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A California farmhouse surrounded by Salinas Valley farmland — Hollister, California service area

Flea & Tick Control in Hollister, CA

101 Exterminators handles flea and tick control in Hollister, where the pressure comes off the open ground rather than off your pets. Ground squirrels, opossums, and raccoons carry cat fleas (Ctenocephalides felis) across yards on the edge of town, and the oak woodland and dry grass along the Gabilan and Diablo foothills hold ticks. We treat the yard and the harborage, not just the animal. SPCB Lic. #9119.

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Fleas and Ticks Come Off Hollister's Open Ground, Not Off the Neighbor's Cat

Cat fleas (Ctenocephalides felis) are the dominant flea in this part of California and they do not require you to own a pet. They ride in on the wildlife that crosses Hollister properties every night — ground squirrels, opossums, raccoons, and free-roaming cats — and drop eggs wherever those animals rest. On lots backing open ground out Tres Pinos Road, along Airline Highway, or up against the foothills, that means under the deck, in the crawl space, along the fence line, and in the shaded dirt beside an outbuilding.

Hollister's dry heat concentrates the problem rather than solving it. Flea larvae need shade and humidity, so through July and August they collect in exactly the places the animals already favor — cool dirt under a porch, the crawl space, the shaded side of a woodpile, an irrigated planting bed. The hosts stay active the whole time because there is water in every irrigated yard in town. Winter frost does not clear it either, since the protected pockets under structures hold well above the outside low.

Ticks are a different piece of ground entirely. Western black-legged ticks (Ixodes pacificus) and Pacific Coast ticks (Dermacentor occidentalis) wait on grass and brush at the wildland edge — the oak woodland and dry grassland of the Gabilan Range on the west side and the Diablo foothills to the east, including the country out around Hollister Hills. They quest at the tips of vegetation along trails and fence lines, so on ranch and horse parcels the exposure is right where mown ground meets tall grass.

How We Work in Hollister

We treat the ground where larvae actually develop, which on Hollister properties is the shade rather than the open lawn — under decks and porches, at the crawl-space entry, along the fence line, at the woodpile, and in the beds on the north side of the house. We look for the wildlife route first, since a flea problem that returns usually means an opossum or a squirrel still resting under the same deck. On horse and livestock property we walk placement and re-entry with you before anything goes down.

Hollister Climate

Hollister has a classic inland Mediterranean climate — significantly hotter than the coastal counties, with summer afternoons regularly reaching 95–105°F in July and August, and winter nights that drop below 32°F with frost several times per year. Annual rainfall averages 13–17 inches, concentrated in November–March. The hot, dry summers create intense pressure from all pest species seeking moisture and cool interiors, while wet winters followed by rapid spring warming produce the most active subterranean termite swarm conditions in our service area.

Housing Stock

Hollister's older downtown core has Victorian-era and craftsman housing from the late 19th and early 20th centuries. The Calaveras Fault runs directly beneath the city, meaning that virtually all older structures have experienced decades of seismic settling — creating gaps in foundation sills, shifted door and window frames, and crawl space irregularities that function as pest entry points regardless of their original construction quality. Newer west-side development from the 1990s–2000s is more structurally stable but still faces agricultural pest pressure from surrounding field crops.

Why Local Expertise Matters

Hollister's combination of fault-settling, inland agricultural adjacency, and dramatic termite swarm seasons requires experience specific to San Benito County conditions. We know that the crawl space settling patterns in older downtown Hollister homes differ from anything we see in coastal counties, and that the spring swarm events here are more concentrated and visible than in Monterey County because of the inland climate amplification.

Signs You Need Fleas & Ticks Service in Hollister

Inside the home we pair an adulticide with an insect growth regulator, which keeps eggs and larvae from ever reaching the breeding stage. Outside we treat the shaded ground where larvae survive, plus the fence lines, wood piles, and crawl space openings that wildlife uses as a highway. Tick work concentrates on the boundary between mowed yard and unmanaged brush, since that strip is where questing ticks meet people and dogs. We also walk the property for the entry points that keep bringing fleas back, and we explain what your veterinarian needs to handle on the animal, because the environment and the pet only work when they are handled together.

