APSnet featured image - Symptoms of green mold on citrus.

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Symptoms of green mold on citrus. Note the presence of many conidia on the peel of a healthy orange fruit.

Fabrício Ávila Rodrigues and Francisco Xavier Ribeiro do Vale
Viçosa Federal University, Department of Plant Pathology
Email: fabricio@ufv.br

Host: Citrus (Citrus spp.)
Disease name: Green mold
Pathogen name: Penicillium digitatum (Pers.:Fr.) Sacc.

Green mold is the most important post-harvest diseases on citrus. This disease is ubiquitous to all citrus growing regions in Brazil. Conidia of the fungus are airborne and large numbers are produced by the fungus on the surface of infected fruit. The fungus is able to enter the fruit through wounds. Therefore, the disease can occur on fruit on the tree, in the packinghouse, in transit, in storage and in the marketplace. A white mold is first seen growing on the peel. The mold later turns green because of the large number of green spores produced. Decayed fruit becomes soft and shrinks.

APS publication number: IW000067

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