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 tianshanica "Cerasus tianshanica" is properly "Prunus tianshanica". Prunus tianshanica Prunus tianshanica, the Tianshan cherry, is a species of cherry native to the Tianshan Mountains of Central Asia, preferring to grow at 800-1000m. "Prunus tianshanica" is a shrub reaching . The bark is grey, turning browner with age. The flowers are pink, and the dark red fruits, although small, are high in sugar and pleasant to the taste. It hybridizes naturally with "Prunus cerasifera", and the offspring produce fruit. A phylogenetic reconstruction using twelve chloroplast loci and three nuclear genes of 84 species of "Prunus" shows that "Cerasus" is indisputably a synonym