Lantana is a woody native plant that is toxic to livestock. Although it is sold as an ornamental, commercial varieties are sterile. Lantana producers allelochemicals in its roots and stems that inhibit the growth of other plants surrounding it. Additionally, these same chemicals give the leaves an acidic tastes which inhibits ingestion.
Mowing has not been effective to control Lantana due to the root system. High rates of glyphosate will kill the plant, but result in significant forage loss. Two applications of fluroxypyr does provide acceptable control, with the first application being made in the fall, 2-4 weeks before the first frost. The spring application should be made 2-4 weeks after spring-green up. See Control of Lantana in Pastures for more information.