Noticed distorted, reddish leaves on your peach tree? Peach leaf curl strikes after cool, wet springs, poor soil, or susceptible varieties. Leaves twist, redden, and pucker against emerging green foliage—a classic sign of this fungal foe.
If you've missed the prevention window for peach leaf curl (also called "blister"), skip copper sprays like Bordeaux mixture, oxychloride, or hydroxide. These are preventive only, applied at leaf fall and late winter before buds color.
Even "natural" copper products harm soil life. They're toxic to mycorrhizae (plant-symbiotic fungi), bacteria, and earthworms, eroding biodiversity and plant resistance to pests. Copper accumulates yearly, worsening the issue. Spring sprays won't cure your tree but damage the environment.
Hand-remove affected leaves and burn them. Follow with a horsetail decoction spray—your tree should rebound fully.
Ignore them, and the disease spreads: shoots die back, trees perish in 4-5 years from defoliation, fruits drop early, and next year's crop fails.
Healthy leaves, blister-free.
