Malathion, fenthion, resmethrin (SBP-1382). Actellic (methyl pirimiphos), Dowco 214, Dursban (Chlorpyrifos). Baygon 1 MOS, 5% pyrethrins, and Naled (Dibrom) were tested by ultra low volume (ULV) ground equipment against caged adult stable flies, Stomoxys calcitrans (L). Resmethrin at 0.25 and actellic at 1.0 gal./hr. gave a minimum kill of 95% at a vehicle speed of 5 miles per hour (mph). Malathion, fenthion, Baygon 1 MOS, Dursban, and 5% pyrethrins killed 92% or more of flies at dosage rates of 1.0, 0.5, 4.0, 1.0 and 4.0 gals./hr., respectively at 10 mph. Dowco 214 killed 75 and 84% at 0.5 and 1 gal./hr., respectively at 5 mph. Tests of 3% Dibrom 14 by volume in diesel oil, heavy aromatic Naphtha (HAN) or Chevron 400 solvent dispersed at 10 gals./hr., 10 mph, killed a minimum of 96% of the flies. Two percent Dibrom 14 by volume in diesel oil applied at 10 gals./hr., 10 mph killed 89%, and 1% at 20 gals./hr. killed 98% of the flies.