Effect of Pendimethalin or S-Metolachlor Co-Applied with Glyphosate and Pyrithiobac On Cotton Growth and Yield

Research was conducted at the Dean Lee Research and Extension Center in Alexandria, LA, Northeast Research Station in St. Joseph, LA, Red River Research Station in Bossier City, LA, and the Delta Research and Extension Center in Stoneville, MS in 2009.  This research investigated the effect of co-applying pendimethalin (Prowl H₂O) or S-metolachlor (Dual Magnum) with glyphosate plus pyrithiobac (Staple LX) on cotton growth and yield.  Data collected included cotton phytotoxicity, plant heights, plant node number, and cotton yield.