Lichen

Hello I have got grey Lichen growing on the branches of a potentilla shrub and yellow lichen on a honeysuckle. It is ruining the potentilla. I have sprayed them with yellow sulpher in water without success. Can you help please with any suggestions?

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2 Comments To "Lichen"

#1 Comment By Nikki On 05/05/2012 @ 10:54 am

Lichen normally does not cause any problems for plants, other than making them somewhat unattractive, though lichen usually affects plants that are already stressed. For more info on lichen, and how to get rid of it, try this article: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm ^[1]

#2 Comment By tauri37 On 05/05/2012 @ 11:13 am

Thank you for your reply but I cannot treat the Pottentilla with brushing because the branches are too thin how can I tell if they are stressed, also i have a Photina -Red Robin that has dropped all its leaves and the stems are green can you advise on that because that is normally lovely but now looks dead
many thanks

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