1 This research was supported by grants from the Texas Peanut Producers Board and Valent USA.
Flumioxazin in combination with ethalfluralin provided early-season control of eclipta, pitted morningglory, and Texas panicum. Metolachlor plus flumioxazin failed to adequately control pitted morningglory (less than 80), while flumioxazin did not control yellow nutsedge. Eclipta control with flumioxazin plus dimethenamid, imazethapyr, or metolachlor combinations were at least 99. When flumioxazin was used in combination with dimethenamid, imazethapyr, or metolachlor, late-season yellow nutsedge control was greater than 70. Late-season eclipta control was greater than 80 with flumioxazin alone, dimethenamid plus flumioxazin applied preemergence (PRE), ethalfluralin applied preplant incorporated (PPI) followed by (fb) flumioxazin at 0.07 kgha applied PRE, imazethapyr plus flumioxazin at 0.09 kgha applied PRE, metolachlor plus flumioxazin combinations applied PRE, or ethalfluralin applied PPI fb imazapic applied postemergence (POST). Late-season pitted morningglory control was less than 65 for all herbicide programs. Flumioxazin alone controlled no greater than 25 pitted morningglory, while ethalfluralin plus flumioxazin combinations controlled less than 48. Late-season, flumioxazin alone controlled less than 70 Texas panicum, while ethalfluralin alone provided 84 control. All ethalfluralin plus flumioxazin combinations controlled 70 to 83 Texas panicum, while imazethapyr or metolachlor plus flumioxazin combinations controlled less than 70. Yellow nutsedge control was greater than 70 with imazethapyr or metolachlor plus flumioxazin combinations.
Available as PDF only - Use Download Feature
Keywords: eclipta, efficacy, Groundnut, pitted morningglory, Texas panicum, Yellow nutsedge
How to Cite:
Grichar, W. & Besler, B. & Brewer, K., (2004) “Control of Weeds in Peanut (Arachis hypogaea) Using Flumioxazin¹”, Peanut Science 31(1), p.17-21. doi: https://doi.org/10.3146/pnut.31.1.0004