Based on observations and considering results from peach brown rot research in the past three years, the following information is in regards to a spray schedule for peach trees without fruit:

The important diseases:

• Leaf curl: A serious leaf disease, regardless of fruit crop.
• Bacterial spot: A serious leaf disease, with or without fruit.
• Powdery mildew: Some shoot infections may occur. Powdery mildew is more serious problem on fruits.
• Brown rot: If there is no fruit, it should not be a serious problem in Illinois.

Suggested sprays:

• Dormant stage: Chlorothalonil (i.e., Bravo Weather Stik) + Copper Sulfate (or Kocide-300) – with full rates. This is to control leaf curl disease.
• From pink stage to full bloom: Chlorothalonil (i.e., Bravo Weather Stik – medium to full rate) +  [Kocide-3000 (or another copper compound) at 1 – ½ lb metallic copper/A)] + Inspire Super (full rate), at 7-day intervals. This is for bacterial spot and powdery mildew. Inspire Super controls powdery mildew and is needed for every other spray (14-day intervals).
• Petal fall - shuck-split: [Kocide-300 (or another copper compound), at 0.5 – 0.20 metallic copper/A] + Mycoshield (12 oz/A). This spray is for controlling bacterial spot. Fontelis can be added to the spray suspension, if there is powdery mildew developing on the shoots.
• Shuck-split to the middle of July: Mycoshield (12 oz/A) + 0.20 - 0.1 lb metallic copper/A (Kocide-3000 or another copper compound). 

Note on metallic copper: 65% of Kocide-3000 is metallic copper; Each gallon of Cueva contains 0.16 lb metallic copper. So, amount of copper compound can be calculated based on the available metallic copper (check the label).