Red/blue cleavers like the ones shown in the picture above are tough to kill. Laboratory and field studies have shown that Arylex™ Active in Pixxaro EC™ and Zypar™ delivers better control of stressed blue/red cleavers than florasulam.
Well grown cleavers placed under cold stress in glasshouse; 5⁰ C day and 2⁰ C night temps for 7 days before spraying. Cold continued for another 14 days. Low light conditions.