Insect dissemination of Xanthomonas Manihotis to cassava in the People's Republic of Congo
1981
Daniel, J.F. | Boher, B. | Nkouka, N. (Office de la Recherche Scientifique et Technique Outre-Mer, Brazzaville (Congo))
From four leaf-eating insect species, we detected the causal agent of cassava bacterial blight, Xanthomonas manihotis by immunofluorescence. The insects were Chrysolagria cuprina, Gonocephalum simplex, Ischnotrachelus sp., and Zonocerus variegatus. We found the pathogen in the feces and in the alimentary canal of C. cuprina, Ischnotrachelus sp., and Z. variegatus that had fed on infected cassava leaves of test plants. The presence during the rainy season of these viable pathogenic bacteria in the digestive system, feces, and occasionally on the exoskeleton of these insects suggests that they are disseminators of the cassava blight pathogen
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