Are Banded Alder Borers Dangerous to Humans? Assessing Risks to Human Safety

The banded alder borer (Rosalia funebris) is a strikingly beautiful beetle native to the Pacific Northwest. Often found on alder, ash, and California laurel trees, these insects flaunt their vibrant white-blue and black coloration from March to August [1]. Although they may look intimidating, banded alder borers are not considered dangerous to humans. These beetles … Read more

Banded Alder Borer: Essential Facts & Tips for Pest Control

The banded alder borer (Rosalia funebris) is a visually striking beetle native to the Pacific Northwest. Often encountered between March and August, this insect is characterized by its bold white-blue and black coloration, making it stand out among other beetles. They primarily infest alder, ash, and California laurel trees, with occasional appearances on other hardwoods … Read more

Do Banded Alder Borer Bite? Debunking Myths & Understanding Behavior

The banded alder borer (Rosalia funebris) is an exotic-looking beetle that may be encountered from March to August in the Pacific Northwest. With their striking white-blue and black coloration, these insects can often be found on alder, ash, and California laurel trees, among other hardwoods1. A common concern surrounding beetles like the banded alder borer … Read more