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Postemergence Control of Broadleaf Weeds in Tomato (Lycopersicon esculentum)

Published online by Cambridge University Press:  12 June 2017

Milton E. McGiffen Jr.
Affiliation:
Dep. Hortic., Univ. Ill., 1201 W. Gregory Dr., Urbana, IL 61801
John B. Masiunas
Affiliation:
Dep. Hortic., Univ. Ill., 1201 W. Gregory Dr., Urbana, IL 61801

Abstract

Greenhouse and field experiments were conducted to evaluate the control of eastern black nightshade and velvetleaf in tomato with bentazon, metribuzin, pyridate, and acifluorfen. Metribuzin controlled velvetleaf but not eastern black nightshade, whereas pyridate controlled eastern black nightshade but not velvetleaf. A combination of metribuzin + pyridate controlled both weeds, but caused tomato injury 4 wk after application. Bentazon neither controlled the weeds nor injured the crop. Acifluorfen controlled both eastern black nightshade and velvetleaf. Diammonium phosphate and oxysorbic (5 POE) improved bentazon and acifluorfen activity against velvetleaf. Although initial crop injury from some treatments applied prior to fruit initiation was severe, the crop recovered and there were no reductions in fruit weight compared with the control. However applying acifluorfen with oxysorbic (5 POE) during fruit development reduced yield 50%.

