πŸ“… Seasonal Guide
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Fall Pest Control Guide

September is the single most important month for fall pest prevention. Miss the September treatment window and you'll spend winter dealing with the consequences.

πŸ› Most Active Pests This Season

🀒
Stink Bugs
Begin aggregating on south-facing walls in September. Treatment must happen BEFORE they enter.
🐭
Mice & Rats
Seek warmth as temperatures drop below 50Β°F. October exclusion work is essential.
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Cluster Flies
Enter wall voids in September-October. Perimeter spray prevents the worst invasions.
🐞
Asian Lady Beetles
Aggregate on buildings in October. Yellow/south-facing surfaces attract thousands.
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Spiders
Enter structures in fall seeking prey. Wolf spiders common in September-October.

πŸ”§ Action Checklist

  • September: Most important month: apply perimeter spray for stink bugs, cluster flies, and Asian lady beetles. Inspect exterior for rodent entry points.
  • October: Complete all rodent exclusion work (copper mesh + caulk). Seal chimney and attic gaps against wildlife.
  • November: Set snap traps if rodent activity detected. Check attic for squirrel or bat entry points while it's still comfortable to work up there.

πŸ“… Full Regional Calendar

See month-by-month pest activity for your region

πŸ“… Open Pest Calendar β†’
Published: Jan 1, 2025 Β· Updated: Apr 7, 2026