Incorporation depths of imazaquin, metribuzin, and chlorimuron for common cocklebur (Xanthium strumarium) control in soybeans (Glycine max)
1989
Wesley, R.A. Jr | Shaw, D.R. | Barrentine, W.L.
Field experiments were conducted in 1986 and 1987 to evaluate the effect of herbicide incorporation to various depths on common cocklebur control with imazaquin, a tank mix of imazaquin and metribuzin, and a preformulated mixture of chlorimuron and metribuzin in soybeans. Herbicide rates included were two-thirds and the full registered rate. All treatments, except chlorimuron plus metribuzin (50 plus 320 g ai/ha, respectively), controlled more common cocklebur when incorporated to depths of 2.5 to 7.6 cm than when left unincorporated. Also, imazaquin at 90 g ai/ha and the tank mix of imazaquin plus metribuzin at 90 plus 280 g ai/ha, when incorporated, controlled more common cocklebur than higher rates of the same combination whennot incorporated. Commmon cocklebur control was similar with 2.5-, 5.0-, and 7.6-cm soil incorporation depths.
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