Interactions between barban and benzoylprop etbyl, flamprop metbyl or flamprop isopropyl applied at two growtb stages for wild oat control in cereals

Abstract

Summary:Barban was combined with benzoylprop ethyl, flamprop methyl, or flamprop isopropyl, and the eflects of the combinations on wild oat control and crop yield were assessed, tn greenhouse experiments, the interaction in all three combinations was synergistic, following application at the 2‐ or 4‐leaf stage of wild oats. Under field conditions, combinations of barban + benzoylprop ethyl applied at the 2‐ or 4‐leaf stage of wild oats were as eflective for wild oat control and wheat yield response as barban at 028 kg/ha applied at the 2‐leaf or benzoylprop ethyl at 14 kg/ha applied at the 4‐leaf stage of wild oats. Mixtures of barban + flamprop methyl applied at the 2‐ or 4‐leaf stage of wild oats provided excellent wild oat control and wheat yield increases. Mixtures of barban + flamprop isopropyl applied at the 2‐ or 4‐leaf stage of wild oats provided comparable wild oat control and barley yield increases to barban (028 kg/ha) applied at the 2‐leaf or flamprop isopropyl (14 kg/ha) applied at the 4‐leaf stage of wild oats.