I have yellow leaves on Rhodendrum and lots of ornge tiny spots on roses , can anyone give advise on what it may be and what to spray thanks
wheelz,
Nov 26, 10:47am
The orange spots on the rose leaves sound like Rust. You need to remove affected leaves from plant and off the ground, it spreads rapidly ! And spray using a fungicide, like Bravo or Greengard or similar or a Rose spray like Gild or Shield. I don't grow Rhodes so can't help with that one.
redhead96,
Nov 26, 10:51am
Epsom salts help with yellow leaves.
a4dibbleplants,
Nov 22, 3:02am
Rhodos need an acid soil so try sequestroneor a special rhodo azalea fertiliser
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