PEST LIBRARY

Identify common Minnesota pests, spot the warning signs, and know when it's time to call in the professionals.

Carpenter Ants & Pavement Ants

ANTS

Minnesota's most common household pest. Carpenter ants can cause structural damage; pavement ants invade kitchens and pantries.

Season: Spring – FallLearn More

High Threat

House Mouse & Deer Mouse

MICE

Mice enter Minnesota homes as temperatures drop. They chew wiring, contaminate food, and can carry hantavirus and salmonella.

Season: Year-round (worst in fall/winter)Learn More

High Threat

Norway Rat

RATS

Norway rats burrow under foundations and enter through sewers. They're larger and more destructive than mice, capable of chewing through pipes and wiring.

Season: Year-roundLearn More

High Threat

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.

Season: Summer – Early FallLearn More

High Threat

Cimex lectularius

BED BUGS

Bed bugs are expert hitchhikers — spreading through luggage, used furniture, and clothing. They're notoriously difficult to eliminate without professional treatment.

Season: Year-roundLearn More

High Threat

German Cockroach

COCKROACHES

The German cockroach is the most common and difficult-to-eliminate roach species. They reproduce rapidly and develop resistance to pesticides, making professional treatment essential.

Season: Year-roundLearn More

Low–Medium Threat

Common House Spider, Wolf Spider & More

SPIDERS

Most Minnesota spiders are harmless, but an infestation signals a larger insect problem. Wolf spiders and fishing spiders can be alarming in size.

Season: Year-round (peak in fall)Learn More

FOUND YOUR PEST?

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