This is why fall application of Far-Go and Buckle should be made when temps are less than 40F . The mode of action of triallate is not well understood, but triallate kills wild oat seedlings as they germinate. Once susceptible wild oat seedlings emerge through the soil, the herbicide will not control wild oat plants. It is important that Far-Go and Buckle be applied and incorporated correctly for maximum weed control. Extended period of cold soil in spring.
Cold temperatures slow the transition of triallate into the gas form.
Wild oat emergence can occur at 40 F soil temperature. Wild oat emergence may occur before triallate changes into a gas. Warm temps after fall applications. Some degradation may occur resulting in less than adequate amounts needed for wild oat control the next spring. Granules applied in the spring.