Quote Originally Posted by LOC NAR on probation
You can get pyrithrum spray in a encapsulated spray. Pyrithrum disappates quickly. So the encapsulated formula hangs on untill the critters walk on it and then it's like a land mine. Normal pyrithrum spray will work just make sure it's only pyrithrum and spray every 3 to 5 days.

If you get time release be carefull about harvest time I'm not sure how long it last. Could be bad for harvest.
Use the kind safe for fruits and veggies, but do NOT spray it on a budding plant. While it's not particularly toxic to humans in the spray form, when it's smoked you're just asking for trouble!