Evaluation of new and existing desiccants in lentil
Globally, herbicide resistance has become a major challenge for many producers. In western Canada, many lentil (Lens culinaris L.) producers have great difficulty controlling Group 2 resistant biotypes. Two of these problematic weeds, wild mustard (Sinapis arvensis L.) and kochia (Kochia scoparia), are particularly challenging for lentil growers and can cause extensive yield loss when not adequately controlled. Desiccation is primarily used to dry down lentil for harvest ease and efficiency but can also be used as a late season control for actively growing weeds. The objective of this project is to evaluate the response of wild mustard and kochia to different herbicides, tank mixed with two different rates of glyphosate (450 g a.e. ha-1 and 900 g a.e. ha-1) at Saskatoon and Scott, Saskatchewan over a 2 year period. Desiccation occurred when the lentil seed moisture content was approximately 30%. Preliminary results are under investigation. Evaluation of seed and plant moisture of the treated plots is ongoing, along with an evaluation of the effects of the treatments on viability and vigour of affected weed seeds.
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