Cladosporium cladosporioides is a darkly pigmented mold that occurs world-wide on a wide range of materials both outdoors and indoors.

This species produces asexual spores in delicate, branched chains that break apart readily and drift in the air.

[6] On a malt extract agar (MEA) medium, colonies are olive-grey to olive or whitish due to the mycelia growing upwards, and seem velvety to tufted with olive-black or olive-brown edges.

[6] Cladosporium cladosporioides has sparse, unbranched or rarely branched, darkly-pigmented hyphae that are typically not constricted at the septa.

[7][8] Cladosporium cladosporioides produces brown to olive-brown coloured, solitary conidiophores that branch irregularly, forming many ramifications.

[12][13] Cladosporium cladosporioides is a common saprotroph occurring as a secondary infection on decaying, or necrotic, parts of plants.

[19][20] This delay is required in order for the phenolic compounds in the grapes to ripen and contribute to the aroma and flavour development in wine of optimum quality.

[19] Symptoms of Cladosporium rot are typically observed on mature grapes and are characterized by dehydration, a small area of decay that is firm, and a layer of olive-green mould.

[17] The only recommendation made to avoid severe Cladosporium infections of grape clusters is to limit periods of continuous exposure to sunlight.

[24] From 1997-2000, there was a higher proportion of misshapen fruits due to C. cladosporioides infection, and their culling affected the strawberry industry in California.

[24] Infection leads to necrosis of the entire flower, or parts of it, as well as to the production of small and misshapen fruits and green-grey sporulation on the stigma.

[29] In mice, living C. cladosporioides spores have induced hyperresponsiveness of the lungs, as well as an increase in eosinophils, which are white blood cells typically associated with asthmatic and allergic reactions.

[30] A case of mycotic encephalitis and nephritis due to C. cladosporioides has been described in a dog, resulting in altered behaviour, depression, abnormal reflexes in all 4 limbs and loss of vision.