At Valor Pest Solutions, we understand that Minnesota’s changing seasons bring more than shifts in weather. Each season comes with its own set of common pests, from carpenter ants in the spring to rodents in the winter. 

Use this Minnesota Pest Calendar to learn which pests are most active each month, the potential health risks they pose, and how to keep your home protected year-round.

Spring (March–May)

As temperatures rise and warm weather returns, pests emerge during the Spring in search of food sources, moisture, and shelter.

Active Pests in Minnesota During the Spring

• Ants (especially carpenter ants)
• Spiders
• Flies
• Mites
• Springtails
• Earwigs

Why These Pests Emerge in the Spring

Melting snow and spring rains create damp areas around foundations and basements, which are ideal for pest activity. Ants begin exploring for food, spiders move indoors, and earwigs hide in leaf litter, soil, and wood piles.

Valor’s Prevention Tips

• Seal cracks, gaps, and open doors to block entry points.
• Remove leaf litter and debris from the perimeter of your home.
• Schedule a spring pest control treatment to eliminate early infestations before they grow.

Summer (June–August)

During Minnesota’s warmer months, pests are most active. Increased temperatures and outdoor activities mean more opportunities for pests to bite, sting, and spread diseases.

Active Pests in Minnesota During the Summer

• Mosquitoes
• Wasps and bees
• Flies
• Ticks
• Ants
• Cockroaches
• Spiders
• Mice

Why These Pests Emerge in the Summer

Warm temperatures and plentiful food sources draw pests in large numbers. Wasps build nests around eaves, decks, and trash bins. Mosquitoes breed in standing water, while flies and cockroaches thrive in areas where food and moisture are readily available.

Valor’s Prevention Tips

• Keep trash bins sealed tightly.
• Eliminate standing water around your yard and trees.
• Use safe, pet-friendly pesticides for tick and flea prevention.
• Schedule a summer pest control treatment with Valor Pest Solutions to protect your home and family.

Fall (September–November)

As temperatures cool and early fall sets in, pests seek warmth indoors. This season brings a surge of nuisance pests and rodents looking for shelter before winter.

Active Pests in Minnesota During the Fall

• Boxelder bugs
• Asian lady beetles
• Spiders
• Beetles
• Rodents (mice and squirrels)
• Centipedes
• Millipedes

Why These Pests Emerge in the Summer

Boxelder bugs and Asian lady beetles cluster on sunny walls and slip inside homes through small openings. While these insects are mostly harmless, they can appear in large numbers and quickly become a nuisance. Meanwhile, rodents invade attics and basements, chewing on wires and contaminating food.

Valor’s Prevention Tips

• Seal cracks and repair window screens before temperatures drop.
• Store food in sealed containers and keep counters clean.
• Inspect attics and crawl spaces for rodent nests.
• Schedule fall pest control treatments to stop invasions before they start.

Winter (December–February)

During winter, pests don’t disappear—they simply move inside. Rodents, spiders, and cockroaches become the primary threats, posing potential health risks and causing damage to property.

Active Pests in Minnesota During the Winter

• Rodents (mice and rats)
• Spiders
• Cockroaches
• Bed bugs
• Head lice

Why These Pests Emerge in the Winter

As temperatures fall, pests search for warmth and food sources. Mice can squeeze through openings as small as a dime, while cockroaches hide near appliances and plumbing where moisture is present. 

Valor’s Prevention Tips

• Keep food sealed and clean up crumbs immediately.
• Set traps in attics, basements, and storage areas.
• Seal gaps around doors, vents, and utility lines.
• Schedule a winter pest control treatment to maintain a pest-free home.

Year-Round Pest Prevention in Minnesota

Pests are active year-round, and Valor Pest Solutions is here to help every season. Our customized pest control treatments target Minnesota’s toughest pest species while keeping your children, pets, and the environment safe.

Whether you’re dealing with beetles, mites, mosquitoes, rodents, or any other pests, our team will help you eliminate sources, prevent new infestations, and protect your home for the long term.