Photo 1. Leaves with angular spots caused by cassava bacterial blight, Xanthosoma axonopodis pv. manihotis, at first limited by the veins, later joining together to form large brown areas of decay, especially at the leaf tips.
Photo 2. Leaves wilting and falling down caused by cassava bacterial blight, Xanthosoma axonopodis pv. manihotis.
Cassava bacterial blight
Xanthomonas axonopodis pv. manihotis. Previously, it was known as Xanthomonas. campestris pv. manihotis, and in Palau is it recorded as Bacterium robici, a much older name.
AUTHOR Grahame Jackson
Information (and Photo 3) CABI (2013) Xanthomonas axonopodis pv. manihotis Crop Protection Compendium. (http://www.cabi.org.cpc).
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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