Spiders are truly an interesting insect

Spiders they do not destroy structures like termites or carpenter ants and they do not carry disease or allergens like cockroaches or rats.  Spiders are a nuisance and cause more fear and psychological damage than any other pest we deal with. They are Hollywood bound movies have been displayed based on fear of spiders take Arachnophobia for example.

Spiders can be separated into broad categories such as burrowers, web-spinners, active hunters and ambushers and in their search for food they can end up in homes and other unwanted places.

There are over 40,000 of species of spiders in the world. All spiders are venomous only a handful of them have toxic venom.  So which spiders should we be concerned with?

There are two main spiders that have toxic venom:

The WidoID-Black-Widoww Spider: Is a web spinner spider they are found worldwide, known for their ability to cause pain and suffering in humans. Commonly identified by their shiny black body with the red hourglass on the abdomen but not all widow spiders are black.  The widely spread brown widow has a pattern of brown and tan strips with an orangish hourglass.  They are found in natural environments dark damp habitat.  They can be found indoors and are commonly found in sheds garages and storage areas.

ReclID-AZ-Brown-Spideruse Spider: Is a active hunter there are about 100 species known in the world and in the United State there are 11 native species and two non natives.  In the United Stated the Brown Recluse was not considered dangerous until 1957, after that point they have been known for their ability to cause skin lesions.  Missouri, Oklahoma and Kansas are highly populated with recluses. A family in Lenexa, Kansas collected 2,055 brown recluses in their home in six months.  There are five native species that are found in the southwest, and they are commonly found in homes surrounded by native desert vegetation.  In nature they are found under rocks, particularly in dry areas, rodent burrows and fallen and decaying cactus.  In the synanthropic environment they are found in cardboard boxes, under structures that provide crevices such as tarps, garbage cans  and stacked wood.  Of medical concern they seek refuge inside shoes, under clothes left on floor, in gardening or gloves left in the garage.

A couple other spiders with questionable medical importance are the Yellow Sac Spider and Hobo Spiders.   

So now that you know what spiders pose a threat what actions can you take against them? There are many things that a homeowner can do on a non chemical measure to help reduce spider activity.

Sanitation: Removal of spider webs, egg sacs and potential harborages.  Tape all storage boxes and keep them off the floor.  Reduce clutter and in garages and sheds.

Exclusion: Weather stripping on windows and doors and rubber stripping under doors as well as calking around cracks can help reduces activity.

Exterior Lighting: Exterior lighting can attract all types of insects and become a feeding pool for spiders.  Make sure you have sodium vapor lights installed.

Ventilation:  Proper ventilation in crawl spaces in attics reduces excess moisture, which will reduce insects and limit the food source for spiders.

Hopefully this helps and if would like an estimate on spider control for your home please call us at 520-886-3029. Where Spiders Fear the Blue!

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