Eight experiments were conducted in 1994 and 1995 in Louisiana to evaluate interactions associated with use of Buctril (bromoxynil) and Assure II (quizalofop-P), Fusilade DX (fluazifop-P), or Select (clethodim) in respect to rhizome johnsongrass [Sorghum halepense (L.) Pers.] control. Treatments consisted of Buctril at 1.5 lbs ai/A applied 7, 3, and 1 d before; in tank mixture with; or 1, 3, and 7 d after application of Assure II (0.07 lb ai/A), Fusilade DX (0.19 lb ai/A), and Select (0.13 lb ai/A). Graminicides were applied on the same day. Visual estimates of percent johnsongrass control were recorded 14 and 28 d after treatment (DAT). Data were also expressed as a percent of the control (percent of graminicide check) obtained with each individual graminicide applied alone. Data were subjected to analysis of variance and means were separated using Fisher's Protected LSD (P ≤ 0.05).