Taphrina pruni being larger than the healthy one. As a fungus, cool and wet weather conditions promote the germination of spores, whilst warm and dry weather results in infection rarely taking place. Colonisation can become extensive and eradication very difficult. The disease can to some degree be controlled by carefully removing infected branches, witch's brooms and fruit before the infective air borne spores are produced. Applications of copper-containing fungicides have a degree of control over the fungus. Taphrina pruni Taphrina pruni is a fungal plant pathogen of blackthorn (Prunus spinosa) that causes the Pocket or bladder Plum gall, a chemically induced distortion
Prunus japonica Prunus japonica Prunus japonica (also "Cerasus japonica"), also called Japanese bush cherry, or Oriental bush cherry, or Korean bush cherry is a shrub species in the genus "Prunus" that is widely cultivated for ornamental use. Its native range extends from Central China through to the Korean peninsula. "P. maximowiczii", the Miyama cherry is also often referred to as Japanese bush cherry. The shrub reaches 1.5 m by 1.5 m. Its flowers are hermaphrodite and are pollinated by insects. The plant blossoms in May. Its fruit reaches about 14 mm and has an agreeably sweet flavor, therefore it is used in