Spencer Correia de Arruda, Brazilian plant pathologist (Tietê, São Paulo State 23 July 1912 – after 1989)

First to report castor wilt by a Fusarium species

With R.D. Gonçalves. A "murcha", uma nova doença da mamona em São Paulo. O Biológico 3:232-5, 1937

First description of Fusarium oxysporum f.sp. ricini  

With J. Deslandes. A murcha da mamoneira do Nordeste. O Biológico 6:144-8, 1940

First to report Cylindrocladium sp. as causal agent on Eucalyptus (1936)

Estiolamento de mudinhas (Cylindrocladium) de eucalipto. O Biológico 6:161-2, 1940

Developed methods for growing sugarcane healthy seedlings (1949-53)