Doença da sigatoka negra
dies. In cases of severe infection leaves may die within a few weeks. Because of the lack of leaf tissues, fruit maturity is hampered. Life cycle and appearance [...] leaf-spot of banana. Damage symptoms Black sigatoka (Mycosphaerella fijiensis ) first causes small, light yellow spots or streaks on leaves of about one [...] adjacent stomata. Both types of spores can germinate within two or three hours under humid conditions, but infection takes a minimum of two or three days under