Pets scratching or chewing at the base of the tail, the belly, and behind the ears

Flea dirt in pet bedding: dark pepper-like specks that turn rust red on a damp paper towel

Bites in tight clusters on ankles and lower legs, usually a few in a row

Small dark insects that disappear into carpet pile the moment you part the fur

A burst of biting a day or two after a vacation, or on the first day in a vacant rental

Fleas in a home with no pets, which usually points to wildlife living under the structure

Ticks found on a dog after time in the yard rather than after a hike

An attached tick on a family member, or a rash, fever, or joint ache in the weeks after a bite

Our Fleas & Ticks Process in Hollister

Every job follows the same methodical approach — no shortcuts, no guesswork. Here is what to expect when you work with us in Hollister.

01

Inspection & Source Identification

We look for flea dirt where it collects, check crawl spaces and the shaded ground under decks and hedges, and note where opossums, raccoons, and ground squirrels are moving through the property. For ticks we walk the line where kept lawn meets brush, since that strip carries most of the exposure. What the inspection turns up sets the treatment, rather than a standard package set in advance.

02

Interior Treatment

Interior work pairs an adulticide for the fleas you can see with an insect growth regulator for the ones you cannot. The growth regulator keeps eggs and larvae from developing into breeding adults, and it goes where eggs settle: carpet, the base of upholstered furniture, pet resting spots, and along baseboards. On hard floors we work the edges and cracks, where debris feeds developing larvae.

03

Yard & Property Edge

Flea larvae do not survive in open sun, so yard treatment targets shade: under decks and stairs, beneath dense shrubs, along the north side of the house, and wherever the dog lies down. Tick treatment follows a different line, the border where mowed yard gives way to tall grass, leaf litter, and brush. Treating the whole lawn misses both.

04

Pet Coordination & Follow-Through

Treating the house without the animal, or the animal without the house, puts you back where you started. We coordinate timing so your veterinarian's product goes on the pet the same day we treat, and we walk you through the vacuuming schedule that pulls pupae out of the carpet. Vacuuming does more than clean here, since the warmth and pressure signal cocooned adults to emerge onto treated surfaces.

Fleas & Ticks You Can Count On in Hollister

Growth Regulator in the Plan

An adulticide handles the fleas jumping today. The insect growth regulator works on the eggs and larvae buried in carpet and yard shade, which is where the great majority of the population is sitting at any moment.

Yard and Property Edge Treated

Indoor-only treatment leaves the outdoor source running. We treat the shaded ground where flea larvae survive and the brush line where ticks wait for a host to walk by.

Wildlife Source Assessment

Homes along open space, creek corridors, and farm edges get fleas delivered by opossums, raccoons, and ground squirrels. We find the openings those animals are using and tell you what needs closing.

Coordinated With Your Veterinarian

We time the visit around the product your vet has prescribed, and you get written prep and re-entry steps so the two halves of the job line up instead of canceling each other out.

Flea & Tick Control FAQs for Hollister

We do not have pets. Why are there fleas in our yard in Hollister?

Because cat fleas arrive on wildlife, and in Hollister that means ground squirrels, opossums, raccoons, and free-roaming cats crossing between the open ground and the neighborhood. They rest in the shaded, protected spots on your property — under a deck, in the crawl space, beside an outbuilding — and eggs and larvae build up there. Closing off the space under decks and sheds usually does more than a yard treatment on its own.

Where are we most likely to pick up ticks around Hollister?

At the vegetation edge — the tall grass and brush along trails, fence lines, and the oak woodland of the Gabilan and Diablo foothills, including the ground out around Hollister Hills. Western black-legged ticks (Ixodes pacificus) climb to the tips of grass and wait for something to brush past, so the risk sits in the unmown margin rather than in the middle of a cut lawn. Keeping a mown buffer between the yard and the tall grass is the most useful change on a Hollister property.

We keep horses and dogs on a property outside Hollister. How does that change a flea treatment?

It changes placement and timing, and we go over both with you before anything is applied. On a Hollister horse property we work around paddocks, feed, and water, and we concentrate on shaded harborage — under structures, the tack room, the shaded dirt along fence lines — because that is where flea larvae actually develop. Your veterinarian handles what goes on the animals, and the yard work is timed to support that rather than replace it.

Free Pest Evaluation in Hollister

CA licensed and insured. Written estimate before any work begins. Urgent situations in Hollister are prioritized.

Trusted by Hollister families since 2005