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spots on hydrangea leaves

Hello – some of my hydrangeas have very spotty leaves that have turned reddish in colour. I think this is a fungus but am not sure. Would you be kind enough to let me know what this is and how should I treat it?

Also, can it pass from plant to plant if they are touching?

Many thanks, Alison Harrison.


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1 Comment To "spots on hydrangea leaves"

#1 Comment By shelley On 08/10/2017 @ 10:14 pm

Could it be Cercospora leaf spot? See link: [1]


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[1] : https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/hydrangea-diseases

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