West Nile Virus Activity 2026
As of October 21, 2026, one positive dead bird from Valencia (September 23) and one positive mosquito sample from Castaic, outside the city (September 18).
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Santa Clarita has three distinct cockroach problems. Turkestan and oriental roaches live outdoors in valve boxes, block walls and planters. American roaches come up from sewers in the heat, and German roaches breed inside condo and apartment kitchens. We identify the species first, because each one needs a different plan.
The National Weather Service measured 111°F in the Santa Clarita Valley on July 7, 2018. UC IPM says the invasive Turkestan cockroach is spreading through warm, dry parts of southern California.
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On July 7, 2018, the National Weather Service measured 111°F in the Santa Clarita Valley, according to SCVNews.com, against a typical high of 93°F for the date. UC IPM says the invasive Turkestan cockroach has been pushing out the oriental cockroach across southern California and other warm, dry regions.
This species lives outdoors in water meter boxes, cracks between concrete blocks, compost, leaf litter and potted plants. Females are dark with short, rounded wings and cream edges behind the head. Males are smaller than American roaches, with yellowish wings edged in cream, and the nymphs have reddish heads and legs.
So the cockroach you see in the entry or garage may have started outside. We treat the outdoor harborage first, including valve and meter boxes, the base of block walls and planters, and then close gaps under doors and around pipes. [8] [20]
About 15,500 Santa Clarita homes are in buildings of five or more units, and in ZIP 91321, which covers most of Newhall, 39% of households rent. UC IPM calls the German cockroach the most persistent species in California. It breeds indoors near food and water, especially in multi-unit housing, and adults hide in cracks 1/16 inch wide.
Spraying one unit tends to push German roaches next door. In condo and apartment buildings we place gel bait in hinges, pipe gaps and appliance voids, add an insect growth regulator, and ask managers to approve the connected units.
Restaurants and food businesses get visits before opening or after closing, with products labeled for food areas only. Every visit is logged, so you have a record when the county health inspector arrives for the letter-grade inspection. [1] [2] [20]
Most homes here are young, but not all. Fewer than 3,400 of the city's 78,100 homes predate 1960, and in Newhall's 91321 the median dates to 1978. UC IPM says the American cockroach favors temperatures above about 82°F and moves from sewers into buildings through damaged pipes or faulty drain traps.
Large reddish roaches in a tub, laundry sink or garage floor drain during a hot spell point to the plumbing. We check cleanouts, dry traps in seldom-used drains and gaps where pipes enter the slab. Running water into unused drains keeps their traps sealed. [1] [2] [20]
We check the yard, the drains and the kitchen, because Santa Clarita cockroaches can come from any of the three.
Outdoor harborage treatment for Turkestan and oriental roaches, drain work for American roaches, and gel bait plus a growth regulator for German roaches.
A return visit reviews the monitors, adds bait where roaches are still feeding and lists the gaps worth sealing.
Public-health notices, vector-control alerts and local news we track for this area. Summaries are ours; follow each link for the original report.
As of October 21, 2026, one positive dead bird from Valencia (September 23) and one positive mosquito sample from Castaic, outside the city (September 18).
Read the originalThe Greater Los Angeles County Vector Control District reported two West Nile–positive mosquito samples in Newhall and one in Canyon Country, the first that year in either area.
Read the originalThe Tick Fire burned 4,615 acres around Canyon Country, destroyed 29 structures, damaged 44 and threatened about 10,000 residences before evacuation orders were lifted.
Read the originalState table listing Aedes aegypti as present in Santa Clarita (and in neighboring Castaic) and Aedes albopictus as not found.
Read the originalA record 220 county-wide cases in 2025, up from 187 in 2024, with nearly nine in ten patients hospitalized; fleas on rats, stray cats and opossums spread the disease.
Read the originalIt is an invasive species that UC IPM says is replacing the oriental cockroach in warm, dry parts of southern California. It breeds outdoors in meter and valve boxes, cracks in block walls, compost and leaf litter, so large numbers outside usually mean a breeding spot close to the house.
Those are usually American cockroaches, which favor warm conditions and live in sewer lines. They come up through drains with dry or faulty traps and through damaged pipes. Running water in unused drains and checking cleanout caps helps, and we treat the plumbing route itself.
For German cockroaches, the connected units usually need attention at the same time, because the roaches travel through shared plumbing walls. Ask the association to approve inspections of the units around yours. We can work unit by unit or set up a building-wide plan.
They can, especially in summer, because new roaches move in from neighboring yards and utility boxes. Keep leaf litter and mulch away from the walls, seal door gaps and fix irrigation leaks. A recurring program keeps the outdoor harborage in check.
