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Azalea Gall



P_azaleagall1

Azalea Gall

Usually appear in

Spring to Autumn.


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Caused By:-     The Fungus Exobasidium vaccinii

Description

Azalea is caused by the fungus Exobasidium vaccinii. Pale green growths appear instead of leaves, petals, branch tips and seed pods on azaleas and Rhododendrums. Sometimes they are pinkish-red. The galls later turn powdery white as spores develop on its surface. The gall then withers and dries. The fungus overwinters within the infected plant. This disease is not usually a serious problem unless wet conditions prevail for long periods of time. Picture by Division of Plant Industry Archive, Florida Department of Agriculture and Consumer Services, Bugwood.org.
See also these other Galls ACER GALL MITES, ACORN GALL MITES, BEECH GALL MIDGE, BLACKCURRANT GALL MIDGE, BROOM GALL MIDGE, CAMELLIA GALL, 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

Remove galls before spores form and spray with a suitable insecticide.
The spores are wind borne and infection can occur at any time. Spraying with a systemic fungicide may help prevent this disease.



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