Pest pressure through the Phoenix year

Updated July 2026

Phoenix's desert environment means pest pressure follows the seasons in ways homeowners in milder climates rarely deal with. Scorpions, ants, and termites each have a predictable pattern worth knowing.

The seasonal pattern

Scorpion activity picks up as temperatures warm in spring and stays elevated through the hot months, since they are most active at night in warm weather and seek cool, damp spots, including inside homes. Ants often invade in larger numbers after monsoon rains, when their outdoor colonies flood and they move indoors seeking dry ground. Termite swarms, when winged termites emerge to start new colonies, commonly happen after rain in spring and again after monsoon rain in late summer, making these two windows worth extra vigilance.

Why desert proximity matters here

Unlike a home surrounded by other developed land, many Phoenix-area properties back up to natural desert, which is exactly where scorpions and other pests live year-round. That is the main reason scorpion control here is often sold as a monthly plan instead of quarterly: the desert supply of scorpions never really goes away, so a one-time treatment or infrequent visit tends to lose effectiveness faster than in other pest categories.

What you can do vs. call a pro

Homeowners can seal visible gaps around doors, windows, and utility penetrations (a scorpion can fit through a gap the width of a credit card), keep firewood and debris piles away from the house, and reduce standing water and dense ground cover near the foundation. Termite treatment, scorpion treatment involving chemical application, and any pest issue that persists after DIY measures are best handled by a licensed pest management professional.

Frequently asked questions