Fruit rot is a common fungal disease of jackfruit flowers and
fruits especially in the high rainfall areas (Ghosh, 1994). In flowering
or fruiting seasons the disease can cause total loss of fruit in
jackfruit trees. Initially soft, brown spots develop on fruits as well
as on male flowers. Subsequently a powdery fuzzy looking mass of
black spores and white fungal mycelia covers the jackfruit surface.
The pathogen grew over the young fruits and results into the characteristics
black, rotten, shrunken and sometime mummified fruit
remains. Symptoms can appear on the tree or can develop on fruit
that are in storage and in transit. Scientists reported that the causal
organisms of the disease with such symptoms are mostly species of
Rhizopus artocarpi and other species of Rhizopus (Ghosh, 1994;
Nelson, 2005). They reported about 15–32% crop loss due to this
disease.
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