Bald-Faced Hornet
Dolichovespula maculata
Bald-faced hornets are large, black wasps with distinctive white markings on their face and abdomen tip. They build large, enclosed, gray paper nests that can exceed basketball size by late summer. Ne...
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How to Identify Bald-Faced Hornet
Bald-faced hornets are large, black wasps with distinctive white markings on their face and abdomen tip. They build large, enclosed, gray paper nests that can exceed basketball size by late summer.
Bald-faced hornets are large, black wasps with distinctive white markings on their face and abdomen tip. They build large, enclosed, gray paper nests that can exceed basketball size by late summer. Nests have a single entrance hole near the bottom.
Bald-Faced Hornet Behavior & Habits
Understanding how bald-faced hornet behave helps prevent infestations
Bald-faced hornets are extremely aggressive when defending their nest. They can sting repeatedly and will pursue perceived threats. Colonies can contain 400-700 workers by late summer. They're beneficial predators but their aggression makes nests near human activity dangerous.
Bald-Faced Hornet Risks & Dangers
What bald-faced hornet can do to your health and property
Health Risks
Bald-faced hornet stings are particularly painful due to higher venom volume. They're aggressive defenders and can mobilize many workers to attack. Stings can cause severe allergic reactions and multiple stings are dangerous even without allergies.
Property Damage
Large nests attached to structures can cause cosmetic damage. Dead nests may attract other pests if not removed.
Signs of Bald-Faced Hornet Infestation
Look for these indicators in your home
Bald-Faced Hornet in Boise & the Treasure Valley
Bald-faced hornets are common in wooded areas around Boise, Eagle, and the foothills. Their nests are often discovered during fall leaf drop or when someone accidentally disturbs them while trimming vegetation.
How We Eliminate Bald-Faced Hornet
Professional treatment for complete elimination
Bald-faced hornet nest removal requires professional protective equipment due to their extreme aggression. Treatment is typically done at night when hornets are inside the nest. We return to remove the nest structure after confirming colony death.
How to Prevent Bald-Faced Hornet
Steps you can take to reduce the risk of infestation
Bald-Faced Hornet Questions Answered
Common questions about identification, prevention, and treatment
How dangerous are bald-faced hornets?
Bald-faced hornets are among the most aggressive stinging insects in Idaho. They will chase and sting repeatedly to defend their nest. Professional removal is strongly recommended.
Similar Pests
Learn about other pests in this category