The fungus Phomopsis sp. was consistently isolated from blighted leaves of aroeira trees (Myracrodruon urundeuva) in Federal District, Brazil, in 1999. Pathogenicity tests on aroeira seedlings under greenhouse conditions have confirmed the fungus as the causal organism of the disease. Symptoms of leaf blight appeared six to eight days after inoculation. The alpha conidia of the pathogen were 5,3-7,8 x 2,0-2,7 µm, hyaline, ellipsoid to ovoid, and the beta conidia were 17,5-.27,5 x 0,5 µm, filiform, mostly curved and hyaline.
