Education
University of Michigan.
University of Michigan.
After graduating from the University of Michigan in 1903 with a Bachelor of Philosophy. She went to Washington, District of Columbia to take up an appointment as assistant horticulturist and botanist in the Bureau of Plant Industry at the United States. Department of Agriculture under Erwin Frink Smith, the United States Department of Agriculture"s pathologist-in-charge. Hasse was one of the twenty assistants that Smith hired during his tenure at the United States Department of Agriculture. She later worked at the Florida Agricultural Experiment Station. Hasse died at her home in Muskegon, Michigan, aged 46.
Her paper "Pseudomonas citri, the cause of Citrus canker", published in the in 1915, was the first to identify the cause of citrus canker.
While originally it was believed that citrus canker was of fungoid origin, Hasse found that bacteria are at its source. The discovery led to the development of methods for controlling the disease which saved the citrus crops in Florida, Alabama, Texas and Mississippi from being wiped out.