INFLUENCE OF POSTEMERGENCE HERBICIDES ON TROPICAL SODA APPLE (SOLANUM-VIARUM) AND BAHIAGRASS (PASPALUM-NOTATUM)

Greenhouse and field experiments were conducted to evaluate herbicidal efficacy on tropical soda apple and bahiagrass. Acifluorfen, clopyral id, dicamba, fluroxypyr, picloram, and triclopyr were the most effecti ve postemergence herbicides, providing > 90% control of tropical soda apple plants with no injury to bahiagrass 145 days after treatment (DA T). Glyphosate and imazapyr resulted in effective (> 90%) control of b oth seedling and mature tropical soda apple plants. However, these her bicides caused severe (> 90%) damage to bahiagrass. Control of tropica l. soda apple with 2,4-D, AC-263,222, diuron, fomesafent lactofen, MSM A, sulfometuron: and triasulfuron was unacceptable (< 90%).