Type
Research
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Bewick, T. A., Stall, W. M., Kostewicz, S. R., and Smith, K. 1990. Control of Solanum americanum with paraquat impaired by some fungicide/bactericides. HortScience 25:14071408.CrossRefGoogle Scholar
2. Calvert, A. 1959. Effect of the early environment on the development of flowering in tomato. II. Light and temperature interactions. J. Hortic. Sci. 34:154162.CrossRefGoogle Scholar
3. Friesen, G. H. 1979. Weed interference in transplanted tomatoes (Lycopersicon esculentum). Weed Sci. 27:1113.CrossRefGoogle Scholar
4. Gawronski, S. W. 1983. Tolerance of tomato (Lycopersicon esculentum) cultivars to metribuzin. Weed Sci. 31:525527.Google Scholar
5. Gorski, S. F., and Wertz, M. K. 1987. Tomato (Lycopersicon esculentum) and eastern black nightshade (Solanum ptycanthum) tolerance to acifluorfen. Weed Technol. 1:278281.Google Scholar
6. Gomez, K. A., and Gomez, A. A. 1984. Statistical procedures for agricultural research. John Wiley and Sons, New York.Google Scholar
7. Harrison, H. F. Jr., and Fery, R. L. 1989. Assessment of bentazon tolerance in pepper (Capsicum sp.). Weed Technol. 3:307312.CrossRefGoogle Scholar
8. Harrison, S. K., Wax, L. M., and Bode, L. E. 1986. Influence of adjuvants and application variables on postemergence weed control with bentazon and sethoxydim. Weed Sci. 34:462466.Google Scholar
9. Lange, A. H., Fisher, B. B., and Ashton, F. M. 1986. Weed control. p. 485510 in: Atherton, J. G. and Rudich, J., ed. The Tomato Crop – The Scientific Basis for Improvement. Chapman and Hall, London.Google Scholar
10. Lee, S. D., and Oliver, L. R. 1982. Efficacy of acifluorfen on broadleaf weeds. Times and methods for application. Weed Sci. 30:520526.Google Scholar
11. Manley, W. T. 1983. United States standards for grades of tomatoes for processing. U.S.D.A. Agric. Marketing Serv., Washington, DC.Google Scholar
12. Masiunas, J. B. 1989. Tomato (Lycopersicon esculentum) tolerance to diphenyl ether herbicides applied postemergence. Weed Technol. 3:602607.Google Scholar
13. McGiffen, M. E. Jr. 1991. The environmental physiology of tomato (Lycopersicon esculentum Mill. cv. Heinz-6004) and black or eastern black nightshade (Solanum nigrum L. and S. ptycanthum Dun.) competition. Ph.D. Thesis, Dep. Hortic., Univ. Ill, Urbana, IL.Google Scholar
14. McGiffen, M. E. Jr., and Masiunas, J. B. 1989. Surfactants as enhancers of acifluorfen selectivity. North Cent. Weed Sci. Soc. Proc. 40:77.Google Scholar
15. Ogg, A. G. Jr. 1986. Variation in response of four nightshades (Solanum spp.) to herbicides. Weed Sci. 34:765772.CrossRefGoogle Scholar
16. Perez, F. G., and Masiunas, J. B. 1990. Eastern black nightshade (Solanum ptycanthum) interference in processing tomato (Lycopersicon esculentum). Weed Sci. 38:385388.CrossRefGoogle Scholar
17. Pritchard, M. K., and Warren, G. F. 1980. Effect of light on the response of tomato (Lycopersicon esculentum) and two weed species to metribuzin. Weed Sci. 28:186189.CrossRefGoogle Scholar
18. Ritter, R. L., and Coble, H. D. 1984. Influence of crop canopy, weed maturity, and rainfall on acifluorfen activity. Weed Sci. 32:185190.Google Scholar
19. Smith, A. E., Phatak, S. C., and Emmatty, D. A. 1989. Metribuzin metabolism by tomato cultivars with low, medium, and high levels of tolerance to metribuzin. Pest. Biochem. Physiol. 35:284290.Google Scholar
20. Sorensen, V. M., Meggitt, W. F., and Penner, D. 1987. The interaction of acifluorfen and bentazon in herbicidal combinations. Weed Sci. 35:449456.CrossRefGoogle Scholar
21. Souza Machado, V., and Ditto, C. 1982. Tomato chloroplast photochemical sensitivity to metribuzin. Sci. Hortic. 17:913.Google Scholar
22. Souza Machado, V., Phatak, S. C., and Nonnecke, I. L. 1982. Inheritance of tolerance of the tomato (Lycopersicon esculentum Mill) to metribuzin herbicide. Euphytica 31:129138.Google Scholar
23. Stephenson, G. R., McLeod, J. E., and Phatak, S. C. 1976. Differential tolerance of tomato cultivars to metribuzin. Weed Sci. 24:161165.Google Scholar
24. Stephenson, G. R., Phatak, S. C., Makowski, R. I., and Bouw, W. J. 1980. Phytotoxic interactions involving metribuzin and other pesticides in tomatoes. Can. J. Plant Sci. 60:167175.CrossRefGoogle Scholar
25. Teasdale, J. R. 1987. Selectivity of diphenyl ether herbicides between tomato (Lycopersicon esculentum) and eastern black nightshade (Solanum ptycanthum). Weed Technol. 1:165167.CrossRefGoogle Scholar
26. Turner, D. J., and Loader, M.P.C. 1984. Effect of ammonium sulfate and related salts on the phytotoxicity of dichlorprop and other herbicides used for broadleaf weed control in cereals. Weed Res. 24:6777.Google Scholar
27. Wanamarta, G., Penner, D., and Kells, J. J. 1989. Identification of efficacious adjuvants for sethoxydim and bentazon. Weed Technol. 3:6066.Google Scholar
28. Weaver, S. E., Smits, N., and Tan, C. S. 1987. Estimating yield losses of tomatoes (Lycopersicon esculentum) caused by nightshade (Solanum spp.) interference. Weed Sci. 35:163168.Google Scholar
29. Weaver, S. E., and Tan, C. S. 1983. Critical period of weed interference in transplanted tomatoes (Lycopersicon esculentum): growth analysis. Weed Sci. 31:476481.CrossRefGoogle Scholar
30. Willingham, G. L., Graham, L. L., and Westmoreland, D. G. 1989. The biological activity of acifluorfen-sodium and its relation to wetting, penetration and wax composition in four species. Pestic. Sci. 26:123132.Google Scholar
31. Wolff, D. W., Monaco, T. J., and Collins, W. W. 1989. Differential tolerance of pepper (Capsicum annuum) to bentazon. Weed Technol. 3:579583.Google Scholar