Peach Disease - Rusty Spot

Minor issue in Pennsylvania and is caused by the same fungus as apple powdery mildew. Loring is a susceptible variety.
Peach Disease - Rusty Spot - Articles

Updated: October 18, 2017

Peach Disease - Rusty Spot

Rusty spot is recognized only on the fruit. The earliest symptoms on young green fruit appear as small, orange-tan spots. K. Peter.


Young peach fruit become infected and exhibit white non-powdery lesions that are small, spherical, and later turn orange-tan in color. Leaves and stems are not affected.

Disease management

Routine fungicides control this disease. Controlling mildew in adjacent apple orchards reduces rusty spot incidence in peach orchards.


Apple and pear diseases Peach, cherry, other stone fruit diseases Tree fruit disease management

More by Kari A. Peter, Ph.D.