Hi Gang, The note from Jane M. prompted me to look in my computer files. I do use cyfluthin for varous purposes, not often but I do use it. I remember writing that it is my new "favorite" insecticide. I like it because: 1. It is less toxic than caffeine for mammals and birds 2. Dermal exposure seems nonexistent (so you have to drink it or breathe in tons of it to experience problems) 3. It breaks down very quickly (few days) when exposed to sunlight (remember DDT which never broke down) 4. It floats on water and so breaks down quickly there too because of sunlight exposure. 5. It lasts months in soils but does not migrate easily (won't easily get into ground water). In any event, it does break down after some months in the ground. 6. It is a problem for aquatic creatures except that it floats on the water and does not dissolve in the water, and it breaks down quickly in sunlight. 7. It works really well for indoor insects and outdoor insects, and if you spray it in the home it is safe if you don't lick the floor. Even if a dog licks the floor, it apparently cannot possibly get enough to be harmed. 8. It is sold as "Bayer Advanced Home Pest Control" (Lowes) http://bayeradvanced.com/home/products/… Anyway, as fo any pesticide, be sure to read about it and understand its harmful aspects. Also remember, all pesticides should be stored away from small children and pets. Cyfluthrin, toxicity info (at EXTOXNET) http://extoxnet.orst.edu/pips/cyfluthr.htm Final note: Cyfluthrin is not a systemic insecticide--so it will wash off of plants. Cordially, Joe Rainlilies are popping up.