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Addition of R-33865 to EPTC for Extended Herbicide Activity

Published online by Cambridge University Press:  12 June 2017

Tim Obrigawitch ,
Fred W. Roeth ,
Alex R. Martin  and
Robert G. Wilson Jr.
Tim Obrigawitch
Affiliation:
Dep. Agron., Univ. of Nebraska, Lincoln, NE 68583
Fred W. Roeth
Affiliation:
South Central Stn., Univ. of Nebraska, Clay Center, NE 68933
Alex R. Martin
Affiliation:
Dep. Agron., Univ. of Nebraska, Lincoln, NE 68583
Robert G. Wilson Jr.
Affiliation:
Panhandle Stn., Univ. of Nebraska, Scottsbluff, NE 69361
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Abstract

Laboratory and field studies were conducted to examine the influence of R-33865 (O, O-diethyl-O-phenol phosphorothioate) on the degradation rate of EPTC (S-ethyl dipropylthiocarbamate) in three soils that had a history of repeated EPTC application and exhibited accelerated degradation of EPTC. In field studies, addition of R-33865 to EPTC extended EPTC persistence in soil and provided increased shattercane [Sorghum bicolor (L.) Moench] control. In two soils that exhibited rapid EPTC degradation, addition of R-33865 to EPTC extended the half-life of EPTC from 9 to 18 days and from 6 to 15 days, respectively. Evolution of 14CO2 from 14C-carbonyl EPTC-treated soils with a prior history of EPTC treatment was significantly reduced when R-33865 was added; however, the initial lag period of EPTC degradation was not restored. Addition of R-33865 to EPTC on soils with no prior EPTC treatment did not extend persistence of EPTC in soil.

Keywords

Sorghum bicolorextendermicrobial inhibitorsoil persistencebutylate
Type
Research Article
Information
Weed Science , Volume 30 , Issue 4 , July 1982 , pp. 417 - 422
Copyright
Copyright © 1982 by the Weed Science Society of America 

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References

Literature Cited

1. Audus, L. J. 1964. The Physiology and Biochemistry of Herbicides. Academic Press, New York. pp 165–175.Google Scholar
2. Danielson, L. L., Gentner, W. A., and Jansen, L. L. 1961. Persistence of soil-incorporated EPTC and other carbamates. Weed Sci. 9:463–476.Google Scholar
3. Dexter, A. B. 1979. Use of extenders with EPTC and cycloate. North Cent. Weed Control Conf. Res. Rep. 36:156.Google Scholar
4. Doersch, R. E. and Harvey, A. G. 1979. Wild proso millet control in corn. Proc. North Cent. Weed Control Conf. 34:58–59.Google Scholar
5. Gray, R. A. and Weierich, A. J. 1968. Behavior and persistence of thiocarbamate herbicides in soils under different environmental conditions. Proc. 9th Br. Weed Control Conf. pp 94–101.Google Scholar
6. Greaves, M. P., Davies, H. A., Marsh, J.A.P., and Wingfield, G. I. 1976. Herbicides and soil microorganisms. CRC Critical Rev. in Microbiol. 5:1–35.Google Scholar
7. Hamaker, J. W. 1972. Decomposition: Quantitative relationships. Pages 279–320 In Goring, C.A.J. and Hamaker, J. W., eds. Organic Chemicals in the Soil Environment. Marcel Dekker, Inc., New York.Google Scholar
8. Kaufman, D. D. 1967. Degradation of carbamate herbicides in soil. J. Agric. Food Chem. 15:582–591.Google Scholar
9. Kaufman, D.D., Blake, J., and Miller, D.E. 1971. Methylcarbamates affect acylanilide herbicide residues in soil. J. Agric. Food Chem. 19:204–206.Google Scholar
10. Kaufman, D. D. and Kearney, P. C. 1970. Microbial degradation of triazine herbicides. Residue Rev. 32:235–265.Google Scholar
11. Kaufman, D. D., Kearney, P. C., Von Endt, D. W., and Miller, D. E. 1970. Methylcarbamate inhibition of phenylcarbamate metabolism in soil. J. Agric. Food Chem. 18:513–519.Google Scholar
12. MacRae, I. C. and Alexander, M. 1965. Microbial degradation of selected herbicides in soil. J. Agric. Food Chem. 13:72–75.Google Scholar
13. Martin, A. R. and Roeth, F. W. 1979. Field studies in shattercane control. Proc. North Cent. Weed Control Conf. 34:51–52.Google Scholar
14. Obrigawitch, T., Wilson, R. G., Martin, A. R., and Roeth, F. W. 1982. The influence of temperature, moisture and prior EPTC application on the degradation of EPTC in soils. Weed Sci. 30:175–181.Google Scholar
15. Rahman, A., Atkinson, G. C., and Douglas, J. A. 1979. Eradicane causes problems. N. Z. J. Agric., 139:47–49.Google Scholar
16. Roeth, F. W. and Martin, A. R. 1979. Shattercane control — greenhouse studies. Proc. North Cent. Weed Control Conf. 34:51.Google Scholar
17. Roslycky, E. B. 1980. Fungicidal activity of vorlex and accumulation of linuron in a vorlex-linuron treated soil. Can. J. Soil Sci. 60:651–656.Google Scholar
18. Sheets, T. J. 1959. Effects of soil type and time on the herbicidal activity of CDAA, CDEC and EPTC. Weeds 7:442–448.CrossRefGoogle Scholar
19. Smith, A. E. and Fitzpatrick, A. 1970. The loss of five thiocarbamate herbicides in nonsterile soils and their stability in acidic and basic solutions. J. Agric. Food Chem. 18:720–722.Google Scholar
20. Torstensson, N.T.L., Stark, L., and Goransson, B. 1975. The effect of repeated applications of 2,4-D and MCPA on their breakdown in soil. Weed Res. 15:159–165.Google Scholar