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Weed Control in Roundup Ready™ Cotton

E.C. Murdock, A. Keeton, T.D. Isgett


Weed control in Roundup ReadyTM cotton was evaluated in three experiments at two locations in South Carolina in 1995. Roundup applied postemergence (POST) provided excellent early-season control of Palmer amaranth up to 9 inches in height. POST control of sicklepod and common cocklebur with Roundup ranged from 88 to 100 and 90 to 100% 2 to 6 weeks after treatment (WAT), respectively. Roundup provided 71 to 93% control of entireleaf morningglory and ivyleaf morningglory. At one location two applications of Roundup were need to achieve satisfactory control. In most experiments a soil-applied herbicide improved late-season broadleaf weed control.

Reprinted from Proceedings of the 1996 Beltwide Cotton Conferences pg. 1531
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998