Hello, I work at a Water Treatment Plant and we have a few buildings that during the summer time there are a lot of Barn spiders. I would like to know what I can use to kill them that is safe to spray around water. The water we treat is for drinking. Thank you for your help.

No doubt the best option would be the federally exempt Essentria IC. It’s made with food grade essential oils and labeled for use around ponds, lakes, rivers and other waterways for controlling a wide range of pests including spiders. Considered to be a minimal risk type product, its a good choice for sensitive areas like you need to treat.

Now if you review the label, you’ll learn it can be sprayed using a standard pump sprayer. But you can also use a fogging machine to apply it so if you have a large area to treat, using a misting machine like our FM5330 or FM6309 would be a easy and effective way to get broad coverage without making a mess.

Here are links to these items in our cart. Please show your support for our business by purchasing the items we recommend from the links provided. Remember, this is the only way we can stay around and be here to answer your questions and keep this valuable web site up and running. Thanks for your business!

Essentria IC3: https://www.bugspraycart.com/exempt/liquid/eco-excempt-gal

Solo 454 Sprayer: https://www.bugspraycart.com/equipment/sprayers/solo-1-gallon-sprayer

Fogmaster Mini Fogger: https://www.bugspraycart.com/equipment/foggers/fogmaster-5330-120-volt

FM6309: https://www.bugspraycart.com/equipment/foggers/fogmaster-6309-120-v