What Causes Canker Diseases
Most Cankers Are Caused by Fungi, Which Invade Bark Tissue on Current Season Wood. However, Some Colonize Both Bark and Inner Tissue Causing Canker Rots That...
Most cankers are caused by fungi, which invade bark tissue on current season wood. However, some colonize both bark and inner tissue causing canker rots that persist for years.
How does canker disease spread?
SPREAD AND MOVEMENT Citrus canker is a highly contagious plant disease and spreads rapidly over short distances. Wind-driven rain and water splash are the primary means of short distance spread within and between trees. Irrigation can increase the risk of disease spread.
What does canker disease look like?
Cankers are usually oval to elongate, but can vary considerably in size and shape. Typically, they appear as localized, sunken, slightly discolored, brown-to-reddish lesions on the bark of trunks and branches, or as injured areas on smaller twigs.
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