A field experiment was conducted in 1986 and 1987 to determine the minimum effective rate (MER) of imazaquin and chlorimuron applied postemergence to common cocklebur. MER is defined as the quantity ...

About as popular as the cockroach, and nearly as plentiful, the common cocklebur plant is well known to hikers — especially ones who hike with long-coated dogs — and of course it's recognized as a ...