-ball size) are the easiest and safest to treat before colonies reach peak size in summer.

Tips

• Never attempt during daytime when foragers are active and aggressive
• Choose products with a "Caution" signal word (least toxic category)
• For ground-nesting yellow jackets, use insecticide dust applied into the entrance at night instead
• If the nest is larger than a softball or in a wall void, call a professional