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Weed Management in Conventional Tillage BXN Cotton in North Carolina and Georgia

M.D. Paulsgrove, J.W. Wilcut, A.C. York, James Collins


Three field trials, two in Bertie County, NC and one at Tifton, Georgia were conducted in 1994 - 1995 to evaluate Cotoran and Buctril systems for weed control, cotton injury and yield using cotton variety BXN 57. All plots received a blanket treatment of Treflan at 0.75 lb ai / A applied preplant incorporated. Herbicide systems evaluated consisted of a factorial arrangement of PRE, EPOST, POST and LAYBY herbicide treatments. PRE herbicide options consisted of 1) none or 2) Cotoran at 1.5 lb ai / A. EPOST options were 1) none or 2) Buctril at 0.375 lb ai / A or 3) Buctril at 0.375 lb ai / A + MSMA at 0.75 lb ai / A with a NIS at 0.25% v/v. POST options were 1) none or 2) Buctril alone at 0.375 lb ai /A. LAYBY options were 1) none or 2) Bladex at 0.80 lb ai /A plus MSMA at 0.75 lb ai / A with a NIS 0.25% v/v. Treflan PPI alone was considered the broadleaf weed check. Weed control of sicklepod [Senna obtusifolia (L.) Irwin and Barneby], coffee senna (Cassia occidentalis L.), common lambsquarters (Chenopodium album L. ), pitted morningglory (Ipomoea lacunosa L.), prickly sida (Sida spinosa L.), bristly starbur (Acanthospermum hispidum DC.), Florida beggarweed [Desmodium tortuosum (Sw.) DC.], and spurred anoda [Anoda cristata (L.) Schlecht.] were visually assessed 85 - 113 days after treatment depending on the treatment timing and results were averaged across locations.

Reprinted from Proceedings of the 1996 Beltwide Cotton Conferences pp. 1533 - 1534
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998