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Enhanced Biodegradation of Herbicides in Soil and Effects on Weed Control

Published online by Cambridge University Press:  12 June 2017

R. Gordon Harvey
Affiliation:
Dep. Agron., Univ. Wis., Madison, WI 53706
J. H. Dekker
Affiliation:
Dep. Plant Path., Seed Weed Sci., Iowa State Univ., Ames, IA 50011
Richard S. Fawcett
Affiliation:
Dep. Plant Path., Seed Weed Sci., Iowa State Univ., Ames, IA 50011
Fred W. Roeth
Affiliation:
Dep. Agron., Univ. Nebr., Clay Center, NE 68933, Scottsbluff, NE 69361
Robert G. Wilson
Affiliation:
Dep. Agron., Univ. Nebr., Clay Center, NE 68933, Scottsbluff, NE 69361

Abstract

Research conducted since 1979 in the north central United States and southern Canada demonstrated that after repeated annual applications of the same thiocarbamate herbicide to the same field, control of some difficult-to-control weed species was reduced. Laboratory studies of herbicide degradation in soils from these fields indicated that these performance failures were due to more rapid or “enhanced” biodegradation of the thiocarbamate herbicides after repeated use with a shorter period during which effective herbicide levels remained in the soils. Weeds such as wild proso millet [Panicum miliaceum L. spp. ruderale (Kitagawa) Tzevelev. #3 PANMI] and shattercane [Sorghum bicolor (L.) Moench. # SORVU] which germinate over long time periods were most likely to escape these herbicides after repeated use. Adding dietholate (O,O-diethyl O-phenyl phosphorothioate) to EPTC (S-ethyl dipropyl carbamothioate) reduced problems caused by enhanced EPTC biodegradation in soils treated previously with EPTC alone but not in soils previously treated with EPTC plus dietholate. While previous use of other thiocarbamate herbicides frequently enhanced biodegradation of EPTC or butylate [S-ethyl bis(2-methylpropyl)carbamothioate], previous use of other classes of herbicides or the insecticide carbofuran (2,3 -dihydro-2,2 -dimethyl-7-benzofuranyl methylcarbamate) did not. Enhanced biodegradation of herbicides other than the thiocarbamates was not observed.

