Abstract
A description is provided for Penicillium crustosum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Although primarily considered to be a weak pathogen of pomaceous fruits, the species is an ubiquitous spoilage organism, particularly in cereals and compound feedstuffs, and probably also on decaying vegetation in temperate climates (PITT & HOCKING, 1997). Penicillium crustosum has also been isolated from cheese, blueing powder for cheese, fruit juice, thyme, cassava, citrus, copper electroplating solution, PVA emulsion, poultry litter, soil and tobacco (CABI BIOSCIENCE, 1999). DISEASES: It is considered to be a weak pathogen of pomaceous fruits, particularly apples (SANDERSON & SPOTTS, 1995). GEOGRAPHIC DISTRIBUTION: World-wide, but more commonly isolated in temperate climates.