Douglas WestfallDoug Westfall eagle85@flash.net1111 Claiborne Dr. Long Beach, CA To all interested in the product which "devistates" mealies and aphids, it is "Imidacloprid." There has been a "typo" using the spelling "Imidaproclid." The above is the only active ingredient in Bayer's Tree and Shrub Insect Control. Doug