peachleaf curl - Knowledgebase Question

Paradise, Ca
Question by szparadise
May 2, 2009
what to do after tree is infested?

Answer from NGA
May 2, 2009


Peach leaf curl is a fungal disease and once you see the symptoms, it is too late to do anything for your tree. You should rake up all the fallen leaves and then plan to spray your tree next year to avoid the problem. Fungicides applied once the tree is involved in the disease will have no effect.

Peach leaf curl can be managed by a single, dormant application of a registered fungicide. Homeowners may use a registered product containing either the active ingredient chlorothalonil or copper soap (copper octanoateor), or they may use Lilly Miller Kop-R-Spray or Lilly Miller Polysul Summer & Dormant Spray Concentrate on peach trees in late winter or earl spring before the buds begin to swell. Fungicide applications will not be effective if applied after bud break. Read label carefully regarding proper timing of applications.

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