Diazinon (*Diazinon, *D•z•n diazinon)
Diazinon is a nonsystemic, organophosphate insecticide with contact, stomach, and respiratory action. Diazinon has a broad spectrum of insect control. It is recommended in the apple programs in the 1/2-inch green and prebloom sprays for scale, aphid, and fruitworm control and in the petal fall spray for San Jose scale and rosy apple aphid. Diazinon AG600 WBC is not to be applied to apple after petal fall. Diazinon 50W is labeled on the tree fruits for general insect control and carries a 21-day preharvest interval. Due to recently announced changes on the pesticide label that were not available at the time of publishing this guide, please read the label before use of this compound.