Mar 25, 2014 - 08:10 AM
Foggers don't kill spiders. The reason is that spiders don't breath through their body like insects. They are actually not considered "insects" as they have 8 legs and are "arachnids". They breath differently, and behave differently and are not affected by foging insecticides like insects.
The best way to kill spiders is to spray directly with a contact insecticide.