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What are Asian beetles, and how are they different from ladybugs?

Q.

Asian beetles look like ladybugs but are slightly larger, more aggressive, and emit a foul odor when disturbed. They often invade homes in large numbers.

Are Asian beetles harmful to people or pets?

Q.

While not dangerous, they can bite, stain surfaces, and cause allergic reactions in some individuals.

When do Asian beetles appear in Ontario homes and cottages?

Q.

They become active in late fall as they search for warm places to overwinter, and may re-emerge on sunny winter or early spring days.

What attracts Asian beetles to homes and buildings?

Q.

They’re drawn to light-colored buildings, sunlit walls, and warm, upper-level areas—especially in rural or wooded regions near farmland.

Boxelder Bugs - Q & A

Asian Beetle ladybug
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