Liquid in-furrow placed pesticides were applied at planting with three applicator types operated under a variety of speeds and output volumes. On cotton, disulfoton (Disyston 8 EC) was applied in-furrow and clomozone (Command 4 EC) herbicide induced chlorosis and thrips injury were used as indicators of applicator performance. A second test used corn and norflurazon (Zorial 80 DF) herbicide applied as an in-furrow, at planting treatment; degrees of norflurazon injury indicated applicator performance. The FMC Custom Delivery System (CDS) applicator provided superior performance when calibrated at 9.5 l/ha volume versus other applicators or the CDS calibrated according to manufacturer suggestion. Operation speed had little effect on applicator performance.