Cladosporium sphaerospermum has a worldwide distribution. It is a leaf mould (phylloplane) commonly isolated from air, soil, foodstuffs, paint and textiles. It is also very common on wet building material such as gypsum board, acrylic and soil painted walls, painted wood, and wallpaper; carpet and mattress dust; HVAC fans, and wet insulation in mechanical cooling units.

Cladosporium sphaerospermum is allergenic, i.e., its spores can elicit allergic reactions to susceptible individuals. In the medical literature, Cladosporium sphaerospermum has been implicated as the cause of human corneal ulcer, skin lesions and infection of nails.

Do you have a mould problem? Please call (905)290-9101.

Cladosporium herbarum is the most abundant mould in air. It shows marked seasonal variability in counts with a maximum in summer and a minimum in winter. Highest counts may be obtained in the late morning depending on the enviromental conditions. While Cladosporium herbarum is not pathogenic it’s an important source of allergens for mold-allergic individuals. People get exposed to mold when they inhale dried mycelia in house dust or they inhale spores from outdoor or indoor sources. Spores of Cladosporium herbarium are common in both indoor and outdoor air especially in summer.

Cladosporium herbarum is very common on dead plants, textiles, rubber, paper, foodstuffs and air. Its spores are often by far the most significant in air samples paricularly in summer. It has also been reported as a cause of meat spoilage in cold storage.

In indoor environment, Cladosporium herbarum has been reported in floor, carpet and mattress dust; damp acrylic painted walls, wallpaper; HVAC insulation, filters and fans.

Do you have a question regarding Cladosporium herbarum or any other mould? Call us at (905)290-9101.

Species of Trichoderma are very common in soil and cellulolytic materials including decaying wood, wood products, textiles, stored cereals and plant foodstuffs. Many species are strongly cellulolytic (i.e., they are capable of degrading cellulose since they produce large quantities of the enzyme cellulase). For this reason, they are important spoilage organisms and also cause post-harvest rots of various fruits and vegetables. They are also important producers of antibiotics and they have been researched extensively for biological control, especially of wood-rotting fungi.

In indoor environment, Trichoderma spp are commonly found on gypsum board and water saturated wood, wallpaper, carpet and mattress dust, paint, and air-conditioning filters. Human infection by species of Trichoderma is limited to individuals with severely weakened immune system. However, some species such as Trichoderma harzianum and Trichoderma viride are producers of potent mycotoxins.

Do you have a mould question? Call us at (905)290-9101.