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Control of Big Sagebrush (Artemisia tridentata) with Pelleted Tebuthiuron

Kirk C. McDaniel and John F. Balliette
Weed Science
Vol. 34, No. 2 (Mar., 1986), pp. 276-280
Stable URL: http://www.jstor.org/stable/4044212
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Control of Big Sagebrush (Artemisia tridentata) with Pelleted Tebuthiuron
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Abstract

Ground applications of pelleted tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethyl-urea} at 0.6 kg ai/ha (20% formulation) reduced big sagebrush (Artemisia tridentata Nutt. # ARTTR) density by an average of 84 and 92% after 28 months, whereas 1.1 kg/ha killed 94 and 97% of the plants when applied in January or May, respectively. Total standing crop of grasses was unaffected 4 months after tebuthiuron applications. Significant increases in grass production occurred during the second and third growing seasons following tebuthiuron treatment. Desirable forage grasses such as galleta [Hilaria jamesii (Torr.) Benth.], blue grama [Bouteloua gracilis (Wild. ex H.B.K.) Lag. ex Griffiths], and crested wheatgrass [Agropyron cristatum (L.) Gaertn.] generally increased in tebuthiuron-treated plots, whereas sand dropseed [Sporobolus cryptandrus (Torr.) Gray # SPECR] and ring muhly [Mulenbergia torreyii (Kunth.) Hitchc. & Chase] production remained unchanged in comparison with untreated areas.

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