Schizothyrium pomi (Mont.:Fr.) Arx

Sooty blotch and flyspeck are found together on the same fruit and affect only the epidermal layer of the fruit (A). Flyspeck colonies appear as distinct groupings of shiny, black fungal bodies on the surface of the fruit (B). The number of colonies or "specks" range from a few to over 50 per grouping.

  • Management

    The primary means of managing sooty blotch and flyspeck is through the scheduled use of fungicides from mid-June through August. However, summer pruning and regular mowing helps to reduce disease pressure by lowering orchard humidity and promoting quicker drying of fruit surfaces. In addition, removal of raspberry and other brambles along the orchard border reduces outside sources or inoculum.

    Crops Affected

    • Apples
    • Grapes
    • Pears
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