Photo 1. Brown spot of tobacco. In this instance, the cause is given as Alternaria alternata. Pale brown spots, with darker margins and yellow halos.
Tobacco brown spot
Alternaria longipes. Note, that some accounts give the name of brown spot on tobacco as Alternaria alternata.
AUTHORS Grahame Jackson & Eric McKenzie
1Dingley JM et al. (1981) Survey of agricultural pests and diseases. Technical Report. Volume 2. Records of fungi, bacteria, algae and angiosperms pathogenic on plants in Cook Islands, Fiji, Kiribati, Niue, Tonga, Tuvalu and Western Samoa. FAO, Rome, Italy; and Information from Brown spot (Alternaria longipes) Plantwise Knowledge Bank. (http://www.plantwise.org/KnowledgeBank/Datasheet.aspx?dsid=4514). Photo 1&2 R.J. Reynolds Tobacco Company Slide Set, R.J. Reynolds Tobacco Company, Bugwood.org.
Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.
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