Pest Index Up 9% YOY in April

PALM BEACH GARDENS, Fla. — The William Blair/PCO Bookkeepers & M&A Specialists total U.S. Pest Index increased 9% year-over-year in April 2026, below the long-term average index growth rate of 10%.

“The Pest Index decelerated in April, following a strong print in March, which was up 13% year-over-year,”  William Blair Equity Researcher Tim Mulrooney said. “The residential, commercial, and termite indices all slowed down by several percentage points in April. Although national average temperatures were slightly warmer this April relative to prior years, it did not materialize into a tailwind for the Pest Index."

Dan Gordon, managing member of PCO Bookkeepers & M&A Specialists, said, “April’s results reflect a moderation in pest activity following a strong March. Importantly, the underlying fundamentals of the pest control industry remain healthy.”

The month’s results by segment include:

• The Residential Pest Index increased 12% year-over-year.
• The Commercial Pest Index increased 6% year-over-year.
• The Termite Index increased 9% year-over-year.
• The Bed Bug Index decreased 2% year-over-year.
• The Mosquito Index increased 6% year-over-year.