approximately 30 PSI. Where necessary, a nonionic surfactant or crop oil

concentrate was used with post-emergence herbicides.

 The herbicides used in these experiments are listed in Table 1.

 The experiments were either a split plot or randomized complete block design

 with three or four replications. Results were subjected to analysis of variance

 and means were separated using Fisher's Least Significant Difference Test, at the

 0.05 level of probability.



 RESULTS AND DISCUSSION
 Florida

 Weed control for individual herbicide treatments was similar in till and

 no-till systems in 1993 and 1994 (Tables 2, 3, 4, and 5). In 1993, the level of

 control of both grass and broadleaf weeds was good to excellent (83-100 percent).

 Treatments that included Atrazine controlled 95-100 percent of all broadleaf

 weeds. The addition of a crop oil concentrate increased the activity of Atrazine

 on grasses when compared to Atrazine alone. Herbicide combinations of Dual,

 Ramrod, and Prowl with 2,4-D or atrazine did not significantly improve weed

 control over Atrazine applied alone in 1993. In 1994, herbicide combinations of

 Ramrod and Prowl generally improved grass control compared to Atrazine applied

 alone. However, the level of broadleaf weed control was not improved by

 herbicide combinations compared to Atrazine alone.

 Treatments that included Dual or Ramrod caused moderate to severe pearl

millet injury in 1993. The data in Tables 2 and 3 show that Dual injured pearl

millet more than Ramrod. Herbicide treatments that included Prowl also caused

moderate injury to pearl millet. The injury ratings were recorded approximately

two to three weeks after herbicide treatment. As the growing season progressed,

pearl millet recovered from this herbicide injury as reflected in yield data in

Tables 2 and 3. Severe herbicide injury, caused by Dual, resulted in reduced

pearl millet yield, but the early pearl millet injury recorded in excess of 95

percent did recover and produced some grain in both conventional and no-till

systems. These data would indicate that herbicides in the same chemical family