Joseph Bancroft’s discovery of Fusarium Wilt of banana

Abstract

n the early decades of British settlement at Sydney Cove in 1788, the struggling colonials tried their hand at growing edible bananas but invariably failed. However, they grew extremely well in the Moreton Bay colony (Brisbane) and over time banana growing became an important agricultural industry there, particularly after the introduction of the Cavendish variety. All was progressing well until a new disease appeared in plantations around Brisbane in the early 1870s. The medical practitioner and naturalist Joseph Bancroft investigated the problem and concluded that a fungus was implicated as the causal agent. In the early 1900s, following serious outbreaks of a disease with similar symptoms in Caribbean countries (where it was called Panama Disease), the American bacteriologist Erwin Frink Smith studied the same disease in Cuba, and named the pathogen Fusarium cubense. Another American scientist, Elmer Walker Brandes, conclusively proved that Fusarium cubense (now called Fusarium oxysporum f.sp. cubense) was the cause of the banana disease. Bancroft’s discovery of the disease now called Fusarium Wilt not only predates other reports of the disease in the Caribbean but also represents the first scientific investigation of a plant disease in Australia.