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Home Publications Tree Planters' Notes Tree Planters' Notes Volume 23, Number 2 (1972) Weed Control by Herbicides Promotes Growth of Cottonwood Cuttings

Weed Control by Herbicides Promotes Growth of Cottonwood Cuttings

Production of cottonwood at close spacing (40" x 12") fails on Brazos Bottom agricultural soils because of severe competition from broadleafed weeds and Johnson grass. Weed competition reduces both growth and survival (fig. 1). Weed control with herbicides would be an ideal solution if cottonwood would tolerate levels of herbicide dosage heavy enough for sustained weed control throughout the first growing season. One pound per acre of active ingredient of Trifluralin generally gives good control only for the first part of the growing season. Martin and Carter (1966)2 found that cottonwood would tolerate rates of up to 3 pounds per acre of active ingredient of the preemergent herbicide Trifluralin.

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Author(s): Ronald A. Woessner

Publication: Tree Planters' Notes - Volumes 23, Number 2 (1972)

Volume: 23

Number: 2

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