Abstract
Systemic insecticides were evaluated as preplant broadcast and planting time furrow applications for control of Myzus persicae (Sulzer) on ‘Russet Burbank’ potatoes. Aldicarb and thiofanox were equally effective for control of aphids with both application methods, and these were more effective than disulfoton, phorate, or carbofuran. Bay Hox 3298, ( O, S dimethyl\[(dimethylamino)methy]ene]phosphoramidothioate), and aldoxycarb showed promise as systemic insecticides for control of aphids on potatoes. Acephate, FMC 27289, (2,3-dihydro-2,2-dimethyl-7-benzofuranyl[methy]\] \[(dipropylamino)thio\]methylcarbamate), and FMC 35001, (2,3-dihydro-2,2-dimethyl-7-benzofuranyl[(dibuty]amino)thio]methylcarbamate), showed some systemic activity against the green peach aphid on potatoes but not enough to be considered in an aphid control program on potatoes in eastern Washington.
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