The flea-tick-chigger category covers three ectoparasites that share residential treatment approaches but have completely different biology and seasonality. Austin has high pressure on all three, and the treatments that work for one are often inadequate for the others.

Fleas (Ctenocephalides felis, the cat flea — which feeds on dogs, cats, and humans) are present in any yard with regular wildlife traffic. Austin yards see opossums, raccoons, deer, feral cats, and squirrels — all carriers. Flea populations build through summer and peak in late summer/early fall.

Ticks in central Texas are dominated by the lone star tick (Amblyomma americanum), which has expanded dramatically in the past 15 years and is now the most common tick species in the Austin metro. Lone star tick bites are associated with alpha-gal syndrome (red meat allergy) — a serious clinical issue. Brown dog ticks and American dog ticks are also present.

Chiggers (Trombicula spp.) are larval mites that feed on lymph rather than blood, leaving the characteristic intensely itchy welts in clusters around the ankle, waistband, and any tight clothing contact point. They’re in any untreated tall grass in central Texas from May through October.

Treatment for residential properties

Yard treatment. The standard professional approach is a power-spray application of a residual pyrethroid + IGR (insect growth regulator) combination to the high-pressure areas: shaded turf, foundation plantings, mulched beds, fence lines, the lawn-to-wildland transition zone if you back up to greenbelt. Treatment frequency: monthly during active season, then quarterly outside it.

Targeted application. Different species harborage in different places. Fleas concentrate in shaded soil and turf where pets and wildlife rest. Ticks quest from grass tips at the wildland edge. Chiggers cluster in localized “hot spots” of tall vegetation. Good treatment is targeted to each, not broadcast.

Source treatment. Fleas reproduce on hosts. If you have a flea problem in your yard, you almost certainly have an animal traffic problem in your yard — pet, feral, or wildlife. Solving the yard treatment without addressing the animal carrier means recurring infestation.

What separates good from bad

Species identification. A good tech identifies which species you have (or which are likely based on the symptoms you describe) and treats accordingly. A bad tech sprays the same product the same way regardless of what the actual pest is.

Pet-safe execution. Modern residual pyrethroids are pet-safe after they dry (typically 1–2 hours). A good company gives you a clear re-entry interval and timing guidance. A bad company doesn’t mention it, leading to homeowner mistrust or — worse — premature re-entry.

Wildlife dimension awareness. If you have ongoing wildlife traffic, the company should tell you it’s a contributing factor and suggest the obvious solutions (fence repair, securing pet food, etc.) even though they don’t do wildlife removal themselves.