Bolero is another commonly-used tank mix partner for Stam or propanil. Bolero's disadvantage would be that it requires wet soil conditions for optimal activity and few Missouri growers are interested in the routine flushing that is required to maintain this activity. Facet is the newest tank-mix partner and has also gained a lot of popularity. Facet has fair postemergence activity by itself and is an excellent barnyardgrass herbicide. Stam and Facet together seem to have an almost synergistic effect, providing more weed control than would be expected.
Facet also has one of the longest residual activity periods if moisture is good.
Growers have used a variety of propanil-Facet mixtures. An expensive, but dependable option is to use a full rate of both. This combination can control grasses that have gotten too big for Stam or propanil alone. The full rate of Facet also provides excellent residual weed control and will take care of most growers until flood up. While this is one of the more expensive weed control programs, growers routinely spend even more money trying to be cheap on the front end and then having to clean up later.