“As a result, fewer stockers were placed on wheat than normal and many of those that did graze were forced to move off wheat early due to lack of forage. We’ve seen large placements of stocker cattle into feedlots the last few months.”
“What we found that was new was how these weeds have evolved resistance to glyphosate in such a short time. If you look at the evolution of glyphosate resistance in Palmer amaranth, based on our research, it appears to have occurred very rapidly.”
However, in the wake of an extremely dry fall and winter and the window for fertilizing quickly closing, Oklahoma State University Cooperative Extension experts see three different scenarios taking shape.
At this stage of the growing season, weed control involves three important factors: weed size and health at the time of herbicide application, tank-mix partners and the presence or absence of herbicide resistant weeds.
Alternatives to wheat include canola, corn, cotton, sesame, and soybeans (Table 1). Costs are estimated for the Alfalfa, Garfield, and Kingfisher county areas. Yields are based on 20-year averages (1997-2016).