Red Rice (Oryza sativa) Control and Seedhead Reduction with Glyphosate

摘要

Glyphosate was evaluated at 0.8, 1.3, and 1.7 kg ae/ha applied at the two-leaf, four-leaf, or two-to three-tiller growth stage for red rice control. In addition, red rice seedheads were counted concurrently with soybena harvet at each of three locations to assess treatment effect on seedhead reduction. Field studies were conducted at Starkvile, MS, in 1994 and 1995 and Shaw, MS, in 1995. A significant rate response was not observed for red rice control 2 and 4 wk after treatment (WAT) Or for seedhead reductions.