C. Estevez de Jensen; T.G. Porch; J.S. Beaver; A. Chicapa Dovala; L. Baptista
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A poster presented at the 2012 Global Pulse Researchers Meeting, Kigali, Rwanda- “Transforming Grain-Legume Systems to Enhance Nutrition and Livelihoods”. Abstract: A survey of common bean (Phaseolus vulgaris L.) diseases was conducted during visits to Huambo, Cela and Malange, Angola. Angular leaf spot caused by Phaeoisariopsis griseola was the most prevalent bean disease. Ascochyta leaf spot (Phoma exigua) was common in the disease monitoring nurseries and in growers’ fields. A lower incidence of anthracnose (Colletotrichum lidemuthianum) and rust (Uromyces appendiculatus) was also observed. Root rots, caused by Rhizoctonia solani, were predominant in Malange under moisture stress. Pythium myriotylum, producing damping-off, was identified in a farmer’s field; this is the first report of this pathogen for common beans in Angola. A high incidence of common bacterial blight (Xanthomonas axonopodis pv. phaseoli) was found in a seed multiplication field. BCMV and BCMNV were identified using serological methods.