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Pest Control in Parker, Colorado, and Surrounding Areas
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Spider Control

Parker Pest Control Services

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Generally speaking, spiders are beneficial to have around. However, some people are afraid of them and may prefer to not have large populations in and around their home. Additionally, there are some species that are harmful and if you are encountering a number of these more harmful ones, you may want the help of Parker Pest Control Services with your spider control needs.

Or visit pages on these pests: 

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Spider Control:

Spiderless spider web
Spiders are of the family arachnid and are different from insects. They actually feed on insects and other arthropods. Generally speaking, they are beneficial in helping manage pests and may be the most important biological control of insect pests in gardens, fields, forests, and homes. Despite this, some people fear spiders because of stories and myths. Others don’t like them in and around the home due to their webs.

​Spiders are attracted to attics and crawl spaces, either because they are dry and warm, or because they are cool and moist. In every case, spiders prefer darkness. These arachnids will often enter homes through poorly sealed windows or through cracks around door frames. Once they’re inside, they start to cultivate and lay egg sacs. A single sac can contain hundreds of eggs. 

Common Colorado spiders include:
  • The funnel web spider is the most common kind found in homes in Colorado. They produce dense mats of silk in areas such as shrubs, thick grass, or corners of buildings. They are sometimes mistaken for the brown recluse (covered in more detail further down on this page).
  • Jumping spiders are also common and are active hunters who stalk and pounce on their prey.
  • Ground spiders are harmless to humans and are most often found under rocks or logs where they build silken retreats and emerge only to hunt.
  • Cobweb spiders/house spiders generally have a bulbous body and spin a lacy messy web. They prefer dry habitats in secluded locations, such as window framing, under eaves, gutters, in brickwork, sheds, toilets, in dark corners, and among rocks and bark. Black house spiders can look like black widows but lack the red hourglass on the abdomen. Their bite is poisonous but not lethal. Certain people bitten experience sever pain around the bite site, heavy sweating, muscular pains, vomiting, headache, and giddiness. Medical attention should be sought if this is the case.
  • Cellar spiders are usually found in dark corners of cellars, crawl spaces, and garages. They are very long-legged and often confused with daddy-long-legs.
Yellow Sac SpiderYellow Sac Spider
  • Sac spiders, which are mostly pale colored, are usually the most common ones wandering in homes during fall at night. These spiders are active hunters, and the Cheiracanthium species are suspected as being the most common source of spider bites in homes. Aside from pain, which subsides after a few minutes, the bite usually causes no other symptoms. Sac spiders spend daylight hours in a flattened silken sac, typically located in upper corners of rooms or in wall cracks. Yellow sac spiders can be attracted to the chemicals in gasoline and might create nests in fuel lines. They also love to hide in piles of clothes. Some claim yellow sac spiders to be dangerous, and victims of yellow sac spider bites are advised to get medical attention immediately as the effects of these encounters are still relatively unknown. Their venom can cause small lesions on humans, though whether or not it is necrotic is up for debate. 

Grey wolf spiderGrey Wolf Spider
  • Wolf spiders are very large, very fast and can be brown or grey. They are active hunters that do not produce a web to capture prey. An unusual characteristic of female wolf spiders is that she’ll carry the egg sac attached to her spinnerets; the newly hatched young can then crawl on the female’s back for the first few weeks of life.  Also interesting to know, a wolf spider’s eyes reflect light so if light is shined on them in the dark, their eyes will supposedly glow in the dark. Wolf spiders occasionally enter homes, but they are normally shy and not dangerous to humans though large species can bite if provoked.
  • Several orb weaving spiders are commonly found outdoors late in the season. Some species, known as “barn” or “garden” spiders, make geometric webs among vegetation, buildings, windows, or outdoor lighting. They are usually brownish in color with a large and prominent abdomen that is dimpled and marked. The largest and most striking of the orb weaving spiders found in Colorado is the harmless banded garden spider. 
  • Tarantula spiders are found in Colorado but primarily in the southeast plains region and not near Denver. They migrate in waves in the fall looking for mates.

Though all spiders can bite and many bites are painful, most spiders are low risk ones and not aggressive. There are a few spiders, however, whose bite requires medical attention and need to be avoided whenever possible. Here are some to watch out for; call Parker Pest Control Services to help with spider extermination if you are not sure you can get rid of the spider without getting bit yourself or if you want to prevent spider populations from being in your home in general. 
Female black widow spider with red hour glass abdomenBlack Widow Spider
Black Widow Spider Control:
The western black widow spider is the species found in Colorado. Black widows have bodies about ½ inch long. The female is normally shiny black with a red hourglass marking on the underside of the abdomen. The marking may range in color from yellowish orange to red and its shape may range from hourglass to a dot. The male black widow is light brown with lighter stripes on the underside and is smaller in size than the female.
 
