Large Black spots on Azaleas

Large black spots on Azaleas with light green marshmallow looking things on azalea leaves. Some of the black spots are 1/2″ wide and some of the “marshmallow-looking” things are an inch in diameter.

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1 Comment To "Large Black spots on Azaleas"

#1 Comment By theficuswrangler On 05/22/2014 @ 12:46 am

The marshmallowey things sound like azalea leaf gall. This article tells you about prevention and treatment: http://plantclinic.cornell.edu/factsheets/azaleagall.pdf ^[1]
This article includes a section on leaf spots, and pictures of cercospora leaf spot, which may be your problem: http://www.clemson.edu/extension/hgic/pests/plant_pests/shrubs/hgic2050.html ^[2]

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URLs in this post:

[1] http://plantclinic.cornell.edu/factsheets/azaleagall.pdf: http://plantclinic.cornell.edu/factsheets/azaleagall.pdf

[2] http://www.clemson.edu/extension/hgic/pests/plant_pests/shrubs/hgic2050.html: http://www.clemson.edu/extension/hgic/pests/plant_pests/shrubs/hgic2050.html

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