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Mountain Ash Trees

Q.My Joseph Sorbus Rock Tree About Thirty Years Old Leaves Are Turning Brown Plant Appears To Be Dying Happened Last Year Aswell Don

Zone RG12 2QY | Anonymous added on August 25, 2024 | Answered

t understand why can anybody advise on what it is and treatment if possible

GKH_Susan

Certified GKH Gardening Expert

Answered on August 26, 2024

'Joseph Rock' is susceptible to several diseases, including fire blight, as well as pests. For fire blight, prune out the infected branches. These articles should help:

https://extension.psu.edu/mountain-ash-diseases

https://www.rhs.org.uk/plants/95813/sorbus-joseph-rock/details

https://ipm.ucanr.edu/PMG/GARDEN/PLANTS/mountainash.html

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