Talstar is the #1 recommended product for bagworm control. Talstar is known to have a very low toxicity for mammals making it safe to use around people and pets. Please visit the Talstar product page where you can review Talstar product label as well as the MSDS. Talstar applications should start in April and continue monthly through June for bagworm control. Be sure foliage is sprayed thoroughly to the point of runoff to achieve adequate coverage.