2006-06-13 07:14:47 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
That depends on whether you want its shelf life or its half life in application. Shelf life for most pesticide formulations, if stored according to manufacturer's instructions, is about 2 years. Diazinon is a bit different - its breakdown product is MORE toxic than the original molecule (higher mammalian toxicity!). The problem is that you don't know how much has degraded without analysis - so be skeptical about anything older than 2 years. As for half life in application : about 4 days on plant.
2006-06-13 12:27:48 · answer #1 · answered by Bruce H 3 · 2⤊ 0⤋
Diazinon, an organophosphate pesticide, is not a terribly persistent chemical compared to some of the organochlorine pesticides.
Average half-life in soil is about 40 days. On foliage, the half-life is about 4 days.
In mammals, the half-life is about 12 hours.
2006-06-13 14:33:53 · answer #2 · answered by Dave_Stark 7 · 0⤊ 0⤋