TECHNICAL DOCUMENT ON LEAF CURL OF PEACH | Journal of Global Agriculture and Ecology

Taphrina deformans, a biotrophic parasitic fungus, causes peach leaf curl. Approximately 90% of the peach acreage has been treated for this devastating disease. Spring leaves are distorted, swollen, curled, and tinted crimson or yellow rather than the usual green. Shoots that are severely afflicted die. When the fruit is contacted by diseased leaves, irregular crimson lesions appear. By early summer, sick leaves have fallen to the ground, and recurring infections weaken trees and damage branches. In all peach-growing areas, dormant treatments are required. Except in locations with excessive rainfall or where leaf curl has become a growing problem, one spray in late winter before buds fully is sufficient. The utilisation of resistant or tolerant cultivars will be of great interest in these situations. At least 12 hours of moisture (high humidity or rain) and temperatures between 10°C and 21.5°C are required for infection. Peach leaf curl is the subject of this technical article, which covers symptoms and signs, epidemiology, disease cycle, ecology, and disease management.

Please see the link :- https://www.ikprress.org/index.php/JOGAE/article/view/6715