Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-26T10:13:24.172Z Has data issue: false hasContentIssue false
  • English
  • Français

Photodecomposition of Eleven Dinitroaniline Herbicides

Published online by Cambridge University Press:  12 June 2017

J. V. Parochetti  and
G. W. Dec Jr.
J. V. Parochetti
Affiliation:
Dep. Agron., University of Maryland, College Park, MD 20742
G. W. Dec Jr.
Affiliation:
University of Maryland, College Park, MD 20742
Get access Rights & Permissions [Opens in a new window]

Abstract

Decomposition of 11 dinitroaniline herbicides was determined following 7 days exposure to unfiltered solar radiation in July and compared with that in the dark. Radiolabeled herbicides were applied at 1 kg/ha to dry soil thin layer plates. Decomposition of all dinitroanilines was higher when exposed to sunlight than if held in the dark under otherwise similar conditions. Thermal decomposition was noted for all dinitroanilines except profluralin [N-(cyclopropylmethyl)-α,α,α-trifluoro-2,6-dinitro-N-propyl-p-toluidine] and dinitramine (N4,N4-diethyl-α,α,α-trifluoro-3,5-dinitrotoluene-2,4-diamine). Photodecomposition for each herbicide was: 7.8% AC 92390 [N-(1-ethylpropyl)-2,6-dinitro-3,4-dinitro-3,4-xylidine], 8.2% isopropalin (2,6-dinitro-N,N-dipropylcumidine), 9.0% butralin [4-(1,1-dimethylethyl)-N-(1-methylpropyl)-2,6-dinitrobenzenamine], 9.9% pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine], 17.1% benefin (N-butyl-N-ethyl-α,α,α-trifluoro-2,6-dinitro-p-toluidine), 18.4% trifluralin (α,α,α-trifluoro-2,6-dinitro-N-N-dipropyl-p-toluidine), 26.6% oryzalin (3,5-dinitro-N4,N4-dipropylsulfanilamide), 30.4% fluchoralin [N-(2-chloroethyl)-2,6-dinitro-N-propyl-4-(trifluoromethyl)aniline], 40.6% nitralin [4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline], 47.6% profluralin, and 72.3% dinitramine.

Type
Research Article
Information
Weed Science , Volume 26 , Issue 2 , March 1978 , pp. 153 - 156
Copyright
Copyright © 1978 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. Bardsley, C. E., Savage, K. E., and Walker, J. C. 1968. Trifluralin behavior in soils II. Volatilization as influenced by concentration, time, soil moisture content, and placement. Agron. J. 60:89–92.CrossRefGoogle Scholar
2. Barrentine, W. L. and Warren, G. F. 1971. Differential phototoxicity of trifluralin and nitralin. Weed Sci. 19:31–37.CrossRefGoogle Scholar
3. Helling, C. S. and Turner, B. C. 1968. Pesticide mobility: Determination by soil thin layer chromatography. Science 162:562–563.Google Scholar
4. Jackson, M. L. 1958. Soil Chemical Analysis. Prentice-Hall, Inc. Engelwood Cliffs, NJ. 498 pp.Google Scholar
5. Ketchersid, M. L., Bovey, R. W., and Merkle, M. G. 1969. The detection of trifluralin vapors in air. Weed Sci. 17:484–485.Google Scholar
6. Parochetti, J. V. and Hein, E. R. 1973. Volatility and photodecomposition of trifluralin, benefin, and nitralin. Weed Sci. 21:469–473.CrossRefGoogle Scholar
7. Parochetti, J. V., Dec, G. W. Jr., and Burt, G. W. 1975. Volatility of 11 dinitroaniline herbicides. Weed Sci. 24:529–532.CrossRefGoogle Scholar
8. Soderquist, C. J., Crosby, D. G., Moilanen, K. W., Seiber, J. N., and Woodrow, J. E. 1975. Occurrence of trifluralin and its photoproducts in air. J. Agric. Food Chem. 23:304–309.CrossRefGoogle ScholarPubMed
9. Wright, W. L. and Warren, G. F. 1965. Photochemical decomposition of trifluralin. Weeds 13:329–331.Google Scholar