Occasionally finding spiders in your home isn't a cause for concern, even if you dislike the eight-legged arthropods; spiders eat insects and other arthropods, reducing pest issues, and most species of spiders aren't harmful to humans. However, if you have a lot of spiders in your home, you can solve the spider population problem with both chemical and non-chemical control strategies.
Keeping Spiders Out
Reduce spiders in your home by keeping grass or weeds near your home cut short. Trim shrubs or trees that make contact with the home. Keep piles of bricks and firewood away from your home and destroy any spider webs or egg sacs you find. In addition, replace mercury or incandescent outside lights with yellow lights, which attract fewer insects that spiders eat. Finally, caulk cracks in the foundation, and make sure door and window screens are tightly sealed.
Cleaning your house carefully reduces insects, which spiders eat. Remove clutter, such as stacks of magazines, bags, cardboard boxes or piles of clothing. Spiders often thrive in closets, basements, garages and attics, so keep these locations clean. Tape boxes shut before storing, and keep boxes and clutter off the ground, when possible. Sweep up crumbs regularly, and don't leave food or dirty dishes out overnight. Sweep away spider webs with a broom, or vacuum them up.
Read product labels carefully before using an insecticide. Apply insecticides in cracks and crevices, baseboards and other places that spiders and pests typically hide. You can also kill spiders by spraying them directly, but it's easier to smash them or vacuum them. Don't use fogging insecticides to reduce spiders. However, sticky traps may help capture some spiders. Professional pest control services may be licensed to use pesticides that are more effective in reducing severe spider infestations.
Treating Spider Bites
Most spiders won't bite unless they are trapped against your skin. In addition, many suspected spider bites are actually caused by other pests or medical conditions. If you think you have a spider bite, use a topical antiseptic to prevent infection, and apply ice to reduce pain and swelling. You don't need to see a doctor unless you suspect you have been bitten by a black widow or brown recluse spider, or if symptoms do not improve.
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