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The Aggressive House Spider /
Hobo Spiders are predators which feed on insects and most of the time are quite beneficial to our environment. Except for webbing and egg sacs, spiders will not damage a house or its contents. Three species of European House Spiders occur in the Pacific Northwest, where they are among the most common spiders in and around houses. The three of genus Tegenarra are the (1) T. domestica (2) T. agrestis (hobo spider) and (3) T. Gigantea. These three are known as the funnel-web weaving spiders. Until recently, these spiders were considered wholly
beneficial. There is now good reason to believe that one of them, the Hobo
spider, is responsible for a number of human spider bite cases involving
annoying skin lesions and, occasionally, serious illness. Most of these bites
were previously blamed on the "Brown Recluse" which, however, is not
known to occur anywhere west of Indoors, spiders can be found under and behind furniture, furnaces, and appliances; in storage areas, basements, attics, and unused cabinets; in cracks around windows, moldings, and ducts; and anywhere else that is not dusted regularly. Typically, the largest Hobo spider populations are in sub-area crawl spaces under homes and decks. Outdoors, the spiders webs and eggs will be under logs and boards, in piles of junk, bricks, blocks, lumber, or firewood, among disused yard furniture or tarps, in trash bins, outdoor stairwells, window frames and wells, porch super structures and ventilation structures. Control: Treatments in and around homes, apartments or commercial buildings are targeted towards doors, windows, vents, outside stairwells, window wells, along foundation, under lip of siding and inside spot areas where deemed necessary. Spider control is a process to reduce interior sightings.100% control usually is difficult to achieve because spiders can walk over the top of a surface that has been treated with insecticide and not accumulate sufficient amounts to affect them. Thermo fogging crawl spaces is beneficial. Exterior ground maintenance with reduction of heavy dense vegetation will help reduce exterior spider populations thus reducing the pressure of interior infestations. A new sticky board with a pheromone attractant has been used very successfully to monitor and capture hobo spiders.
1. Eyes in 3 rows, arranged in 4, 2,2 pattern (Wolf
spider & Jumping spider, which include the Hobo spider) Using the eye arrangement is much more accurate when trying to identify Brown Recluse spiders and spiders which have been squashed. Also funnel-webs (which include Hobo spiders) are large spiders ( ½ inch to 1 ¾ body length ) with glossy dark brown to black carapace. The abdomen is usually dark plum to black and not patterned. Males often have a ventral spur or swelling midway along the second leg which is pointed in Atrax and blunt or absent in Hadronyche. Spinnerets usually obvious, finger-like and at the end of the abdomen. The eyes of funnel-webs are closely grouped. The following information has been modified
from: The effects of hobo spider bites are similar to
those of the brown recluse spider. The actual bite is not always painful, but a
small, hard area typically appears within 30 minutes, surrounded by an expanding
red welt that may reach 5-15 cm in diameter. Blisters form within 15-35 hours,
which eventually crust over the cratered wound. A scab can develop over necrotic
tissue that eventually sloughs off. In some cases, tissue loss is so severe that
surgical removal of damaged tissue and repair are needed. The fully developed
lesion may reach 3 cm or more in diameter. Lesions may take several months to
heal, and frequently leave a permanent scar. Treatment
(see more at Spider First Aid) Optimal treatment for suspected spider bites is not well defined;
identification of the offending creature is often a guess. Patients are
encouraged to seek medical attention and, if possible, submit spiders for
identification (contact
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The
Bugaboo Spider Trap
Is by far the most
effective Hobo spider catcher we have ever
used. It catches Hobos as
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You get 5 Bugaboo Spider Traps for just $9.95 $1.99 ea. |
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You get 10 Bugaboo Spider Traps for $14.95 $1.49 ea. |
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You get 25 Bugaboo Spider Traps for $24.95 .99 cents ea. |
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The Hobo Spider trap This amazing device is designed to catch the infamous HOBO spider. as well as other spiders. It contains a special attractant to lure spiders into the sticky inescapable den from which they cannot escape. It contains no poisons and is safe around pets and children. 693.95-4t |
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You can purchase One box of Hobo Spider trap containing 4 trays @ $12.95 $3.24 ea. |
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You can purchase 2 boxes (8 total) of Hobo Spider trap containing 4 trays per box @ $19.95 $2.48 ea. |
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The
most reliable way to distinguish major spider groups is by arrangement of the
eyes on the "head" region of the spider. On the large spiders,
this eye arrangement is readily visible. A hand lens or magnifier may make the
job easier in some cases.
well as many