Summary
Synergism between fungicides could be used to reduce the application dosage. Synergism between cymoxanil and mancozeb was studied using potted potato plants under field conditions. In three experiments the preventive efficacy of the fungicides and fungicide mixtures in the treatments were studied using a bio-assay. Potato plants were sprayed with the fungicides or fungicide mixtures. Leaves were picked from the potato plants with regular intervals after fungicide application. The efficacy of the fungicides was studied in a bioassay by inoculating the leaves withPhytophthora infestans zoosporangia. The Abbot method was used to show synergistic effects of the cymoxanil/mancozeb mixtures tested. In two of three experiments synergy of the fungicide mixtures was found.
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References
Bliss, C.I., 1939. The toxicity of poisons applied jointly.Annals of Applied Biology 26: 585–615.
Cohen, Y. & U. Gisi, 1993. Uptake, translocation and degradation of [14C]cymoxanil in tomato plants.Crop Protection 12: 284–292.
Gisi, U., 1991. Synergism between fungicides for control ofPhytophthora. In: J.A. Lucas, R.C. Shattock & D.S. Shaw (Eds), Phytophthora. Cambridge University Press, Cambridge, pp. 361–372.
Gisi, U., H. Binder & E. Rimbach, 1985. Synergistic interactions of fungicides with different modes of action.Transactions of the British Mycological Society 85: 299–306.
Kleier, D.A., 1994. Environmental effects of the photodegradation of pesticides. In: H.G. Hewitt, J. Casely, L.G. Copping, B.T. Grayson & D. Tyson (Eds), Comparing glasshouse and field pesticide performance II. Proceedings of an International Symposium held at the University of Kent, Canterbury on 12–14 April 1994, pp. 97–109.
Lindner, K., U. Burth, H. Stachewicz & V. Gutsche, 1994. Ermittlung der Wirkeigenschaften von Phytophthora-Fungiziden für die Epidemiesimulation.Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 46: 205–209.
Lindner, K., U. Burth, H. Stachewicz & V. Gutsche, 1995. Beurteilung von Wirkungskomponenten neuer Phytophthora-Fungiziden auf der Basis von Modelluntersuchungen.Nachrichtenblatt des Deutschen Pflanzenschutzdienstes 47: 297–303.
Neuhaus, W., H. Stachewicz & M. Dunsing, 1974. Über den Einfluß von Niederschlägen auf die biologische Wirkung von Fungiziden zur Phytophthora-Bekämpfung.Nachrichtenblatt für den Pflanzenschutz in der DDR 8: 149–153.
Samoucha, Y. & Y. Cohen, 1988. Synergistic interaction of cymoxanil mixtures in the control of metalaxyl-resistantPhytophthora infestans of potato.Phytopathology 78: 636–640.
Samoucha, Y. & Y. Cohen, 1989. Field control of potato late blight by synergistic fungicidal mixtures.Plant Disease 73: 751–753.
Samoucha, Y. & U. Gisi, 1986. Possible explanations of synergism in fungicide mixtures againstPhytophthora infestans.Annals of Applied Biology 110: 303–311.
Samoucha, Y., R.S. Levy & Y. Cohen, 1988. Efficacy over time of cymoxanil mixtures in controlling late blight in potatoes incited by a phenylamide-resistant isolate ofPhytophthora infestans.Crop Protection 7: 210–215.
Waard, M.A. de, 1987. Synergism and antagonism in fungicides. In: H. Lyr (Ed.), Modern selective fungicides. Gustav Fischer Verlag, Jena & Longman Group (UK) Ltd. London, pp. 355–365.
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Evenhuis, A., Schepers, H.T.A.M., Bus, C.B. et al. Synergy of cymoxanil and mancozeb when used to control potato late blight. Potato Res 39, 551–559 (1996). https://doi.org/10.1007/BF02358474
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DOI: https://doi.org/10.1007/BF02358474