Cherry, Flowering (Prunus spp.)-Leaf Spot

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Chemical control Apply a fungicide at petal fall, shuck fall, and 2 weeks later. Rotate or tank-mix materials from different groups with different modes of action to prevent resistant strains from developing. A forecasting program is available from Michigan to help time applications. Tests in western Oregon show the program is useful at higher temperatures.

  • Armada 50 WDG at 3 to 9 oz/100 gal water. Do not use a silicone-based surfactant. Not for nursery or greenhouse use. For non-bearing fruit trees only. Group 3 + 11 fungicide. 12-hr reentry.
  • Banner MAXX at 2 to 4 oz/100 gal water. For non-bearing fruit trees only. Group 3 fungicide. 12-hr reentry.
  • Bonide Fung-onil Multi-purpose Fungicide at 2.25 teaspoons/gal water. H
  • Broadform at 5 to 7.6 fl oz/100 gal water. For non-bearing fruit trees only. Group 7 + 11 fungicide. 12-hr reentry.
  • Daconil Weather Stik at 1.4 pints/100 gal water. Treated fruit must not be eaten. Group M5 fungicide. 12-hr reentry.
  • Eagle 20 EW at 6 to 12 fl oz/100 gal water. Do not use treated fruit for food. Group 3 fungicide. 24-hr reentry.
  • Myclobutanil 20 EW T&O at 6 to 12 fl oz/100 gal water plus spreading agent. May observe a PGR effect. Do not use treated fruit for food. Group 3 fungicide. 24-hr reentry.
  • Protect DF at 1 to 2 lb/100 gal water plus 2 to 4 oz spreader-sticker. Do not use treated fruit for food. Group M3 fungicide. 24-hr reentry.
  • Spectracide Immunox Multi-Purpose Fungicide Spray Concentrate for Gardens at 1 fl oz/gal water. Group 3 fungicide. H
  • Thiophanate-methyl-based products. Group 1 fungicides. 12-hr reentry.
    • Cleary's 3336 EG at 12 to 16 oz/100 gal water. Do not use after fruit set if applied to fruiting trees.
    • OHP 6672 4.5 F at 10 to 14.5 fl oz/100 gal water. Do not use treated fruit for food.
  • Trigo at 3 to 9 oz/100 gal water. For non-bearing fruit trees only. Group 3 + 11 fungicide. 12-hr reentry.