ABSTRACT

A new speckle disease of banana leaves in Jamaica was first reported by Martyn1 in 1945. Seven years later, a new disease called greasy blotch of carnation was found in California. Almost simultaneously, flyspeck of apple, whose symptoms are different from that of carnation greasy blotch, was studied by R. D. Durbin and W. C. Snyder. The entire surface of various berries and fruits is normally (more or less) with a whitish waxy bloom. The incipient symptom of disease that can be observed with the naked eye is speckles, about 1 to 5 mm in diameter, caused by the loss of glaucous wax. According to in vitro inoculation tests with mycelial inocula of different host origins, i.e., grape berries, Japanese persimmon, and apple fruits, tiny speckles are distinguishable with the naked eye within 4 d postinoculation and, flyspecks appear by 9 to 10 d on all hosts examined regardless of the source of inocula.