Leaf Gall On Azaleas How To Treat Azalea Leaf Gall

Azalea leaf gall is a very common and widespread fungus disease that occurs in early spring on new azalea foliage. The leaves become thickened, curled, fleshy and pale green to white in color.
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Control

Handpick or prune out and destroy (burn) galls.
Spray with recommended fungicides, such as Daconil 2787 or Mancozeb.

What causes leaf gall on azaleas?
What causes leaf gall?
How is Exobasidium treated?
How do you treat azalea leaf spots?
How do you get rid of leaf galls?
How do I get rid of an azalea gall?
What does a gall mite look like?
How do you treat a camellia leaf gall?
How do you prevent gall mites?
Why are my azalea leaves turning brown?
What is growing on my azalea leaves?
How do you treat powdery mildew on azaleas?

What causes leaf gall on azaleas?

Azalea leaf gall, caused by the fungus Exobasidium vaccinii, are common on azalea in the spring during wet, humid, cooler weather. The fungus invades expanding leaf and flower buds causing these tissues to swell and become fleshy, bladder-like galls. Initially, the galls are pale green to pinkish.

What causes leaf gall?

Galls are abnormal growths that occur on leaves, twigs, roots, or flowers of many plants. Most galls are caused by irritation and/or stimulation of plant cells due to feeding or egg-laying by insects such as aphids, midges, wasps, or mites.

How is Exobasidium treated?

It is also possible to control this disease using a protectant fungicide like Captan sprayed repeatedly from budbreak through green fruit stage (February to April), Most commercial growers treat routinely for this disease in fields where Exobasidium is known to occur.

How do you treat azalea leaf spots?

Fungicide sprays recommended for azaleas include copper hydroxide, copper-based fungicides, thiophanate-methyl or chlorothalonil. For Cercospora leaf spot on rhododendron use propiconazole, thiophanate-methyl, chlorothalonil or mancozeb.

How do you get rid of leaf galls?

Before you ever see bumps on leaves or other plant parts, spray with a miticide to prevent galls on ornamental plants. Horticultural oils and some insecticides will be effective but not after the mites are under the surface of the plant.

How do I get rid of an azalea gall?

Azalea leaf gall is a very common and widespread fungus disease that occurs in early spring on new azalea foliage.
...
Control

Handpick or prune out and destroy (burn) galls.
Spray with recommended fungicides, such as Daconil 2787 or Mancozeb.

What does a gall mite look like?

These small, elongated, spindle-shaped growths generally occur on the upper leaf surface. The 1/5” long galls are about the same diameter as a pencil lead, tapering at both ends. They begin a green color and eventually change to tan.

How do you treat a camellia leaf gall?

Treatment is simple-prune off and dispose of the affected growth in the trash (in a closed plastic bag to avoid spreading the disease) as soon as you notice it. Do not compost infected leaves. The rest of the plant will not require treatment as the infection is contained to the affected leaves.

How do you prevent gall mites?

Monitoring plants, using plants less susceptible to gall mites, removing infested leaves and branches and heavily infested plants (like corn or wheat), can help keep infestations down. Pesticides formulated for mites can be used if absolutely necessary.

Why are my azalea leaves turning brown?

A: Brown leaf margins are caused by too little or too much water and possibly too much afternoon sun. Azaleas are shallow rooted and like an evenly moist soil and good drainage. Make sure the soil is not too soggy, not too dry and try to avoid swings from wet to really dry.

What is growing on my azalea leaves?

Leaf galls, caused by the fungus Exobasidium vaccinii, are common on azalea in the spring during wet, humid, cooler weather. The fungus invades expanding leaf and flower buds causing these tissues to swell and become fleshy, bladder-like galls.

How do you treat powdery mildew on azaleas?

Apply a fungicide to buds as they begin to turn color. Powdery Mildew – This azalea disease appears as white powdery growth on the leaves and occurs most often during fall. Diseased leaves may drop prematurely. May require fungicide spray.