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Camellia Gall



P_camelliagall

Camellia Gall

Usually appear in

Summer


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Caused By:-     The Fungus Exobasidium camelliae

Description

Camellia gall is caused by the fungus Exobasidium camelliae. The galls are formed at the shoot tips where the leaves should be in early summer. This disease only attacks camellias especially in wet weather. A similar disease of azaleas and rhododendrons is caused by the closely-related fungus Exobasidium japonicum. The galls can be large, up to 20cm(8in) in length, and vary in shape. Initially light green protuberances, which eventually get covered in spores which are white or buff. They have a firm texture at first, becoming softer with age. This fungus enters the intercellular spaces in the leaves causing firm, creamy coloured swellings or galls. These galls continue to develop instead of leaves the surface of which are covered in spores. Picture by Robert Lambe, Virginia Polytechnic Institute and State University, Bugwood.org.
See also these other Galls ACER GALL MITES, ACORN GALL MITES, AZELAE GALL, BEECH GALL MIDGE, BLACKCURRANT GALL MIDGE, BROOM GALL MIDGE, CROWN GALL, EUONOMUS GALL, FELT GALL MITES, FORSYTHIA GALL, GALLS, GALL WASP, GLEDITSIA POD GALL MIDGE, HEMEROCALLIS GALL MIDGE, HAWTHORN BUTTON TOP GALL MIDGE, KNOPPER GALL OF ACORNS, LEAFY GALL, LIME NAIL GALL MITE, OAK GALL WASP, PEAR LEAF BLISTER MITE, PINAPPLE GALL ALDELGID, PLUM GALL MIDGE, ROBINS PINCUSHION, TURNIP GALL WEEVIL, VINE ERINOSE GALL MITE, VIOLET GALL MIDGE, WILLOW BEAN GALL SAWFLY.


Control

The gall is more prevalent in wet conditions and the spores are dispersed by various means like rain or wind.
Remove and burn the gall before it starts to generate spores.
Because it is systemic a good systemic fungicide and watering the soil with Jayes fluid will help. Although hideous, camellia gall is unlikely to affect the shrub, especially if it is otherwise healthy.
Keep an eye on all your camellias next year and take off any developing galls as soon as you spot them.
If spores are already present it would be worth enclosing the gall in a plastic bag before removing it.



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