Hostname: page-component-6898cfcb55-zkb6p Total loading time: 0 Render date: 2026-11-11T19:26:34.160Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Ultraviolet Light on Herbicides

Published online by Cambridge University Press:  12 June 2017

L. S. Jordan,
J. D. Mann and
B. E. Day
L. S. Jordan
Affiliation:
Department of Horticultural Science, University of California, Riverside, California
J. D. Mann
Affiliation:
Department of Horticultural Science, University of California, Riverside, California
B. E. Day
Affiliation:
Department of Horticultural Science, University of California, Riverside, California
Get access

Abstract

Recrystallized 3-(p-chlorophenyl)-1,1-dimethylurea (monuron), 3-(3,4-dichlorophenyl)-1,1-dimethylurea (diuron), 3-phenyl-1,1-dimethyl-urea (fenuron), 1-n-butyl-3-(3,4-dichlorophenyl)-1-methylurea (neburon), 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine), 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine), 5-bromo-3-isopropyl-6-methyluracil (isocil), and 5-bromo-3-sec-butyl-6-methyluracil (bromacil) were deposited in thin layers on aluminum planchets, irradiated with far, middle, and near ultraviolet light and collected in ethanol. Spectral changes in the ultraviolet region and losses were determined spectrophotometrically. The greatest changes and losses occurred with far ultraviolet and the least with near ultraviolet irradiation. Little or no spectral changes occurred in the dark, but there was some loss of each herbicide.

Information

Type
Research Article
Information
Weeds , Volume 13 , Issue 1 , January 1965, pp. 43 - 46
Copyright
Copyright © 1965 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.)

Article purchase

Temporarily unavailable

References

Literature Cited

1. Dewey, R. 1960. Further experimental evidence of the fate of simazine in the soil. Proc. British Weed Control Conference 5:91–97.Google Scholar
2. Jordan, L. S., Coggins, C. W., Day, B. E., and Clerx, W. A. 1964. Photodecomposition of substituted phenylureas. Weeds 12:1–4.Google Scholar
3. Jordan, L. S., Day, B. E., and Clerx, W. A. 1964. Photodecomposition of triazines. Weeds 12:5–6.Google Scholar
4. Sheets, T. J. 1963. Photochemical alteration and inactivation of amiben. Weeds 11:186–190.Google Scholar
5. Weldon, L. W. and Timmons, F. L. 1961. Photochemical degradation of diuron and monuron. Weeds 9:111–116.Google Scholar