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1 October 2007 A Comparison of Flumioxazin and Rimsulfuron Tank Mixtures for Weed Control in Potato
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In 2004 and 2005, field research was conducted in Idaho to compare tank mixtures of flumioxazin at the 53 g ai/ha potato use rate with comparable tank mixtures of rimsulfuron at 26 g ai/ha for broad-spectrum weed control. Flumioxazin in two-way tank mixtures with metribuzin, EPTC, pendimethalin, S-metolachlor, or ethalfluralin provided greater than 90% hairy nightshade control, which was comparable with control by similar rimsulfuron two-way tank mixtures. Flumioxazin plus metribuzin or rimsulfuron were the only two-way mixtures with flumioxazin consistently providing 90% or greater redroot pigweed, common lambsquarters, and green foxtail control. Control of these weeds by any of the rimsulfuron two-way mixtures was almost always greater than 90%. Three-way tank mixtures containing flumioxazin or rimsulfuron controlled hairy nightshade, redroot pigweed, and common lambsquarters similarly, and control ranged from 89 to 100%. When metribuzin was not included with flumioxazin in three-way mixtures, control was 80 to 97% and not always comparable with the 89 to 100% control by similar rimsulfuron mixtures. Green foxtail control by flumioxazin or rimsulfuron three-way mixtures usually was similar and greater than 90%.

Nomenclature: Flumioxazin; rimsulfuron; common lambsquarters, Chenopodium album L. CHEAL; green foxtail, Setaria viridis L. SETVI; hairy nightshade, Solanum sarrachoides Sendter SOLSA; redroot pigweed, Amaranthus retroflexus L. AMARE; potato, Solanum tuberosum L. ‘Russet Burbank’.

PAMELA J.S. HUTCHINSON "A Comparison of Flumioxazin and Rimsulfuron Tank Mixtures for Weed Control in Potato," Weed Technology 21(4), 1023-1028, (1 October 2007).
Received: 16 November 2006; Accepted: 1 July 2007; Published: 1 October 2007

tank-mix partner
three-way tank mixtures
two-way tank mixtures
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