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Decreased Activity of EPTC + R-25788 Following Repeated use in Some New Zealand Soils

Published online by Cambridge University Press:  12 June 2017

Anis Rahman  and
Trevor K. James
Anis Rahman
Affiliation:
Weed Res. Sec., Ruakura Soil and Plant Res. Stn., Private Bag, Hamilton, New Zealand
Trevor K. James
Affiliation:
Weed Res. Sec., Ruakura Soil and Plant Res. Stn., Private Bag, Hamilton, New Zealand
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Abstract

Greenhouse and laboratory experiments showed that the biological activity of EPTC (S-ethyl dipropylthiocarbamate) + R-25788 (N,N-diallyl-2,2-dichloroacetamide) was lost more rapidly in soils if they had been previously treated with this herbicide. Treatments which reduced or eliminated the microbial activity in the soil restored the herbicide activity in ‘problem’ soils. A combination of 2 kg/ha of the insecticide fensulfothion (diethyl-4-methylsulphinyl phenyl phosphorothionate) with EPTC + R-25788 also restored the biological activity of the herbicide. Field trials confirmed the decreased biological activity with repeated use of EPTC + R-25788; other herbicides recommended for grass weed control in corn (Zea mays L.) performed satisfactorily in these ‘problem’ soils. The performance of EPTC + R-25788 was improved by a rotation away from it for one season (using another herbicide) but the level of activity was still below that obtained in a soil treated with EPTC + R-25788 for the first time. A new formulation of EPTC + R-25788 containing a herbicide extender R-33865 (O,O-diethyl-O-phenyl phosphorothioate) was not affected by the enhanced microbiological breakdown and provided effective season-long weed control in the ‘problem’ soils.

Keywords

Thiocarbamatesmicrobiological degradationpersistenceZea maysherbicide extenders
Type
Research Article
Information
Weed Science , Volume 31 , Issue 6 , November 1983 , pp. 783 - 789
Copyright
Copyright © 1983 Weed Science Society of America 

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References

Literature Cited

1. Abivardi, C. and Altman, J. 1978. Effect of cycloate and aldicarb alone and in combination on growth of three sugarbeet species (Beta spp.). Weed Sci. 30:161–162.Google Scholar
2. Audus, L. J. 1951. The biological detoxification of hormone herbicides in soil. Plant and Soil. 3:170–192.Google Scholar
3. Capper, B. E. 1982. Herbicide extenders: a new concept in weed control. Proc. N.Z. Weed and Pest Control Conf. 36:222–225.Google Scholar
4. Dexter, A. G. 1979. Use of extenders with EPTC and cycloate. Res. Rep., North Cent. Weed Control Conf. 36:156–157.Google Scholar
5. Fang, S. C., Theisen, P., and Freed, V. H. 1961. Effects of water evaporation, temperature and rates of application on the retention of EPTC in various soils. Weeds 9:569–574.Google Scholar
6. Faulkner, J. S. 1976. A paraquat resistant variety of Lolium perenne under field conditions. Proc. 1976 Br. Crop Prot. Conf.—Weeds. pp. 485–490.Google Scholar
7. Fryer, J. D. and Kirkland, K. 1970. Field experiments to investigate long-term effects of repeated applications of MCPA, triallate, simazine and linuron: report after six years. Weed Res. 10:133–158.Google Scholar
8. Gray, R. A. and Weierich, A. J. 1968. Behaviour and persistence of thiocarbamate herbicides in soils under different environmental conditions. Proc. 9th Br. Weed Control Conf. pp. 94–101.Google Scholar
9. Gunsolus, J. L. and Fawcett, R. S. 1980. Decreasing effectiveness of EPTC in continuous use fields: confirmation and possible chemical and cultural remedies. Proc. North Cent. Weed Control Conf. 35:18.Google Scholar
10. Harvey, R. G. 1980. The wild proso millet/Eradicane situation. Proc. 1980 Wis. Fert., Aglime and Pest Management Conf. 19:85–88.Google Scholar
11. Harvey, R. G. and Schuman, D. B. 1981. Accelerated degradation of thiocarbamate herbicides with repeated use. Abstr., Weed Sci. Soc. Am. p. 124.Google Scholar
12. Hurle, D. and Rademacher, B. 1970. The effect of long-term treatment with DNOC and 2,4-D on their breakdown in soil. Weed Res. 10:159–164.Google Scholar
13. Jensen, K.I.N., Bandeen, J. D., and Souza Machado, V. 1977. Studies on the differential tolerance of two lambs-quarters selections to triazine herbicides. Can. J. Plant Sci. 57:1169–1178.CrossRefGoogle Scholar
14. Kaufman, D. D. and Kearney, P. C. 1965. Microbial degradation of isopropyl-N-3-chlorophenylcarbamate and 2-chloroethyl-N-3-chlorophenylcarbamate. Appl. Microbiol. 13:443–446.Google Scholar
15. Kirkland, K. and Fryer, J. D. 1972. Degradation of several herbicides in a soil previously treated with MCPA. Weed Res. 12:90–95.Google Scholar
16. Obrigawitch, T., Roeth, F. W., Martin, A. R., and Wilson, R. G. Jr. 1982. Addition of R-33865 to EPTC for extended herbicide activity. Weed Sci. 30:417–422.Google Scholar
17. 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
18. Oliver, L. R. and Schreiber, M. M. 1971. Differential selectivity of herbicides on six Setaria taxa. Weed Sci. 19:428–431.CrossRefGoogle Scholar
19. Rahman, A. 1977. Persistence of terbacil and trifluralin under different soil and climatic conditions. Weed Res. 17:145–152.Google Scholar
20. Rahman, A., Atkinson, G. C., Douglas, J. A., and Sinclair, D. P. 1979. Eradicane causes problems. N.Z. J. Agric. 139(3):47–49.Google Scholar
21. Rahman, A., Burney, B., and James, T. K. 1981. Control of grass weeds in maize fields showing decreased activity of EPTC + R-25788. Proc. N.Z. Weed and Pest Control Conf. 34:176–181.Google Scholar
22. Roeth, F. W., Obrigawitch, T., and Martin, A. R. 1980. Shattercane control in corn, Clay County, NE, 1980. Res. Rep. North Cent. Weed Control Conf. 37:199–201.Google Scholar
23. Schuman, D. B. and Harvey, R. G. 1980. Predisposition of soils for rapid thiocarbamate herbicide breakdown. Proc. North Cent. Weed Control Conf. 35:19–20.Google Scholar
24. Warnes, D. D. and Behrens, R. 1981. Effectiveness of consecutive annual treatments of EPTC combinations for the control of wild proso millet (Panicum miliaceum L.) in corn. Abstr., Weed Sci. Soc. Am. p. 22–23.Google Scholar
25. Wedderburn, R. N., Jenkins, L. E., and Schweizer, E. E. 1973. Effects of combinations of liquid and granular formulations of disulfoton and cycloate on sugarbeets. Environ. Entomol. 2:915–917.Google Scholar