7 Common Arizona Pests and When to Call in the Pros

Preventing pests from entering and thriving in a home is always more effective and less stressful than dealing with an established infestation. Many preventative actions will help deter a wide range of pests, making a comprehensive approach highly efficient.

• Seal Up Your Home: Pests can enter through the smallest of openings. A thorough inspection of the home’s exterior and interior is crucial. Seal any cracks, crevices, or gaps in the foundation, walls, around windows and doors, and where utility pipes or wires enter the home. Materials like caulk, weather stripping, and steel wool (for larger gaps that rodents might chew through) are effective. Ensure that screens on windows and doors are in good repair and fit snugly. Vents (attic, crawl space, dryer) and chimneys should also be screened to prevent entry by insects, rodents, and even larger wildlife.

   

• Manage Moisture: Many pests, including termites, cockroaches, ants, and rodents, are attracted to moisture. Promptly repair any leaky faucets, pipes (both indoors and under the house), and air conditioner condensate lines. Ensure that sprinkler systems are not spraying directly onto the house foundation and that rainwater drainage (from gutters and downspouts) is directed well away from the home. While Arizona is generally dry, bathrooms and laundry areas can still harbor excess humidity; ensure these areas are well-ventilated.

   

• Smart Landscaping: The area immediately surrounding a home can provide pests with food, water, shelter, and direct pathways inside.

  • Trim tree branches, shrubs, and other vegetation so they do not touch the house walls or roofline. This eliminates bridges for pests like ants, rodents, and scorpions.
    
     
  • Avoid planting dense ground cover directly against the foundation, as this can create moist, hidden areas attractive to pests.
    
     
  • Remove piles of leaves, grass clippings, rocks, and other debris from the yard, especially near the foundation. Store firewood off the ground and as far away from the house as practical.
    
     
  • Consider using yellow-tinted outdoor light bulbs, as these are generally less attractive to night-flying insects, which in turn are a food source for spiders and scorpions.

• Sanitation Savvy: Denying pests access to food and water is fundamental to prevention.

  • Store all food items, including pet food and birdseed, in airtight containers made of glass, metal, or heavy-duty plastic.
    
     
  • Clean up food spills and crumbs immediately from floors, countertops, tables, and in pantries or cabinets. Regularly wipe down these surfaces.
    
     
  • Wash dishes promptly after meals; do not leave them in the sink or dishwasher overnight.
    
     
  • Keep indoor and outdoor trash cans tightly sealed. Empty indoor trash cans frequently, especially those containing food waste. Store outdoor trash cans away from the house if possible.
    
     
  • Reduce clutter in all areas of the home, including garages, attics, basements, and closets. Clutter provides excellent hiding places for many pests.
    
     

• DIY Product Safety in Arizona: If using DIY pest control products, safety is paramount, especially given Arizona’s climate.

  • Read Labels: Always read and meticulously follow all product label instructions regarding application, safety precautions, storage, and disposal. The label is the law.
    
     
  • Protective Gear: Wear appropriate personal protective equipment (PPE) as recommended on the label, which may include gloves, safety goggles, long-sleeved shirts, long pants, and sometimes a respirator. Even in the Arizona heat, this gear is vital to prevent chemical exposure.
    
     
  • Preparation: Before application, remove or cover food, dishes, utensils, children’s toys, and pet items from the treatment area. Ensure pets and children are kept away from the area during and after application for the time specified on the label.
    
     
  • Ventilation: If applying products indoors, ensure good ventilation by opening windows or using fans, if the label permits.
    
     
  • Targeted Application: Apply products only to targeted areas where pests are active or hiding, as indicated on the label. Avoid broad, indiscriminate spraying. Do not overapply, as this can increase risks and is often not more effective.
    
     
  • Weather Conditions: Avoid applying outdoor pesticides on windy days to prevent drift to non-target areas, or if rain is imminent (which could wash the product away or into waterways). Arizona’s intense heat can also affect pesticide efficacy, potentially causing faster degradation or volatilization. Consider applying during cooler parts of the day, like early morning or late evening.
    
     
  • Storage and Disposal: Store all pesticides in their original, labeled containers, tightly sealed, and in a cool, dry, secure location out of reach of children and pets. Dispose of unused pesticides and empty containers according to label directions, often through local household hazardous waste collection programs.