Bacillus Thuringiensis Thuricide Concentrate, commonly referred to as BT, is a bacterium which targets many moth and butterfly larvae (caterpillars). Within 2 – 3 days of ingestion the insects will stop feeding and die. Active Ingredient: Bacillus Thuringiensis Kurstaki 0.8% Will effectively treat the following crops: Almonds, Apples, Pears, Broccoli, Brussels Sprouts, Cabbage, Cauliflower, Collards, Kale, Mustard Greens, Turnip Greens, Beans, Carrots, Celery, Chard, Chinese Cabbage, Endive, Escarole, Garlic, Kohlrabi, Lentils, Lettuce, Onions, Parsley, Radishes, Spinach, Squash, Cherries, Cucumbers, Melons, Potatoes, Currants, Blueberries, Caneberries, Blackberries, Dewberries, Raspberries, Eggplant, Peppers, Tomatoes, Filberts, Watermelons, Grapes, Mint, Strawberries, Oranges, Peaches, Nectarines, Pecans, and Walnuts Will effectively kill the following pests: Redhumped caterpillar, Tent caterpillar, Redbanded leafroller, Tufted apple budmoth, Variegated leafroller, Fruit tree leefroller, Gypsy moth, Cabbage looper, Imported cabbage worm, Green cloverworm, Diamondback moth, Omnivorous leafroller, Tomato hornworm, Tomato fruitworm, Filbert leafroller, Rindworm complex, Grape leafroller, Roughskinned cutworm, Citrus cutworm, Orange dog, and Fall webworm Due to changes in shipping regulations, we cannot ship this item to California.