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Shuck Split, Shuck Fall
Diseases. Scab, brown rot, bacterial spot, rusty spot.
Insects. Plum curculio, Oriental fruit moth, leafrollers, plant bugs, aphids.
Rusty spot. Spotting on the fruit of some varieties appears to be due to the apple powdery mildew fungus. Rio-Oso-Gem, Jerseyqueen, Jefferson, Washington, Redskin, and Loring often are affected. Many of the new peach and nectarine cultivars are also highly susceptible. Sulfur, Pristine, Elite, or Nova may reduce rusty spot incidence. Follow label recommendations.
Bacterial spot. Begin weekly applications of Mycoshield at shuck split on susceptible varieties. Sprayer air velocity should not exceed 100 mph. The first applications are most critical for control. Do not apply within 3 weeks of harvest. Dilute sprays with Mycoshield have provided the best control. Spraying at night under slow drying conditions is most effective.
Green peach aphid. If this aphid is present, add Actara, Lannate, or Provado.
Plum curculio. For control, see petal fall spray.
Pesticide Recommendations for Peaches, Shuck Split, Shuck Fall