Peach leaf curl

Peaches Leaf curl Taphrina deformans copper oxychloride Bordeaux mixture, copper ammonium carbonate,... 

Peach leaf curl disease infects leaves as they unfold in spring, causing red blistering and distortion of the foliage. A temporary shelter to keep rain off until all the leaves have appeared should reduce infection. 

Leaves puckered and reddish. Cause Peach leaf curl. Later in the season, infected leaves may yellow, shrivel, and drop. New growth is stunted and swollen and often dies. Fruit often drops prematurely and may have a reddish, irregular, rough surface. See page 165 for an illustration of this disease. You can t cure this fungal disease during the current season, but copper sprays or lime-sulfur sprays help control it. Resistant cultivars include Candor , Clayton , Com-Pact Red Haven , Correll , Dixieland , Elberta , Red Haven , and Stark EarliGlo . 

Prevention and Ciontrol Plant resistant cultivars. Remove and destroy infected leaves. Peach leaf curl is usually worst during cool, wet springs. If this disease has been a problem in past years, apply a dormant spray of lime-sulfur or bordeaux mix. 

Protection Offered Bordeaux mix acts as a fungicide with insecticidal and insect repellent properties. Use it to control common plant diseases like anthracnose, bacterial leaf spots and wilts, black spot, fire blight, peach leaf curl, powdery mildew, and rust. 

Protection Offered Copper is a broad-spectrum protectant fungicide used to protect vegetables, ornamentals, fruits, and nuts from plant pathogens. Use it in the garden to control anthracnose, bacterial leaf spot, black rot, blights, downy mildew, peach leaf curl, and Septoria leaf spot. 

Peach aphids, green, 269,419 Peach leaf curl, 344,383 bordeaux mix for, 467 copper for, 471 peach and, 165,167,383 Peach rosette, 168,394,394 Peach scab,165,166 Peachtree borers, 313.313 apricot and, 27 cherry and, 69 peach and, 165, 168 pheromone traps for, 437 Peach twig borers almond and, 17 apricot and, 26 peach and, 165, 166-67 Pear, 168-71... 

Rose proliferation and stunting as well as rose leaf curl and shoot dieback symptoms in rose cultivars were associated with aster yellows phytoplasmas (AY, 16SrI-B). It was also found, that two rose cultivars, with shoot proliferation or flower proliferation symptoms were infected by phytoplasma classified to apple proliferation group (16SrX-A) (Kaminska and Sliwa, 2004). Jarausch et al. (2001) reported the occurrence of European stone fruit yellows phytoplasma (16SrX-B), Candidatus phytoplasma prunorum and rubus stunt (16SrV-E), in asymptomatic Rosa canina plants surrounding peach orchards. 

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