Aspectos recientes en el control del coquito (Cyperus rotundus L.)

In this study a new formulation of EPTC, the new products glyphosate and napropamide and high rates of butilate, vernolate and EPTC were tested in purple nutsedge (Cyperus rotundus L.). The slow release formulation of EPTC was more persistant than the regular EPTC. High rates (16 kgia/ha) of the thiocarbamates controlled nutsedge for 60 days but did not erradicate it. All three products performed similary. Napropamide in preemergence (3 and 6 kg/ha) did not control purple nutsedge. Glyphosate at 1 kg/ha gave satisfactory control for 45 days and there was no advantage of split applications over a single one