Yes. We schedule visits before opening or after closing, cover the kitchen, dry storage and floor drains, and use only products labeled for food areas. Each visit is documented so you can show the service history at the county health inspection.
Prep is required. Clear counters and the cabinets under the sink, and store food in sealed containers. Skip store-bought sprays, which UC IPM says can repel and scatter roaches. Your technician gives you the full list in English or Spanish before the visit.
The small light-brown roach with two dark stripes behind its head is a German cockroach, and it lives indoors only: cabinet hinges, backsplash gaps and appliance motors. Females carry egg cases of about 30 young almost until they hatch, so killing visible roaches leaves the next generation untouched. In Santa Clarita apartments they travel between units through pipe chases and shared wall voids.
The big reddish roach near a drain is an American cockroach up from the sewer in hot weather, often through a dry floor drain. The shiny black one stuck in the bathtub is an Oriental or Turkestan cockroach from a damp garage, meter box or ivy bed. Each needs a different plan.
The technician inspects the kitchen, bathrooms, laundry and water heater closet, checking hinges, pipe gaps and appliance motors for droppings and egg cases, and confirms the species. Small dabs of gel bait then go inside the cracks where roaches hide and forage, not on open counters. Dust reaches wall voids and cabinet kick spaces.
An insect growth regulator is added so nymphs hatching after the visit never become breeding adults, breaking the cycle that lets German cockroaches rebound after a spray. The follow-up visit reads the sticky monitors, rebaits where feeding continues and switches products if feeding has stopped. Multi-unit buildings and restaurants in Santa Clarita receive a service log each visit.
Empty kitchen cabinets, drawers and under-sink cabinets so hinges, corners and pipe gaps are reachable. Put all food, pet food included, in sealed containers or the refrigerator. Clear the floor in front of the stove and refrigerator, remove cardboard boxes and paper bags, and fix or report dripping taps.
Stop using store sprays and foggers; they repel roaches into the walls and away from the bait. Bait is slow by design: roaches carry it back to the harborage and share it, so a week or longer passes before numbers drop. Expect several weeks and at least one follow-up for a German colony.
Every PesPro service carries a 30-day guarantee, and cockroaches are in the top tier with bed bugs and rodents: if roaches reappear within 30 days of your treatment, PesPro returns for a third visit at no extra cost. Other pests pay 30% of the original price for a return visit in that window.
Quotes are free and written after the inspection, because the species, the spread and whether neighboring units or a commercial kitchen are involved set the scope. Multi-unit buildings in Santa Clarita are quoted per door, with rates that fall as the building grows; restaurants by square footage and risk.
Same-day service is available for an extra fee. It pays off when a restaurant has failed an inspection or has one coming, when roaches are out on counters in daylight, which signals a crowded colony, or when someone in the home has asthma. The 24/7 line is (323) 472-5329.
Vermin infestation is the most frequent reason in recent LA County weekly food-facility closure reports, which is why PesPro's restaurant logs are organized around what inspectors check: droppings, live activity and harborage. Service runs before opening or after close, with no broadcast spraying near food surfaces.
Multi-unit programs treat unit by unit plus trash rooms and utility closets, supply tenant-notification templates, and keep digital service logs that HOA boards can review. PesPro is QualityPro certified, a credential held by fewer than 3% of US pest control companies, and holds a 4.9-star Google rating across 132 reviews.
Because gel bait works slowly: roaches eat it, return to the harborage and share it, and females carrying egg cases feed very little, so their young hatch into the growth regulator afterward. Numbers usually fall in the second and third weeks.
Leave them. Wiping removes the only thing the colony is eating, and sprays repel roaches into the walls or the next unit. Clean counters and floors normally, but keep cleaners off the dots until the program is finished.
Treating one unit while connected units stay infested shuffles roaches around, so PesPro inspects and treats adjoining units and common areas when the manager authorizes it. Civil Code 1941.1 lists vermin-free premises among a landlord's habitability duties; general information, not legal advice.
If roaches reappear within 30 days of your treatment, PesPro returns for a third visit at no extra cost. Keeping the bait dots intact and following the sanitation list keeps the guarantee simple to use.
Gel bait sits in tiny amounts inside cracks where hands and paws do not reach. Growth regulators act on insect hormones that people and pets lack and are low in toxicity. PesPro uses pet-safe and child-safe formulations under California DPR guidelines.
Foggers settle on open surfaces and never reach the cracks where cockroaches breed; survivors scatter deeper into walls and neighboring units, which makes the bait treatment slower. Save the money; the quote is free.



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