Fleas Prefer Areas That are Shady, Moist, and Humid There is mixed information in terms of whether fleas live in the grass, but most researchers agree that fleas do prefer outdoor areas that are shady, moist, and humid. When these conditions are right, fleas are thought to be able to thrive in a lawn.
Outdoors, fleas prefer moist, shady, cool places. They especially like shrubs, leaves, and trees, and don't fare well in sunny areas or open grass. By trimming back shrubs, raking out leaves, and, in effect, limiting the amount of areas where fleas thrive, you can help prevent infestations out of doors.
Figure 2. Simplified Life Cycle of the Cat Flea—Optimum temperatures for the flea's life cycle are 75 F (or 75 F to 85 F), and optimum humidity is 78 percent (or 70 percent to 80 percent).
There are four stages in the life cycle of a flea: egg, larva, pupa, and adult. Depending on the environmental temperature and humidity levels, the total life cycle will take anywhere from a couple weeks to many months. Optimal conditions for fleas are between 70-85°F and 70 percent humidity.
Long stretches of hot, dry weather are bad for fleas. They won't survive on your sunbaked patio, but even during a heat wave, odds are they'll survive if they find a shaded or damp place.
Covering skin with long-sleeve clothing and pants will minimize exposure to bites. Flea bites often occur on the lower legs and feet, protect these areas with long socks and pants. Treat clothing and gear with products containing 0.5% permethrin.
At What Temperature and How Quickly Do Fleas Die? Adult fleas die at temperatures colder than 46.4°F (8°C) and hotter than 95°F (35°C). Immature fleas, which refers to both flea eggs and larvae, are slightly more susceptible to the cold, dying at temperatures below 55.4°F (13°C).
Adult fleas have impressive survival abilities, lasting up to 100 days without a host. However, their lifespan is ultimately dependent on getting a blood meal. While pre-emerged adults can survive without feeding for up to 155 days, younger fleas can endure extended periods without a host, sometimes up to a year.
The cooler, drier winter weather will offer your pets some relief, but it is crucial to treat against fleas throughout all seasons. Summer is one of the most active times for fleas and ticks, with some of the worst season being fall, in September, October, and November.
Seemingly a national problem, this month Rentokil reported seeing a rise in flea infestations by nearly half (47%) in just one year. Rentokil believe the unusual weather is the cause of this sharp increase with June 2023 being the warmest since 1884 followed by a wet July which saw above average rainfall of 170%.
Enquiries relating to suspected flea infestations have increased by 47% in a year, according to recent data from Rentokil Pest control, and the experts believe the unusual weather in 2023 could be the reason.
During the day, fleas avoid the sun so they are most active at sunset and least active at sunrise. At dusk, the pests would lay more eggs, respire more, and move around in the yard more. Although the fleas are not completely inactive at any time of the day, they have increased activity at dusk and night.
Fleas in the house are typically found in sleeping areas such as bedding, carpet, and mattresses. Fleas on humans are often found in areas that are closer to the ground, as fleas tend to grab onto clothing while a person is outside.
Fleas hide indoors on textured surfaces like carpet, bedding, clothing, and upholstery. These surfaces are especially good hiding spots for flea larvae, which burrow into dark areas. Eggs may be present in any of these areas, too.
Will a flea die without a host? Fleas are parasites; they need a regular supply of blood to survive. Adult fleas develop a dependency on the blood of their host, so yes, they will quickly perish should they be separated from them for a certain amount of time – this could be as short as a couple of days.
You can get fleas in your hair, but they won't stay and live there. Human hair isn't thick enough to provide shelter for fleas, and most species of flea don't even feed on humans, anyway. If a flea jumps onto you from one of your pets, it will probably leave in search of better shelter.
They also inhabit upholstery, furniture, and other common household furnishings, especially where they can stay warm. Simply put, you can find fleas almost anywhere.
Hot, soapy water in a washing machine: As previously explained, washing flea-infested items in a clothes washing machine is an effective way to kill fleas, thanks to the laundry detergent, the heat of the water, and the turbulence of the wash cycle.
The closest pet owners can get to immediate flea relief is by treating their pets with Nitenpyram. Common brands of Nitenpyram include Capstar® and Bestguard® which can be purchased through a veterinarian, online, and over the counter.
Flea bombs are not an effective method of flea control. The pesticides released do not penetrate the carpets or other fibers where the flea eggs and larvae are likely to be hiding. The University of Nebraska-Lincoln recommends an Integrated Pest Management approach, instead of the use of insect bombs.
If you find fleas on your pet, don't panic, it's rarely a reason to seek emergency veterinary care. Yes, fleas are unpleasant for pets and humans. Not only can they cause your pet discomfort and irritation, they can also carry some nasty illnesses as well as infest your carpets, beds and other areas of your home.
Pyrethrin, a toxin derived from the chrysanthemum flower, and its synthetic kin permethrins, are both commonly found in flea control products. These toxins work by attacking the nervous system of insects.
One is that some flea treatments make fleas more active before they die. For example, the ingredient in FRONTLINE® products kills fleas by making them hyper excited. This makes them move around up to the top of the pet's hair where they're easier to spot.
