Wednesday, November 7, 2012

Another Black Widow Spider

In March, Cottage Country Pest Control did a blog post about black widow spiders and then in May Ross received a customer call about a black widow spider at a house in Penetanguishene, which I did another blog post about. They are native species to the United States, Canada and Mexico and the Northern Black Widow is generally found in British Columbia, Alberta, Saskatchewan, Manitoba and Ontario. As stated in the previous posts, it is rare to see them and even if you know where to look, you may never see one in the wild. They can generally be found around trash piles, sheds, under rocks, wood piles, etc. Anyplace that is dark and a little damp is a great place for them to hide.

Anyway, a few days ago Ross got another call about a black widow spider again at a house in Penetanguishene, so we thought it would be a good time to do another post about them and what can be done to help prevent spiders in general.

Female black widow spiders are known for their distinctive black and red colouring and a mature female black widow spider is usually around 1.5 inches long and about .25 inches in diameter. Mature male black widow spiders are very different in appearance to the females. Males are much smaller than females with their bodies at less than 1/4 inch, while juveniles have a distinctly different appearance then the females (and some males) in that their abdomens are greyish to black in colour with white stripes running across them spotted with orange or yellow.

Controlling the spider population in and around your home is "easily" done by reducing the number of insects in and around your home. Using IPM is the best way to effectively control spiders (and other pests).

If you have any questions or concerns Call Cottage Country Pest Control at (705)534-7864 or email us to book an appointment--and remember - it's almost always better and cheaper to deal with pest control problems when they are small. 


  1. Like you suggest here, I often encounter spiders as large my palm. They leave mess such as web that can add to unsightliness in the housing interior.

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