When is the best weed control for dollar-weed?

Pre-emergence is the best time for control of dollar-weed. But pre-emergence schedules in late fall and winter must rely only upon herbicides with the active ingredient and common name isoxaben. Post-emergence schedules for the moisture-loving plant in question (Hydrocotyle vulgaris) offer a wider variety of products that coordinate with different types of grasses, with clopyralid acceptable for bahiagrass, bermudagrass, centipedegrass, St. Augustine grass, seashore paspalum, perennial ryegrass and zoysiagrass.