Type
Symposium
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

Literature Cited

1. Audus, L. J. 1951. The biological detoxification of hormone herbicides in soil. Plant Soil. 3:170192.CrossRefGoogle Scholar
2. Bean, B. W., Roeth, F. W., Martin, A. R., and Wilson, R. G. 1984. Influence of herbicide history on degradation of thiocarbamates. Proc. North Cent. Weed Control Conf. 39:100101.Google Scholar
3. Bendixen, L. E. 1984. Enhanced biodegradation of EPTC used for johnsongrass control. Abstr. Weed Sci. Soc. Am., p. 2324.Google Scholar
4. Boldt, P. F., Christian, W., and Striegel, W. 1981. Wild proso millet control in sweet corn with thiocarbamate, acetanilide and dinitroaniline herbicides. Proc. North Cent. Weed Control Conf. 36:63.Google Scholar
5. Camacho, R., Moshier, L. J., and Rodebush, J. E. 1981. Comparison of thiocarbamate herbicides applied alone and in combination with fonofos or R-33865 for shattercane control in corn with EPTC history. Proc. North Cent. Weed Control Conf. 36:128129.Google Scholar
6. Doersch, R. E., and Harvey, R. G. 1979. Wild proso millet control in corn. Proc. North Cent. Weed Control Conf. 34:5859.Google Scholar
7. Drost, D. C. 1984. Continuous vs. rotational uses of EPTC + R-25788 + R-33865, butylate + R-33865 and cycloate + R-25788 herbicides for weed control in corn. Proc. North Cent. Weed Control Conf. 39:46.Google Scholar
8. Fawcett, R. S. 1980. Shattercane control. Iowa State Coop. Ext. Serv. Bull. EC1498b.Google Scholar
9. Felsot, A., Maddox, J. V., and Bruce, W. 1981. Enhanced microbial degradation of carbofuran in soils with histories of furadan use. Bull. Environ. Contam. Toxicol. 26:781.CrossRefGoogle ScholarPubMed
10. Grey, R. A. 1975. Thiocarbamate herbicides – their history, properties, and behavior in plants, animals, soils and microorganisms. Abstr. Weed Sci. Soc. Am., p. 145.Google Scholar
11. 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
12. Gunsolus, J. L., and Fawcett, R. S. 1981. Accelerated degradation of EPTC + R-25788 in fields of continuous EPTC + R-25788 use. Proc. North Cent. Weed Control Conf. 36:2425.Google Scholar
13. Hartberg, T. J., and Behm, J. A. 1980. Control of wild proso millet in field corn with pendimethalin. Proc. North Cent. Weed Control Conf. 35:72.Google Scholar
14. Harvey, R. G. 1980. The wild proso millet/Eradicane situation. Proc. Wis. Fert., Aglime, Pest Manage. Conf. 19:8588.Google Scholar
15. Harvey, R. G. 1982. Wild proso millet control in field and sweet corn. Proc. North Cent. Weed Control Conf. 37:2930.Google Scholar
16. Harvey, R. G. 1985. Accelerated herbicide degradation. Proc. Wis. Fert., Aglime, Pest Manage. Conf. 24:266270.Google Scholar
17. Harvey, R. G. 1985. Influence of prior herbicide use and chemical extenders on enhanced biodegradation of thiocarbamate hebicides. Proc. North Cent. Weed Control Conf. 40:1415.Google Scholar
18. Harvey, R. G., and Jansen, G. E. 1978. Influence of planting date and row spacing on wild proso millet control in field and sweet corn. Res. Rep. North Cent. Weed Control Conf. 35:262263.Google Scholar
19. Harvey, R. G., and Kozak, M. E. 1984. New observations on accelerated degradation of thiocarbamate herbicides. Proc. North Cent. Weed Control conf. 39:7879.Google Scholar
20. 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
21. Martin, A. R., and Roeth, F. W. 1978. Shattercane control in problem areas. Proc. North Cent. Weed Control Conf. 35:108109.Google Scholar
22. Martin, A. R., and Roeth, F. W. 1979. Field studies on shattercane control. Proc. North Cent. Weed Control Conf. 34:51.Google Scholar
23. McNevin, G. R., and Harvey, R. G. 1980. Comparison of thiocarbamate herbicides applied alone and in combination for wild proso millet control in corn. Proc. North Cent. Weed Control Conf. 35:16.Google Scholar
24. McNevin, G. R., and Harvey, R. G. 1980. Herbicide combinations for wild proso millet control in corn. Proc. North Cent. Weed Control Conf. 35:7172.Google Scholar
25. Menkveld, B., and Dekker, J. H. 1983. Accelerated breakdown of butylate+“ in soils with a history of its use. Proc. North Cent. Weed Control Conf. 38:46.Google Scholar
26. Obrigawitch, T., Martin, A. R., and Roeth, F. W. 1983. Degradation of thiocarbamate herbicides in soils exhibiting rapid EPTC breakdown. Weed Sci. 31:187192.CrossRefGoogle Scholar
27. Obrigawitch, T., Roeth, F. W., Martin, A. R., and Wilson, R. G. Jr. 1982. Addition of R-33865 to EPTC for extended herbicidal activity. Weed Sci. 30:422427.CrossRefGoogle Scholar
28. 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. 30:175181.CrossRefGoogle Scholar
29. Rahaman, A., and James, T. K. 1983. Decreasing activity of EPTC + R-25788 following repeated use in some New Zealand soils. Weed Sci. 31:783789.CrossRefGoogle Scholar
30. Rahaman, A., Atkinson, G. C., and Douglas, J. A. 1979. Eradicane causes problems. N. Z. J. Agric. 139(39):4749.Google Scholar
31. Reynolds, D. A., and Dexter, A. R. 1984. Thiocarbamate conditioning in North Dakota. Proc. North Cent. Weed Control Conf. 39:8384.Google Scholar
32. Roeth, F. W., and Martin, A. R. 1979. Shattercane control –greenhouse studies. Proc. North Cent. Weed Control Conf. 34:51.Google Scholar
33. Rudyanski, W. J., and Fawcett, R. S. 1984. Thiocarbamate herbicide persistence in soil with prior exposure to insecticides or thiocarbamate herbicides. Proc. North Cent. Weed Control Conf. 39:100.Google Scholar
34. Schuman, D. B., and Harvey, R. G. 1980. Predisposition of soils for rapid thiocarbamate herbicide breakdown. Proc. North Cent. Weed Control Conf. 35:1920.Google Scholar
35. Schuman, D. B., and Harvey, R. G. 1981. Accelerated degradation of thiocarbamate herbicides on an EPTC predisposed soil. Proc. North Cent. Weed Control Conf. 36:121.Google Scholar
36. Tuxhorn, G. L., Roeth, F. W., and Martin, A. R. 1983. Butylate persistence in soils with butylate history. Proc. North Cent. Weed Control Conf. 38:38.Google Scholar
37. Waldron, A. C., and Park, E. L. 1981. Pesticide use in major crops in the North Central Region in 1978. Ohio Agric. Res. Dev. Cent. Res. Bull. 1132.Google Scholar
38. Warnes, D. D., and Behrens, R. 1982. Reduced weed control from repeated annual applications of EPTC+ and EPTC+ + R-33865. Proc. North Cent. Weed Control Conf. 37:59.Google Scholar
39. Warnes, D. D., and Lofgren, J. A. 1981. A search for herbicide effects on rootworm control in corn with carbamate and phosphate insecticides. Proc. North Cent. Weed Control Conf. 36:128.Google Scholar
40. Wilson, R. G. 1982. Soil persistence of various thiocarbamate herbicides with and without R-33865 after repeated use. Proc. North Cent. Weed Control Conf. 37:4546.Google Scholar
41. Wilson, R. G. 1984. Accelerated degradation of thiocarbamate herbicides in soil with prior thiocarbamate herbicide exposure. Weed Sci. 32:264268.CrossRefGoogle Scholar
42. Wilson, R. G., Martin, A. R., and Roeth, F. W. 1980. Soil persistence of EPTC with and without a microbial inhibitor. Proc. North Cent. Weed Control Conf. 35:77.Google Scholar