Study of different herbicide molecules for the control of durum wheat weed

Abstract

In order to enhance the chances to rotate the herbicide molecules, the effectiveness of a new molecule, pinoxaden, was tested, comparing it with other herbicides used in wheat weed control. The trial was carried out comparing the following herbicide mixtures: 1) no weed control treatment; 2) Tribenuron Methyl (TM); 3) Clodinafop (C); 4) Tribenuron Methyl + Clodinafop (TM+C); 5) Pinoxaden + clodinafop + propargile (PCP); 6) Pinoxaden + clodinafop + propargile + Triasulfuron (PCP+T); 7) Pinoxaden + clodinafop + propargile + absolute Ioxinil and Mecoprop (PCP+IM). The new PCP+T herbicides mixture didn’t differ statistically from the traditional TMC treatment in terms of effectiveness, but the agronomic result of the new mixture was totally satisfactory, even taking into account that the marketing of this mixture is not aimed to compete with other existing herbicides but to widen the chance to rotate active principles in time and space, in order to control the onset of resistance phenomena.