That red hourglass on the black widow spiders back...that is how you know it is one of them.
Black widow spiders are night dwellers, dormant during the day with their web close to the ground in a protected place.
You usually bring black widow spiders into the house in your firewood load and then they move into things like shoes that you don't wear often. Unlike the brown recluse spider who ventures out to feed, black widows feed at their web.
They only bite as a defense response when you push them against your skin like when you put your hand on them in the wood pile. But be aware, their bite is venomous and can cause a significant reaction.
- Natural (Organic): Trim grass, brush, bushes that are next to the walls. Keep the kids sandbox closed tightly as well as any other concealed protected cavities need removal or constant maintenance to tell the black widow spider it is not a good place to set up her residence because the human will keep irritating her.
- Lights tend to bring the food types that they eat...bugs of all types...so it follows that turning the light out or dimming it or putting in a yellow bulb is one method to make it harder for the spider to get food and learn it is time to relocate.
- Inspect your walls and seal up all small openings, cracks, etc to deny entry to the spider and his fast food friends.
- (NO COST TIP) Vacuum up any webs, eggs, nests that you can see. Some of them may be black widow owned and some not.
- Remember the adage: Squish first and ask questions later. The problem here is that spiders really do help us by eating a lot of insect pests so think before squishing and if its not likely a black widow or brown recluse, let it be...maybe is a good thing.
- Homeowner applied: You can purchase sprays locally and apply them as directed.
- Professional applied: Applications by professionals will deter longer because they use stronger chemical concentration than a homeowner can obtain locally. Search the internet for a professional and their products plus contact information at their web site.