There’s a reason the pest management industry — and the UC ANR IPM program, which is the authoritative source for pest management guidance in California — has shifted strongly toward Integrated Pest Management. The science is clear: IPM produces better long-term outcomes for homeowners, for the broader community, and for the environment.
The Research Behind IPM
Decades of research have documented why broadcast pesticide applications often underperform targeted IPM approaches:
- Many pest populations develop resistance to pesticides with repeated exposure
- Broad applications kill natural predators and beneficial insects along with target pests
- Pests that survive treatment often repopulate faster than before (competitive release)
- Root causes — structural gaps, moisture, food sources — remain unaddressed
IPM addresses these limitations by focusing on prevention and using pesticides only when necessary, in targeted applications designed to minimize ecological disruption.
IPM in Practice: Bay Area Examples
Ants: Instead of perimeter spraying (which kills foragers but not the colony), IPM uses gel bait that workers carry back to the queen — eliminating the source.
Cockroaches: IPM combines targeted gel bait in harborage areas with moisture and sanitation recommendations that reduce conditions driving cockroach activity.
Rodents: IPM emphasizes exclusion — sealing entry points — as the primary and most durable control method, with trapping as a secondary tool.
What IPM Means for Your Home
IPM typically means fewer pesticide applications over time because the conditions that allowed pests to establish are changed. It means better long-term outcomes and a pest management relationship built on problem-solving rather than recurring treatments that never fully resolve the issue. ATCO has practiced IPM principles since 1985. Contact us to experience the difference.

