COMMENTS on disease
disease can affect all varieties of Prunuslaurocerasus and Prunuslusitanica and
is caused by a bacterial pathogen called Pseudomonas syringaepvsyringae or the
fungi Stigmina and Eupropolella.
disease tends to be more of a problem on nurseries that use overhead irrigation
(sprinklers) to water their plants as the disease is spread from plant to plant
by water splash on the leaves. Shot-hole is not a disease that will threaten
the life of a laurel and most plants will grow out of the problem once the
growing conditions change (i.e. the laurel are planted into the ground where
they do not need to be watered with sprinklers or the weather becomes drier)
and new leaves are produced that cover up the diseased
leaf spots between 2 and 10mm in diameter that eventually drop out to leave the
leaf looking like it has been shot with a shot-gun.
control is not necessary. Laurel plants will grow through the disease when the
weather or growing conditions change. When the plants put on new growth,
it will cover up the disease.
not water the leaves, water the soil around the base of the plant when watering