We accept Visa, Masterard, PayPal   Do it yourself products are available         503 289-0576    360 695-2847    

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 Nebraska . Hobo spiders are common and widespread in the Pacific Northwest , but bites are relatively rare; most bites occur when the spider is pressed against the skin and unable to escape. If Hobo spiders are abundant in and around a home, some control measures may be appropriate.

 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.

 Identifying Spiders

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.

1. Eyes in 3 rows, arranged in 4, 2,2 pattern (Wolf spider & Jumping spider, which include the Hobo spider)
2. Eyes in 2 rows of 4 (most spiders)
3. Eyes in 3 pairs (Brown recluse and relatives)

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.

SPIDER BITES

The following information has been modified from: Oregon Health Division Center for Disease Prevention and Epidemiology CD Summary Vol. 44, No. 22, October 31, 1995 . Graphics Source: Washington State University Cooperative Extension Service Bulletin EB1548: Insect Answers: Spiders. Revised 1992.

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.

The occurrence of systemic illness is variable. However, the most common symptom is a severe headache, sometimes occurring within 10 hours (sometimes ~30 minutes) that does not respond to aspirin. The headaches have been compared to migraines and may persist for a week, sometimes accompanied by nausea, weakness, fatigue, temporary loss of memory, and vision impairment. No deaths due to T. agrestis bites have been reported.

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 Oregon State University 's Extension Entomology service at 541/737-3151). Clinicians may wish to consult with the Oregon Poison Center (503/494-8968 in Portland; elsewhere 800/452-7165) for current recommendations (also see Oregon Health Division Center for Disease Prevention and Epidemiology CD Summaries, and "Necrotic Arachnidism - Pacific Northwest, 1988-1996, MNWR v. 45 No. 21, May 31, 1996).

                                                    

TYPICAL WEB OF HOBO SPIDER                           EGG SAC

 

The Bugaboo Spider Trap Is by far the most effective Hobo spider catcher we have ever used. It catches Hobos as well as many other spiders. It has consistently out produced every other trap we have used; 3 to 1. It is totally nonpoisonous and easy to use. (See Instructions)  It is also extremely Competitively priced. Money Back Guarantee!         693.17

You get 5 Bugaboo Spider Traps for just $9.95  $1.99 ea.

You get 10 Bugaboo Spider Traps for $14.95  $1.49 ea.

You get 25 Bugaboo Spider Traps for $24.95  .99 cents ea.

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

You can purchase One box of Hobo Spider trap containing 4 trays @ $12.95  $3.24 ea.

You can purchase 2 boxes (8 total) of Hobo Spider trap containing 4 trays per box @ $19.95 $2.48 ea.

Got Spiders

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ant exterminate, odorous house ant exterminate, Carpet beetles exterminate, caterpillars exterminate, catapillers exterminate, centipedes exterminate, crazy ant exterminate, dursban exterminate, entomology exterminate, flea exterminate, flies exterminate, bebbugs exterminate, bed-bugs exterminate, bed bugs exterminate, hornets exterminate, yellowjackets exterminate, wasps exterminate, cloth moth exterminate, colthes moth extSerminate, clothing moth exterminate, clovermite exterminate, clover-mite exterminate, clover might exterminate, cricket exterminate, food bugs extrminate, food and pantry bugs exterminate, fruitfly exterminate, fruit flies exterminate, fruit-flies exterminate, head-lice exterminate, head lice exterminate, hobo exterminate, lady bug exterminate, lady-bug exterminate, lady-bug exterminate, little tiny ants exterminate, sugar ants exterminate, piss ants exterminate, mole exterminate, mole information exterminate, lice exterminate, lyme disease exterminate, lime disease exterminate, sowbugs exterminate, sow-bugs exterminate, sow bugs exterminate, Anobiid exterminate, Powderpost Beetles exterminate, Coleoptera exterminate, Anobium punctatum exterminate, Xestobium rufovillosum exterminate, parasites exterminate, Brownbanded exterminate, American cockroach exterminate, Oriental cockroach exterminate, German cockroach exterminate, mosquitoes exterminate, Diptera exterminate, Culicidae exterminate, rorway rats exterminate, roof rats exterminate, beetles exterminate, beatles exterminate,

rselfpestcontrol do-it-yourself-pest-control do_it_yourself_pest_control doyourownpestcontrol do-your-own-pest-control do_your_own_pest_control pestcontrolsupplies pest-control-supplies  pest_control_supplies bugoutlet bug-outlet bug_outlet pestproducts pest-products pest_products victorpest victor_pest victor-pest orkin terminex amazonpest
Copyright © 2001 [Alan Luke]. All rights reserved.

Revised: 02/23/10. Home