Cultural control (Gloeosporium)

• Remove possible source of inoculum, such as cankers, die-back, pruning snags, mummified fruits during winter pruning.
• Remove from the orchard and burn or macerate up in the alleyway to encourage rotting.
• Summer prune at the correct time to avoid die-back of pruned shoots, which provide ideal sites for Gloeosporium and Colletotrichum to colonise.
• Apply calcium sprays to Cox and Egremont Russet in June.  Harvest to ensure good mineral composition for storage.