This shrub has developed Black sooty coverings on its leaves for the first time since I moved in 7 years ago... as has a Rhododendron.... which has never really flowered even though I feed it the right stuff... any clues????????????
Thanks for that nice to know there is help "out there"........ but oh Flump!! seems like I need to bathe the plant in warm water,,, IT HAS LOADS OF LEAVES TO WASH !!!!!!!!!.... any further thought about the poorly sick... not flowering.... but well established and fed on ericaceous food...rhododendron.... as is the heather .... magnolia and hortensia who are going great guns!!!!!!!!!!???????????
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It sounds like sooty mould, see the link to the RHS below.
http://www.rhs.org.uk/Advice/profile?PID=770
Thanks for that nice to know there is help "out there"........ but oh Flump!! seems like I need to bathe the plant in warm water,,, IT HAS LOADS OF LEAVES TO WASH !!!!!!!!!.... any further thought about the poorly sick... not flowering.... but well established and fed on ericaceous food...rhododendron.... as is the heather .... magnolia and hortensia who are going great guns!!!!!!!!!!???????????