Detailed description of potato late blight fungus

In August 1845, Marie-Anne Libert published a comprehensive memoir detailing her observation of the potato late blight, which had devastated crops across Europe. She named the fungus Botrytis vastatrix, marking one of the first scientific identifications of the pathogen responsible for what became known as the Great Famine of Ireland. This work demonstrated her exceptional skills in mycological taxonomy, providing critical insights at a time when plant pathology was rarely pursued professionally by women.

Libert's identification of the pathogen was groundbreaking, offering one of the earliest scientific understandings of a key agricultural threat. Her detailed work laid foundational knowledge that would be expanded upon by later scientists like Anton de Bary, who confirmed the organism's causal role in the disease. This contribution was not only a testament to her scientific rigor but also her resolve to break gender barriers in the field of science.