- Hygiene is important for control, since the fungus survives winter on infected fallen leaves, infected fruits and pustules on infected stems. Rake up and burn or compost fallen leaves. Cut back infected parts to remove mummified fruits and stem infections. Note that rigorous cutting back will reduce flowering the following year
- Choose resistant plants. The Saphyr® range and ‘Golden Charmer’, ‘Shawnee’ and ‘Teton’ are all claimed to show some resistance to pyracantha scab
Products containing myclobutanil (Bayer Garden Systhane Fungus Fighter*, Bayer Garden Fungus Fighter Disease Control*, Doff Systemic Fungus Control and other products), tebuconazole (Bayer Garden Multirose Concentrate 2) and triticonazole (Scotts Fungus Clear Ultra) are approved for use on ornamental plants for control of rusts and powdery mildews. They would probably also give useful control of pyracantha scab, although this is not claimed by the manufacturers. Liquid concentrate formulation of myclobutanil is approved for use by gardeners to control apple scab.
*NB: The following products are being withdrawn:
Myclobutanil (Bayer Garden Systhane Fungus Fighter concentrate and Bayer Garden Fungus Fighter Disease Control). These products cannot be sold after the 30th November 2015 and remaining stocks must be used or disposed of before the 30th November 2016.
Fungicides for gardeners (Adobe Acrobat pdf document outlining fungicides available to gardeners)