Bonide Chickweed Clover & Oxalis Killer 1 Gallon kills chickweed, clover, oxalis, plantain, speedwell, canadian thistle, ground ivy, dandelion and many others. Convenient ready-to-use formula in trigger sprayer container. No mixing, no mess. Apply to actively growing weeds when air temperatures are below 80 degrees. Fast-acting, begins working overnight and is rainproof within hours. Kills over 150 different, troublesome broadleaved weeds in home lawns. Made in the usa.