Gardening Help

Peach & Nectarine Fungicidal Treatment

In wet years  it may be necessary to apply a dormant fungicide application more than once.  To prevent peach leaf curl, spray with a fungicide after the leaves have dropped from peach and nectarine trees, usually in late November, or December.  During particularly wet winters, apply a second time in early spring, just as buds begin to swell. 

Product options include the fungicide chlorothalonil (active ingredient in brand names Daconil, Fung-onil, and Ortho Garden Disease Control, and others), and copper ammonium complex (brand name Liqui-Cop and Kop R Spray Concentrate). 

Read the label carefully and follow directions exactly as stated for most effective treatment.  Carefully follow all safety precautions and container disposal instructions.

For more information, see UC ANR Publication 7426 Peach Leaf Curl.