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Shot Hole in Prunus Laurocerasus
How to identify and treat shot hole in Prunus Laurocerasus.
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Prunus Laurocerasus care requirements
water
Moderate watering; established plants are drought-tolerant, but young plants need consistent moisture for first year.
soil
Well-draining soil; highly adaptable to poor, sandy, clay, or chalky soils; prefers slightly acidic to neutral pH.
light
Full sun to deep shade; one of the few evergreens that performs well in heavy shade, though flowering improves with more light.
symptoms
Symptoms to look for in Prunus Laurocerasus
- fiber_manual_recordSmall purple-brown spots on leaves that dry out and fall away, leaving holes
- fiber_manual_recordRagged, 'shotgun blast' appearance across the leaf surface
- fiber_manual_recordCankers and gumming on twigs in severe infections
help
Common causes in Prunus Laurocerasus
Caused chiefly by Wilsonomyces carpophilus (or related fungi), affecting stone fruit and ornamental Prunus species, favored by wet spring weather and spread by rain splash.
healing
How to treat shot hole in Prunus Laurocerasus
Prune out infected twigs showing cankers or gumming, remove fallen leaves, and apply a copper-based fungicide during leaf fall and again before bud break.
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Preventing shot hole in Prunus Laurocerasus
Avoid overhead irrigation, ensure good air circulation through pruning, and apply preventive dormant-season fungicide sprays in areas with wet springs.