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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 

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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