Pest Advice Blog

Prevent a spider infestation indoors

Some homeowners find spiders to be an annoying, but inevitable, part of owning a house. But this definitely doesn't have to be the case – a spider infestation can be prevented in many instances. While a severe, venomous spider problem may require the assistance of pest control professionals, there are some tactics residents can use to eliminate a spider invasion themselves if their preventative tactics fail to keep the eight-legged creatures at bay.

Drawn indoors
Spiders don't end up in homes accidentally. They are often seeking the same things residents look for – food, water and shelter. A mild winter earlier this year increased the pest population, and a hot, dry summer has led many spiders to head into houses to find resources.

The pests have interesting ways of finding paths into homes. While many pests, including some spiders, can easily enter a residence through a ripped screen, open door or hole, spiders also use their unique senses to find other ways to enter. Amy Grandpre, the Yellowstone County urban horticulture assistant, told Wyoming NBC affiliate KULR that some spiders use their infrared vision to spot heat leaks around homes to gain entry.

The first step in preventing all pests? Sealing up holes and cracks around your home. Pay special attention to the areas around windows and doors, where spiders may spot heat leaks and try to enter. Even tiny cracks should be sealed, since small pests can get through tight spaces.

Because spiders often find shelter in cluttered areas, take the necessary steps to ensure your yard is free from debris and potential hiding places. Piles of wood, compost bins, cluttered sheds and piles of garden equipment can be homes to spiders who may try to make their way inside once the weather becomes too chilly.

Simple pest control
If you find a few spiders indoors, there's no need to panic. Some easy steps can ensure spider populations don't multiply and take over your house. If you spot a spider inside, carefully remove it. Be sure not to touch the pest with unprotected skin, because a venomous spider bite can be dangerous. Keep the home clean, and regularly sweep up or vacuum spiderwebs or cobwebs found in the home.

If an invasion appears too significant to manage on your own, it's important to contact insect control professionals. Exterminators can assist in eliminating the problem, especially if the infestation appears to consist of venomous arachnids, such as black widows or brown recluse spiders.
