Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-22T19:47:14.103Z Has data issue: false hasContentIssue false

Over-the-top Applications of Herbicides in Cotton

Published online by Cambridge University Press:  12 June 2017

H. F. Arle
Affiliation:
Arizona Agr. Exp. Sta., Phoenix, AZ 85040
K. C. Hamilton
Affiliation:
Arizona Agr. Exp. Sta., Tucson, AZ 85721

Abstract

Single and repeat applications of herbicides or herbicide combinations were made over-the-top of young cotton (Gossypium hirsutum L.). DMSA (disodium methanearsonate) and MSMA (monodosium methanearsonate) applied 4 or 8 weeks after emergence had less effect on cotton yield, boll components, and fiber properties than did applications made 12 weeks after emergence. Most single, over-the-top applications of DSMA, fluometuron [1,1-dimethyl-3-(α,α,α-trifluoro-m-tolyl)urea], or DSMA with fluometuron 4 weeks after emergence did not affect cotton yield, boll components, or fiber properties. One or two applications of diuron [3-(3,4-dichlorophenyl)-1,1-dimethylurea] or prometryn [2,4-bis(isopropylamino)-6-(methylthio)-s-triazine] alone, or with DSMA, reduced cotton yields. Applications of 1.1 and 2.2 kg/ha of fluometuron over-the-top of cotton 2 to 8 weeks after emergence did not affect cotton yields, boll components, or fiber properties.

Type
Research Article
Copyright
Copyright © 1976 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Abernathy, J.R. and Ray, L.L. 1973. Using MSMA to reduce diuron induced toxicity in cotton. Proc. S. Weed Sci. Soc. 27:121. (Abstr.).Google Scholar
2. Arle, H.F. and Hamilton, K.C. 1971. Topical applications of DSMA and MSMA in irrigated cotton. Weed Sci. 19:545547.Google Scholar
3. Baker, R.S., Arle, H.F., Miller, J.H., and Holston, J.T. Jr. 1969. Effect of organic arsenical herbicides on cotton response and chemical residues. Weed Sci. 17:3740.Google Scholar
4. Gossett, B.J. and Starnes, J. 1972. Response of cotton to topical applications of herbicides. Proc. S. Weed Sci. Soc. 25:147 (Abstr.).Google Scholar
5. Hamilton, K.C. and Arle, H.F. 1970. Directed applications of herbicides in irrigated cotton. Weed Sci. 18:8588.Google Scholar
6. Havelka, V.D. and Merkle, M.G. 1969. Arsenic residues in cotton and johnsongrass. Proc. S. Weed Sci. Soc. 22:5157.Google Scholar
7. Hogue, C.W. 1974. Response of cotton and weeds to herbicides with phytobland oil or surfactant. Weed Sci. 22:97101.Google Scholar
8. Keeley, P.E. and Thullen, R.J. 1971. Cotton response to temperature and organic arsenicals. Weed Sci. 19:297300.Google Scholar