Response of elite carioca cultivars of common bean recommended in Brazil to anthracnose and angular leaf spot

Abstract

Anthracnose (Colletotrichum lindemuthianum) and angular leaf spot (Pseudocercospora griseola) are among the most important diseases of common bean, causing considerable economic losses and increasing production costs. The use of resistant cultivars is the most effective and economically viable strategy to control these diseases. Brazilian breeding programs have made efforts in the development of cultivars resistant to the main races of C. lindemuthianum and P. griseola. The reaction of cultivars to these pathogens is assessed by the disease response in experiments with artificial inoculation of the pathogen in seedlings at stage V2. Thus, the objective of study was to assess the reaction of elite carioca cultivars of common bean to races 65, 73, 81 and 89 of C. lindemuthianum and to races 63-23 and 63-63 of P. griseola.