Eric from San Mateo, Ca writes
Termidor SC is labeled for spiders, but is not our first choice for that purpose. Termidor is the best product on the market for social insects, like termites and ants. For spiders, you need something with a little more "kick" and also typically a powder works best because it is easier for the spiders to pick up on their bodies. Cyper WP is a powder that you mix with water and apply using a 1 gallon hand pump sprayer. We sell Cyper WP in our spider control kit and it is our most popular selling product for spiders and roaches.
Answer last updated on: 03/06/2012