Outdoors, black widows prefer to live in woodpiles, rubble piles, under stones, and in hollow stumps. Indoors, they can be found in sheds, garages, and in undisturbed, cluttered areas in basements and crawl spaces. The web of black widows is not symmetrical but is messy with silk strings going every which way.

​Black widow spiders are highly venomous and can be deadly, especially for the elderly and children. Only a small amount of venom can cause serious illness as the poison attacks the nervous system. Effects of a black widow bite may be headache, nausea, vomiting, chest and/or abdominal pain, pyrexia, hypertension, sweating, excess salivation, muscle cramps, dizziness, watery eyes, difficulty breathing, trembling, and limb paralysis. The male black widow rarely bites, so it is the female black widow who is of particular danger. Immediate first aid and medical attention should be sought if you suspect you have been bitten. Pets can also be bitten by black widows and would need medical attention.

Brown recluse spiderBrown Recluse Spider
Brown Recluse Control:
The brown recluse spider can be deadly and aggressive if it feels threatened or is suddenly encountered. Examples of times people may be bitten are if the spider is hiding in a shoe when the person puts it on or the person grabs a piece of wood in a wood pile where one is hidden. Their venom can cause significant cutaneous injury with tissue loss and necrosis. When it first occurs, however, the bite of a brown recluse is generally not painful, so sometimes one might not know he or she has been bitten for several days. Symptoms of the bite of a brown recluse may initially be similar to those of the flu. Then, after one to five days, the bite area will become red, tender to touch, and may start festering.
 
Brown recluse spiders are about ¼ to ¾ inches in body (or about the size of a quarter or less) with a dark violin shape located on the top leg attachment region with the neck of the violin pointing backward toward the abdomen. They have eight eyes with six of those arranged in pairs, one pair in front, and a pair on either side.
 
These spiders don’t move very fast and generally prefer to hide out in dark, remote places such as a woodpile, a barn, the back corner of a closet or even inside a shoe or a box. They are more predominant in the south of the U.S. but do exist from coast to coast. Although single specimens are sometimes brought into the state, natural populations are not found in Colorado.

Hobo spiderHobo Spider
​Hobo Spider Control:
 The hobo spider is one that more people need to be aware of as they are perhaps the real cause of mistaken brown recluse bites and are more common in Colorado than the recluse. Their bite patterns and symptoms are similar to that of the brown recluse; the bite can cause necrosis but not as severely. Their bites are not known to be fatal to humans, but within half an hour, the affected site will become numb, swollen, red, and callous. Over the next couple of days, blisters will appear, break, and begin to weep potentially followed by a necrotic lesion (dying skin). Other common symptoms can include headache, nausea, weakness, fatigue, temporary memory loss, and vision impairment. In any case, first aid and medical attention should be sought if bitten.
 
The hobo spider is generally referred to as an aggressive house spider and is found in Colorado. They are a little smaller than 2 inches long, generally brownish in color, and have a zigzag design on the back of their abdomen. Their legs are hairier than those of a brown recluse. If they manage to stay hidden from view, their funnel-like nests are a telltale sign of their presence. They rarely climb up vertical surfaces so are uncommon above basements and ground levels.

To help keep spider populations down around your home:
  • Do not keep the following adjacent to your home: rocks, wood piles, compost piles, old wood boards, and other similar sheltering sites.
  • Be sure to caulk cracks and crevices around the foundation to help eliminate spiders from migrating into your home. Also be sure screens and doors are sealed tight.
  • In crawl spaces and basements, try to keep them free of debris and limit the boxes stored, which provide spiders with dark secluded living spaces.
  • Regularly vacuum or brush away spider webs.
  • Minimize the number of insects that are prey for spiders.
  • Occasional spiders can be removed by hand (wear gloves or trap the spider in a container) or use a vacuum.
  • Sticky traps can capture spiders when placed along baseboard or other migration areas (spiders are most often found in kitchens, bathrooms, or basements where they are seeking a source of moisture).
The spider removal process is a delicate and tedious one, often requiring the assistance of an experienced insect pest management company. If the above tips do not meet your spider control satisfaction, don't hesitate to call Parker Pest Control Services for help. We are here for you.

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Parker Pest Control Services
Email: parkerpestcontrolservices@gmail.com
Phone: 720-597-8857
Url: http://www.pestcontrolparker.com/
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9615 E. County Line Rd., STE B-516
Centennial, CO 80112
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  • Home
  • Pests
    • Insect Control >
      • Ant Control
      • Bed Bug Control
      • Cockroach Control
      • Stinging Insect Control
      • Tick and Flea Control
      • Other Insect Control
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    • Spider Control
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  • Services
    • Residential
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