Fruit rot disease of sugar apple (Annona squamosa L.) caused by Lesiodiplodia theobromae. The exophytic fungus found on leaves, fruits and twigs is Aspergillus sp. A. niger, Fusarium sp., Mycelia sterillia, Neurospora sp., and Rhizopus sp. whereas in the endophytes of the leaves, fruits and twigs are Fusarium sp., Penicillium sp., Neurosporas sp., and Mycelia sterillia. The diversity and dominance index of the exophistic fungi are 2,3742 and 0.8667, while the diversity and dominance index of endophytic fungi is 2.6356 and 0.6489. Ability inhibitory of antagonistic against Lesiodiplodia theobromae in vitro, from exophthalic and endophytic fungi ranged from 65.68 ± 0.82% to 88.35 ± 0.46%. The highest was obtained from Aspergillus sp. fungi of 88.35 ± 0.46% and lowest by Aspergillus sp. of 65.68 ± 0.82%. The results of in vivo inhibitory tests exophytic and endophytic fungus against the Lesiodiplodia theobromae highest obtained from Aspergillus sp. and A. niger fungi each pressed by 100%.

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