Bonide Liquid Thuricide is a liquid formulation of bacillus thuriniensis (BT) that controls caterpillars, loopers, cabbage worms, hornworms, leaf folders, and leaf rollers with its active ingredient BT Kurstaki 0.8%. One pint of this liquid Thuricide treats up to 10,875 square feet. Will not harm beneficial insects. Comes in a ready-to-use 1 pt. pour bottle being able to cover 10,875 sq. ft.