Angular leaf spot (ALS) caused by the fungus Phaeoisariopsis griseola (Sacc.) Ferraris, attacks the common bean (Phaseolus vulgaris L.) in Brazil and in other bean growing regions of the world. We started a recurrent selection bean breeding program tocreate superior varieties with "carioca-type" grains adapted to Brazil. One of the goals of this program is to pyramid disease resistance genes into these lines in order to obtain durable resistance to several pathogens, including P. griseola. As a natural step of the program we evaluated the resistance/susceptibility of 32 "carioca-type" elite lines to seven different pathotypes of P. griseola collected in Brazil (Nietsche et al. 2001). Twelve seeds of each line were sown in the greenhouse and testedwith each of the seven pathotypes. The plants were inoculated with suspensions of P. griseola (2 X 10~4 spores/mL) and incubated for two days in a mist chamber (20°C ± 1 and relative humidity > 95%). Twenty-one days after inoculation the plants were scored visually for the disease symptoms using a 1-9 scale (van Schoonhoven & Pastor-Corrales, 1987). Plants with grades 1 to 3 were considered resistant and with grades 4 to 9, susceptible.
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