Madame Libert described Peziza sclerotiorum, later renamed to Sclerotinia libertiana. De Bary established proper name Sclerotinia sclerotiorum in 1884. Fungus has multiple species including S. trifoliorum, S. minor, S. serica. Taxonomy based on sclerotia size, host association, and mycelial characteristics
Fungal disease causing white-gray powder on plant leaves. Host-specific fungal infections affect only specific plant varieties. Thrives in warm, dry climates with temperatures 70-80 degrees
Powdery mildew is a fungal disease affecting various plants. Infected plants show white powdery spots on leaves and stems. Disease spreads quickly, especially affecting lower leaves. Thrives in high humidity and moderate temperatures
Rust fungi are plant pathogens belonging to the order Pucciniales. Approximately 7,000 species exist, with over half belonging to genus Puccinia. Each species can infect only two different plant hosts. Rust fungi cannot be easily grown in pure culture
Fungi are the most common plant pathogens causing serious vegetable diseases. Most vegetable diseases are caused by fungi. Fungi enter plants through natural openings and wounds. Diseases spread through wind, water splash, contaminated soil and machinery
Blue mold is caused by Peronospora tabacina, a fungus affecting tobacco plants. Disease first appeared in northern Australia in 1881. Disease spreads rapidly in humid conditions, especially during cloudy and wet weather. Conidia can spread thousands of kilometers through wind and rain