Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-30T20:00:26.615Z Has data issue: false hasContentIssue false
  • English
  • Français

Interactions of Oxadiazon and Dinoseb with Stem Rot in Peanuts

Published online by Cambridge University Press:  12 June 2017

P.A. Backman ,
R. Rodriguez-Kabana  and
G.A. Buchanan
P.A. Backman
Affiliation:
Dep. Bot. and Microbiol., Auburn Univ. Agric. Exp. Stn., Auburn, AL 36830
R. Rodriguez-Kabana
Affiliation:
Dep. Bot. and Microbiol., Auburn Univ. Agric. Exp. Stn., Auburn, AL 36830
G.A. Buchanan
Affiliation:
Dep. Agron., Auburn Univ. Agric. Exp. Stn., Auburn, AL 36830
Get access Rights & Permissions [Opens in a new window]

Abstract

Oxadiazon [2-tert-butyl-4-(2,4-dichloro-5-isopropoxyphenyl)-δ2-1,3,4-oxadiazolin-5-one] significantly reduced the incidence of stem rot caused by the soil-borne pathogen Sclerotium rolfsii L. in field-grown peanuts (Arachis hypogaea L. ‘Florunner’). Dinoseb (2-sec-butyl-4,6-dinitrophenol) (1.7 kg/ha) used alone also reduced stem rot, but when combined with oxadiazon control was not significantly improved, although yields were significantly increased. Dinoseb was toxic to S. rolfsii in laboratory tests, suggesting that disease reductions and yield increases are attributable to this observation. Oxadiazon was non-toxic to the pathogen, indicating that disease control must be indirect, perhaps relating to the reduced plant spreading observed in treated plots. The reduction in ground contact is thought to reduce the probability of contacting pathogen inoculum. The potential value of oxadiazon in an integrated pest management system appears to be good because of simultaneous weed and disease control as well as frequent yield increases. This potential may be improved by use of dinoseb in the same program. Disease control is apparently an expression of the direct toxicity of dinoseb and the indirect effects of oxadiazon.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 3 , May 1977 , pp. 260 - 263
Copyright
Copyright © 1977 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. Backman, P.A., Rodriguez-Kabana, R., and Buchanan, G. 1974. Interactions of herbicides with Sclerotium rolfsii in runner peanuts. Proc. Am. Phytopathol. Soc. 1:70.Google Scholar
2. Backman, P.A., Rodriguez-Kabana, R., and Williams, J.C. 1975. The effect of peanut leafspot fungicides on the non-target pathogen, Sclerotium rolfsii . Phytopathology 65:773–776.CrossRefGoogle Scholar
3. Buchanan, G.A., Backman, P.A., and Rodriguez-Kabana, R. 1976. Influence of oxadiazon on peanuts, sicklepod and Florida Beggarweed. Abstr. J. Am. Peanut Res. Ed. Assoc. 7:88.Google Scholar
4. Chappel, W.E. and Miller, L.I. 1956. The effect of certain herbicides on plant pathogens. Plant Dis. Rep. 40:52–56.Google Scholar
5. Garren, K.H. 1959. The stem rot of peanuts and its control. Virginia Agric. Exp. Stn. Tech. Bull. 144. 137 pp.Google Scholar
6. Garren, K.H. and Duke, G.B. 1957. The peanut stem rot problem and a preliminary report on interrelations of “non-dirting” weed control and other practices to stem rot and yield of peanuts. Plant Dis. Rep. 41:424–431.Google Scholar
7. Jackson, C.R. and Bell, D.K. 1969. Diseases of peanut (Ground-nut) caused by fungi. Res. Bull. 56. Univ. GA., Athens. 137 pp.Google Scholar
8. Katan, J. and Eshel, Y. 1973. Interactions between herbicides and plant pathogens. Residue Rev. 45:145–177.Google Scholar
9. Rodriguez-Kabana, R. and Backman, P.A. 1976. Antifungal activity of the nematicide ethoprop. Plant Dis. Rep. 60:255–259.Google Scholar
10. Rodriguez-Kabana, R., Backman, P.A., Carr, G.W. Jr., and King, Peggy S. 1976. Effects of the nematicide fensulfothion on soil-borne pathogens. Plant Dis. Rep. 60:521–524.Google Scholar
11. Rodriguez-Kabana, R., Backman, P.A., and Curl, E.A. 1977. Control of seed and soil-borne plant diseases. in Antifungal compounds I. (Siegel, M.R. and Sisler, H.D., eds.) Marcel-Dekker, New York (In Press).Google Scholar
12. Rodriguez-Kabana, R., Backman, P.A., and McLeod, C. 1975. A soil plate method for rapid screening of pesticides against Sclerotium rolfsii . Plant Dis. Rep. 59:439–442.Google Scholar
13. Rodriguez-Kabana, R., Backman, P.A., and Williams, J.C. 1975. Determination of yield losses to Sclerotium rolfsii in peanut fields. Plant Dis. Rep. 59:855–858.Google Scholar
14. Steele, R.G.D. and Torrie, J.H. 1960. Principles and Procedures of Statistics. McGraw-Hill Book Co., N.Y. 481 pp.Google Scholar