last year our peach tree developed a fungal disease known as leaf curl which causes the leaves to become discolored and eventually the characteristically curled in a gnarly manner. infected leaves fall early and typically fruit will drop early too which means no harvest for the year.
my understanding is that treatment involves spraying an organic copper fungicide known as bordeaux mixture on the branches in late fall or early spring before buds swell. early this spring, hoping to avoid mixing my own batch ofbordeaux mixture, i applied “bordeaux modern replacement” from bonide.
but alas, it appears that leaf curl has once again infected the tree.
any advice on how to prevent leaf curl is mightily appreciated.