East Lothian,
United Kingdom 
We bought a fairly mature amelanchier lamarckii in the autumn but it was not delivered until just after Christmas. It and a prunus we bought did very well and there was a good amount of blossom however I have just been away for 10 days and I have come back to find the leaves on the amelanchier have a faint showing of mildew (photo attached). Could somebody advise me on what I should do? It is in the corner of the garden, fairly damp but I think reasonably well drained. There are other trees and shrubs nearby,
SG
18 May, 2011
Answers
Yea, mine get this at this time of year, doesn't seem to affect the tree, just looks a bit manky!!The leaves will still turn a gorgeous colour in the autumn.
18 May, 2011
Thank you, both of you. A nervous beginner constantly worried that everything is going to suddenly die in spite of some evidence that plants are much more robust than I think they are!
SG
18 May, 2011
Hello - I have the exact same issue! How often should I spray with the milk/water solution?
Thanks SO much
EA
26 Jun, 2011
Treat when you see it, repeat if it recurs.
1 Jul, 2011
Previous question
« When & how should I store finished tulips and narcissus? (please)
Spray with a fungicide that treats for mildew, or use a spray made up with 1 part full fat milk and 9 parts water.
18 May, 2011