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Taphrina deformans is a fungus and plant pathogen, and a causal agent[s] of peach leaf curl. [1] Peach trees infected with T. deformans will experience leaf puckering and distortion, acquiring a characteristic downward and inward curl. Leaves will also undergo chlorosis, turning a pale green or yellow, and later show a red or purple tint. [2]
Peach leaf curl mainly affects peach, nectarine, and almond trees. Apricots are generally immune to peach leaf curl (instead, the major apricot diseases are blossom wilt and branch dieback caused by Monilinia fructicola in the spring and Eutypa lata in the summer). [4] [5] However, in an isolated case in Hungary in 2011, peach leaf curl was ...
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Green fruit rot Botrytis cinerea Botryotinia fuckeliana [teleomorph] Monilinia fructicola Monilinia laxa. Sclerotinia sclerotiorum: Leaf curl: Taphrina deformans. Phymatotrichopsis root rot Phymatotrichopsis omnivora = Phymatotrichum omnivorum. Phytophthora crown and root rot Phytophthora cactorum Phytophthora cambivora Phytophthora citricola
Peach cultivars in Texas range in their requirements from 100 chilling units (Florida Grande cultivar, zoned for low chill regions) to 1,000 units (Surecrop, zoned for high chill regions). [6] Planting a low-chilling cultivar in a high-chill region risks loss of a year's harvest when an early bloom is hit by a spring frost. [6]
Pruning and treatment dots also give a heads-up to property owners near the trees. This way, when the city notifies them of an upcoming pruning or treatment, they know which trees will be affected.
Taphrina is a fungal genus within the Ascomycota that causes leaf and catkin curl diseases and witch's brooms of certain flowering plants. One of the more commonly observed species causes peach leaf curl.
In addition to its use to control fungal infection on grape vines, the mixture is also widely used to control potato blight, peach leaf curl and apple scab.Although it may be bad for the environment, [1] [2] some organic agriculture advocates allow its use, [citation needed] so is often used by organic gardeners in some parts of the world.