Azinphos-methyl (*Azinphos-M, *Guthion, *Sniper)
Azinphosmethyl is a nonsystemic organophosphate insecticide with contact and stomach action labeled for use on all tree fruit crops. Products containing azinphos-methyl provide a broad-spectrum control of fruit pests. However, mites, aphids, leafminers, leafhoppers, pear psylla, and tufted apple bud moth have developed resistance. Azinphos-methyl is highly suited for use in integrated pest management programs because all stages of
Stethorus,
Amblyseius fallacis, and
Zetzellia mali tolerate applications at the suggested rates. However, these products are highly toxic to bees exposed to direct treatment or residues on crops or blooming weeds. The amount of active ingredient that can be applied per acre per year is 4.0 pounds for apples, 3.0 pounds for pears, 1.5 pound for cherries, and 2.25 pounds for peaches and nectarines. Do not enter or allow worker entry into treated areas during restricted entry interval (REI), which is set for 14 days (15 days for cherries) for all kinds of activity. Due to current label changes for azinphos-methyl, the product is not allowed for use on peaches and nectarines after September 30, 2006.
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