By Ladyessex1
Leigh-on-Sea Essex,
United Kingdom 
Hello All
My neighbour has a problem with his Robin Redbreast Shrub that he grew like a tree, it is looking rather sick, does anyone know what could be causing this problem for him, leaves all have spots on & falling off?
11 May, 2023
Answers
I would say that the Photinia 'Red Robbin' is suffering from the ravages of last winter. Many of these shrubs suffer from leaf spot. You can treat with something like Fungus Fighter in the short term but it will probably return. Perhaps give it a trim and a feed with something like Vitax Q4.
11 May, 2023
Thanks for the info, I will let my neighbour know xx
11 May, 2023
that does look to be leaf spot. It has several causes
RHS link below
https://www.rhs.org.uk/plants/photinia/growing-guide
11 May, 2023