Rodent Control in Phoenix, AZ

Why do canals, old farmland and the river corridor matter for rodents?

Roof rats use irrigation canals and food around homes as travel routes, according to county and press sources. Neighborhoods beside canals, farm edges and the Salt River bed offer more of those routes. A technician looks at what runs beside your lot before deciding where to trap or seal.

Laveen is a good example of the setting. It is a village of 48 square miles of farm edge and new subdivisions, and the Cheatham dairy south of Baseline Road closed in 2003, with the land going to developers. New houses beside leftover fields are not the same as houses deep in a city grid, and the technician starts from what is next door.

The Salt River bed is another corridor. The Rio Salado Habitat Restoration Area covers 600 acres from 24th Street to 19th Avenue, with marsh and burrowing owls, and nearby lots sit beside a large stretch of habitat. This is context rather than a measured rodent count, and no sourced figure compares neighborhoods.

Estrella and Tolleson combine farmland history with warehouse corridors. Commercial buildings in those areas need their own approach, covered under commercial pest control.

What is different about rats on the Valley's older lots?

Central Phoenix, Arcadia and Ahwatukee are named by the county for roof rat activity tied to older citrus, and residents of Tempe and South Tempe have also reported roof rats. Mature trees and palms give rodents cover close to a roof, so the first check is usually the tree line, not the floor.

Old lots tend to have the old trees. A technician looking at a house in central Phoenix will check where fruit trees, palms and wall tops meet the structure, and where wiring or utility lines come in.

Tempe residents were already organizing against roof rats in 2010, which shows that the problem is not new and is not limited to the three county-named areas.

What can I do before the technician comes?

Pick ripe citrus, clear fallen fruit, store pet food and bird seed in sealed containers, and trim branches that touch the roof. Do not seal openings yourself while animals may still be inside. Note where and when you hear noise, because that helps the technician find the route quickly.

Small steps matter. Maricopa County asks residents to clear ripening citrus, and the same logic applies to anything edible left outside.

If you find droppings, wear gloves and a mask and keep children and pets away. A technician will advise on cleanup if the amount is large.

What does a technician check inside the house and garage?

A technician checks the attic, garage, utility penetrations, vents and the places where wires and pipes enter, plus cabinets and stored food if activity is indoors. The aim is to find the route and the nest area, because trapping without finding the entry point only starts the cycle again.

In the attic, the technician looks for droppings, disturbed insulation, gnawed wires and nesting material. Wiring damage is worth flagging to an electrician, and the technician will tell you if they see it.

In the garage, stored boxes, pet food and the gap under the door are the usual stories. Dry goods in sealed containers and a door sweep that closes properly cost little and remove a lot of the appeal.

Outside, the walk-around follows the same logic as the roofline check: what touches the house, what runs to it, and what sits against it.

• Attic access, insulation and wiring
• Roof vents, eaves and utility penetrations
• Garage door seal and stored items
• Wall tops, rock fences and tree limbs near the roof