Py Insect Killer Is A Highly Effective Concentrated Insect Killer Based On A Man Made Version Of Natures Own Insecticide Pyrethrum Derived From Chrysanthemums. – The Active Ingredient Cypermethrin Is For The Control Of Insects Indoors & Outdoors.py Bug Killer Concentrate Is Specially Formulated For Use On Roses, Cabbage, Broccoli, Cauliflower & Potato. You Cannot Use It On Any Other Crop Types.it’s All You Need For The Rapid Control Of A Huge Variety Of Plant & Garden Pests Including Greenfly, Blackfly, Whitefly, Thrips, Caterpillars, Flea Beetles, Capsid Bugs, Weevils, Leafhoppers & Sawfly.py Insect Killer Can Be Used Up To 7 Days Before Picking.at The First Signs Of Insect Activity Apply As A Fine Spray, Covering Both Sides Of The Foliage When Treating Plants.use Plant Protection Products Safely. Always Read The Label and Product Information before Use. contains 10g/l (0.96%w/w) Cypermethrin