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First I would like to talk a little about the famous spiders:
Spiders usually remain hidden and do not seek out and bite humans. Most spiders cannot penetrate the skin of a human with their fangs. Almost all spiders possess venom, but only a few are considered dangerous to humans. They are predators, feeding primarily on insects and other arthropods. When feeding, spiders inject a digestive fluid into their prey, and then suck up the digested food.
There are about 1000 species of spiders in the United States. They live everywhere, even inside homes and buildings. Some species are able to bite humans and inject venom into the skin. The brown recluse and the widow spiders are considered venomous spiders; however, most spiders are not harmful to man.
Control of spiders is difficult outdoors because spiders do not tend to contact treated surfaces. Inside the house, space sprays containing Pyrethrin or pyrethroids are effective in killing spiders. Space sprays have little residual activity and should be applied when spiders are noticed. When spraying enclosed areas, care should be taken so spiders agitated by the spray do not drop onto the person doing the spraying. Repeat the treatment in 4 weeks to kill young spiders that hatch from eggs.
A list of recommended insecticides that are used in household pest control follows;
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Demon WPÂ Â Â Â Â Â Â Â Â Â Â Â Â
Dust formulations can be used in crawl spaces, attics, and utility areas to provide long-term protection. The insecticidal dusts tend to cling to the spider webs for long periods of time. When spiders chew their webs to recycle the silk they consume the toxicant and die.
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