Hostname: page-component-cd9895bd7-gbm5v Total loading time: 0 Render date: 2024-12-27T22:24:03.897Z Has data issue: false hasContentIssue false
  • English
  • Français

Duration of Enhanced Soil Degradation of EPTC as Influenced by Herbicide Rotation, Time, and Location

Published online by Cambridge University Press:  12 June 2017

Brent W. Bean ,
Fred W. Roeth ,
Alex R. Martin  and
Robert G. Wilson
Brent W. Bean
Affiliation:
Dep. Agron., Univ. Nebraska, Lincoln, 68583
Fred W. Roeth
Affiliation:
South Central Res. and Ext. Ctr., Clay Center, 68933
Alex R. Martin
Affiliation:
Dep. Agron., Lincoln, 68583
Robert G. Wilson
Affiliation:
Panhandle Res. and Ext. Ctr., Scottsbluff
Get access Rights & Permissions [Opens in a new window]

Abstract

Soils did not remain enhanced for EPTC degradation when EPTC was applied in a biennial rotation with cyanazine, cycloate, or alachlor as indicated by laboratory analysis and early-season weed control in the year of EPTC use. Control of late-season weeds was less when EPTC was rotated with alachlor than with a first-time use of EPTC. EPTC degradation remained enhanced in an EPTC-butylate rotation. The reversion rate of soil from an enhanced condition to normality was gradual and varied with location, year, and number of prior EPTC applications. At Clay Center and Scottsbluff, soils reverted to a nonenhanced EPTC degradation rate 18 months after initial EPTC application. At Scottsbluff, soil was not enhanced for EPTC degradation 18 months after the second of two annual EPTC applications. Soil from Clay Center was partially enhanced for EPTC degradation 18 months after the second of two annual EPTC applications but was not enhanced after 30 months.

Keywords

EPTC, S-ethyl dipropyl carbamothiatecyanazine, 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl] amino]-2-methylpropanenitrilecycloate, S-ethyl cyclohexylethylcarbamothioatealachlor, 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamidebutylate, S-ethylbis (2-methylpropyl)carbamothioateAccelerated degradationcarbamothioateherbicide enhancement
Type
Soil, Air, and Water
Information
Weed Science , Volume 36 , Issue 4 , July 1988 , pp. 524 - 530
Copyright
Copyright © 1988 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. Alexander, Martin. 1977. Introduction to soil microbiology. Page 22. John Wiley & Sons, New York.Google Scholar
2. Bean, B. W., Roeth, F. W., Martin, A. R., and Wilson, R. G. 1988. Influence of prior pesticide treatments on EPTC and butylate degradation. Weed Sci. 36:70–77.CrossRefGoogle Scholar
3. Gray, R. A. and Joo, G. K. 1985. Reduction in weed control after repeat applications of thiocarbamate and other herbicides. Weed Sci. 33:698–702.Google Scholar
4. Gunsolus, J. L. and Fawcett, R. S. 1982. Accelerated degradation of thiocarbamate herbicides in fields of continuous thiocarbamate use. Abstr. Weed Sci. Soc. Am. 22:105.Google Scholar
5. Menkveld, B. and Dekker, J. H. 1984. Accelerated breakdown of butylate+ in soils with a history of its use. Abstr. Weed Sci. Soc. Am. 24:99.Google Scholar
6. Menkveld, J. W. and Dekker, J. H. 1985. Soil acclimatization to butylate+ in Ontario: Comparison of degradation rates in history soils and adjacent fields. Abstr. Weed Sci. Soc. Am. 25:91.Google Scholar
7. 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
8. Obrigawitch, T., Martin, A. R., and Roeth, F. W. 1983. Degradation of thiocarbamate herbicides in soil exhibiting rapid EPTC breakdown. Weed Sci. 31:187–192.Google Scholar
9. Rahman, A. and James, T. K. 1983. Decrease of EPTC + R-25788 following repeated use in some New Zealand soils. Weed Sci. 31:783–789.CrossRefGoogle Scholar
10. Rudyanski, W. J., Fawcett, R. S., and McAllister, R. S. 1987. Effect of prior pesticide use on thiocarbamate herbicide persistence and giant foxtail (Setaria faberi) control. Weed Sci. 35:68–74.Google Scholar
11. Skipper, H. D., Gooden, D. T., Zublena, J. P., Amakiri, M. A., and Struble, J. E. 1985. Fate of butylate history and EPTC in butylate-history soils. Abstr. Weed Sci. Soc. Am. 25:91.Google Scholar
12. Roeth, F. W. 1986. Enhanced herbicide degradation with repeat application. Rev. Weed Sci. 2:45–65.Google Scholar
13. Wilson, R. G. 1984. Accelerated degradation of thiocarbamate herbicides with prior thiocarbamate herbicide expos Weed Sci. 32:264–268.Google Scholar