Broadening weed control with imazamethabenz combinations |
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| Authors: | P N P Chow |
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| Institution: | Agriculture Canada, Research Station, Brandon, Manitoba R7A 5Z7, Canada |
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| Abstract: | Broad-spectrum weed control by use of imazamethabenz (AC 222 293) in herbicide combinations was investigated in the greenhouse. Imazamethabenz at rates ranging from 0·1 to 0·4 kg a.i./ha effectively controlled wild oats (Avena fatua L.). Additional control of redroot pigweed (Amaranthus retroflexus L.) was achieved when imazamethabenz, plus octoxynol surfactant, was applied in combination with MCPA (amine or ester) or commercial MCPA mixtures (bromoxynil/MCPA and cyanazine/MCPA). Only inclusion of propanil/MCPA in the combination reduced wild-oat control by imazamethabenz at the lower rate (0·1 kg/ha). Control of green foxtail (Setaria viridis (L.) Beauv.) was also obtained by use of fenoxaprop-ethyl in combination with imazamethabenz (plus octoxynol). Three-way mixtures of imazamethabenz (or plus octoxynol), MCPA alone or mixture, and fenoxaprop-ethyl may provide practical control of grass and broad-leaved weeds in the field. |
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| Keywords: | Imazamethabenz AC 222 293 octoxynol MCPA fenoxaprop-ethyl wild oats green foxtail redroot pigweed Avena fatua L Amaranthus retroflexus L Setaria viridis (L) |
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