29+ Azalea Leaf Blight

The leaves become curled fleshy and pale green to white. Some of the native rhododendron species azaleas are more susceptible than hybrid rhododendrons.

Ferida S Backyard Azaleas And Orchids

Azalea leaf blight

Dark brown pimple like fungal fruiting structures form within the spots. On evergreen rhododendrons actual growth of the fungus on the lower leaf surface can be hard to detect but infection tends to cause pale green reddish purple or yellowish patches on the upper surface on deciduous azaleas white powdery fungus grows over the upper leaf surface. As the spots enlarge the petals become soft and watery and the whole flower collapses.

Azalea gall this azalea disease commonly occurs in early spring on new leaf growth. The first symptoms are tiny rust colored spots on white flowers and pale or whitish colored spots on colored blooms. In april and may leaves and buds of infected plants develop distorted growth.

The first indication a gardener may have that an encore azalea is suffering from twig blight is the death of the plant s leaves. In this case the leaves buds or stems develop swollen growths with distorted shapes. If the foliage on a branch wilts dies and falls from the plant.

Phomopsis twig blight is a disease of established azaleas in the landscape. Sometimes these growths may get covered with white spots. Azalea lacebug upper surface of leaves has a gray blanched or coarse stippled appearance.

Circular to irregular brown spots up to 1 2 inch in diameter form on leaves especially lower leaves. The most common azalea diseases affecting these shrubs include. Spray undersides of the leaves with malathion dimethoate cygon or acephate orthene.

Spring Blooms Azaleas Rhododendrons And Lilacs Schmalz Landscape