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Below are some of the most commonly reported spiders requiring professional pest elimination. This list is not exhaustive and Markley's Pest Elimination Inc. encourages you to save a specimen for our technicians to ensure your structure receives the correct treatment.
Brown Recluse "Fiddleback Spider" -  The Brown Recluse spider is a small, light brown to deep yellow arachnid nick-named for the dark violin-shaped marks on its back. Because other spider species can show fiddleback marks the most certain way to identify a Brown Recluse is to examine the arrangement and number of eyes. Only brown recluses will present both the patterning on the back and three pairs of eyes on the head.
This spider is very shy and will bite only when pressed against the skin. The bite can be very serious however. Toxins produced by the Brown Recluse can cause necrotic tissue damage resulting in massive infection, toxic shock, and in very rare instances, death. The bite itself is often not felt and produces no immediate pain. Over the following several hours, symptoms such as nausea, fever, rashes and vomiting will appear as the site of the bite swells. Children-especially babies--the elderly and those with compromised immune systems are commonly the most severely injured by Brown Recluse bites.
Brown Recluses are usually build their webs in wood piles, sheds, basements, crawlspaces, garages, old beds, and cardboard boxes where they can remain undisturbed for long periods of time.
Black Widow Spider -  Black Widows are spiders native to North America and are widely distributed throughout the continent, reaching from southwestern Texas to northeastern Canada.
The common representation of the Black Widow with a glossy black exterior and the red hourglass marking on the underside of the abdomen are characteristic of the female only. Males are much smaller and light brown with red spots on the leg joints.
The Black Widow bite is one of the most painful and toxic of all spider bites. Their venom is a powerful nuerotoxin that causes muscle cramping near the bite area, spreading outward to the major muscle groups. A tightening of the throat muscles can also occur. Within hours nausea, vomiting and headache are common. As the venom works through the body tremors, weakness, and in severe cases labored breathing and chest pain follow. These symptoms will be amplified in very young children and the elderly.
Furrow Spider -  Furrow Spiders are extremely common in urban and rural environments. The are part of the family of orb weaver spiders and are nocturnal. They may bite when provoked but their venom poses no health risk to humans.
Furrow spiders prey on a variety of insects and their presence indoors is usually an indicator of another pest infestation. They will also move indoors to seek shelter during the c old season. These spiders are typically found in crawlspaces, basements, attics, closets, and other dark areas where they can spin webs and capture meals undisturbed.
Garden Spider -  Garden Spiders are found throughout the United States. They are also known as the Writing Spider, Banana Spider, and Corn Spider. Their black, yellow and white markings are conspicuous. The females are the larger of the sexes, measuring about 3/4 of an inch. The Garden Spider is completely harmless to humans.
Garden Spiders will spin webs in the eaves of buildings, in barns, sheds, and greenhouses, and around large sturdy vegetation. They prefer the outdoors and are not often seen indoors unless there is a steady food source.
Adult Garden Spiders do not live beyond autumn's first frost. Their eggs remain protected within a brown silk ball-shaped sack through the winter. At the onset of spring the new generation emerges. The hatchlings will draw out a strand of silk that is caught by the wind, carrying them away from the old web.
Wolf Spider -  Wolf Spiders are some of the most common spiders in the world with a distribution that nearly covers the globe. They are found in all climates excepting the northern-most reaches of the arctic. They are solitary hunters with excellent eyesight that enables them to stalk and chase their prey. Some Wolf Spiders will dig burrows with trap doors. From behind these doors the spider will pounce on passing insects.
Successful Wolf Spiders can be quite large. Despite their size their bland coloration helps them stay camouflaged on the forest floors and tree barks where they reside. If provoked they can be aggressive and chase would-be attackers. When alarmed they will raise their front legs and brandish their fangs. When in this position it is possible to clearly see their two dominant eyes. Wolf Spider venom is non-toxic to humans and rarely causes anything but slight discomfort and itching.
Like other spider species the Wolf Spider prefers the outdoors and their presence in the home may indicate another infestation.
Blonde / Yellow Sac Spider - It is thought that Blonde Sac Spiders are responsible for more spider bites than any other species. Because their appearance is so similar to the Brown Recluse, these spider bites are often mistaken for Brown Recluse bites.
These small spiders are about 1/4 inch in length and are common in homes when they weather cools during the autumn months. While the Blonde Sac Spider prefers the outdoors, it will take up permanent residence inside if a steady food source is present.
Blonde Sac Spiders do not build webs. They create small silk tubes between leaves, in wall corners, and in structural eaves. During the day they hide in these tubes. At night they forage for small insects. This is usually when humans receive this spider's bite. 
While the venom of the Blonde Sac Spider is the same as the Brown Recluse, Blonde Sac Spiders inject less of it. Usually bites itch and cause some swelling. In rare cases a sore develops.
Deer Ticks -  Deer Ticks are small, parasitic arachnids that live in grasses, shrubs, and trees and wait for warm-blooded animals to brush against them so they can attach the the host for a feeding. Once on the host a Deer Tick will push its cutting mandibles into the skin and pierce the tissue with a barbed feeding tube. This tube firmly anchors the tick in place, making it very difficult to remove. Deer Ticks usually go unnoticed until they have fed at which time they will become quite engorged with the blood of their host.
Deer Ticks are carriers of disease--most notably Lyme Disease--and pose a serious health risk. If a Deer Tick is found on your body do not attempt to remove it by force. Grasp the Tick with blunt tweezers or forceps as closely to the skin as possible and gently pull until the skin starts to lift. Maintaining this pressure long enough will prompt the tick to pull its mouth out of your body. Immediately put the tick in a Ziploc bag and freeze it in case you feel ill later, then wash your hands and the affected area.
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Markley's Pest Elimination, Inc. is a family owned and operated business with over 25 years experience specializing in the removal of insect and small rodent infestations for both commercial and residential clients.