Azalea disease

My George Tabor azaleas have tiny rusty spots on old growth and new growth. This is second year, first year also had spots. Plants were 2.5 gal. when planted. They are healthy looking, but some are really spotted. I do not find any bugs.

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1 Comment To "Azalea disease"

#1 Comment By shelley On 04/17/2015 @ 4:51 pm

It sounds as if your azalea has rust. More information on rust can be found here:
https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm ^[1]

To keep the rust under control, you are going to want to remove and dispose the affected leaves and treat your plant with a fungicide, such as neem oil. Continue to remove leaves and treat the plant until all signs of the plant rust are gone. Furthermore, be very conscientious about watering – rust thrives in a wet environment so you will want to be careful not to overwater your plants.

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[1] https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm: https://www.gardeningknowhow.com/plant-problems/disease/learn-about-plant-rust-disease-and-rust-treatment.htm

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