Ailanthus altissima is a medium-sized tree that reaches heights between 17 and 27 m with a diameter at breast height of about 1 m. Keratinophilic fungi are of wide spread occurrence in nature and in soil they colonize various keratinic substances present as animal remains and thus add to the nitrogen content of the soil. They are mainly saprophytic and potentially pathogenic to humans and other animals.

In this study the plant Ailanthus altissima was tested for its antimicrobial activities against some keratinophilic fungi in-vitro. These fungi were isolated from solid waste pollutant areas. Leaf extract of Ailanthus altissima was tested against Trichophyton. Mentagrophytes Geotrichum candidum, Chrysosporium indicum, Malbranchea aurantiaca, Chrysosporium keratinophilum and Chrysosporium tropicum using weight loss method and Food Poisoning technique.

Maximum percent inhibition in dry mycelial weight was observed in T. mentagrophytes followed by G.candidum (64.17) > C.indicum (61.82) > M.aurantiaca (60.98) > C.keratinophilum (54.92) > C.tropicum (53.57).

In Radial growth Trichophyton         showed maximum inhibition of 71.16% followed by Geotricum candidum (61.19%) > C.keratinophilum (60.71%) > C.tropicum (59.73%) > Chrysosporium indicum (59.49%) > Malbranchea aurantiaca (51.63%).