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PERSIMMON ANTHRACNOSE CAUSED BY Colletotrichum horii: INCIDENCE IN BRANCHES, LEAVES, FLOWERS

The aim of this study was to evaluate the incidence in different parts of the plant and the development of anthracnose caused by Colletotrichum horii persimmon Fuyu and Kakimel cultivars produced under organic and conventional systems, respectively, on growing seasons in 2010/11 and 2011/12, in Campina Grande do Sul, State of Paraná, Brazil. In each orchard, 10 plants were randomly selected and 10 shoots of one year old spread around of the plant canopy were assessed by the incidence of anthracnose on shoots and leaves, every 15 days. It was quantified the fruit dropped with or without symptoms of the disease every 15 days during the growth period to the fruit harvest and compared to total yield. C. horii incidence was assessed in flowers in the field and after incubation in the laboratory. Latent infection was assessed in green fruit collected at 90, 120 and 150 days after flowering. In both seasons, there was fruit drop with anthracnose symptoms from January to April. C. horii is able to infect flowers, remain latent and cause symptoms of anthracnose on immature fruits. Harvest health fruit developed symptoms of the disease after postharvest incubation.

Diospyros kaki ; latent infection; postharvest; Colletotrichum spp.


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