Plant to avoid bacterial canker

Bacterial canker, Pseudomonas syringae is common disease afflicting many types of fruit trees.

The disease is also called blossom-blight but we’ll concentrate on its affect on young newly planted trees.

Cherry trees are particularly sensitive but other stonefruit, apples and pears are also prone to infection given the right conditions.

---TOPICS in this article---

  • Symptoms
  • Life cycle
  • Control
    • Minimise stress on young or recently planted trees as it is a major predisposing factor. For example,...
    • Don’t let weeds grow around the trees...
    • Remove any severely affected trees in surrounding orchards, and...
    • Trees with minor gumming may recover
    • Applications of copper oxychloride ...
    • Some rootstocks may have some resistance e.g...
    • Before establishing new orchards, have soil tested for pathogenic nematodes.
    • Avoid pruning or root trimming of newly...

--IMAGE-- Bacterial canker infection on an apricot tree.

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