While Preen is a well-respected brand and has one ... rather than kill any existing weeds in the garden. The active weed-control ingredient is trifluralin which is often used in commercial ...

Although dandelions and crabgrass are only 2 of 250 kinds of weeds that the Preen Weed & Feed can handle ... Some of their product lines include lawn fertilizers, grass seed, weed killers,weed and ...

However, weed control within the first few years of establishment may ... The preemergence herbicide most commonly used by homeowners is trifluralin (Preen, etc.). Preemergence herbicides are applied ...