Jim from Port Charlotte Florida writes
Talstar will kill spiders. However, it is not a contact kill product....it is made more for longevity and having a long residual. It will work much faster when a spider is present when you are spraying and you spray directly on the spider. It will still not die immediately, but rather quickly. Once the spray dries, if a spider walks over it at a later time, it will pick up the dried Talstar on its body, but it will take much longer to kill it. It can take hours to a day or so for it to finally kill the spider, depending on the size of the spider. Most all residual insecticides will work this way.
Answer last updated on: 12/22/2011
