Trimec 1000 Low-Odor Broadleaf Herbicide delivers post-emergence control of tough broadleaf weeds, including clover, dandelion, chickweed, plantain, and many more. A mixed-amine formulation, Trimec 1000 contains four powerful ingredients formulated to help translocate through the plant and into the roots of even the most deep-rooted perennials. Trimec 1000 is rainfast in as little as eight hours, and treated areas can be reseeded in three weeks.