My lilac bush is being shadowed by a large rose of sharon I don%26#039;t know if this has anything to do with it. But there is a white, mildew on the leaves. Could it be a vitamin thing or lack of sun?
My lilac bush%26#039;s leaves have white spots?
Most likely white mildew, kind of fungus. You might need to create more air circulation for the bush and trim rose of sharon a bit, so the lilac will get more sunshine(not too much, though). Treat with fungicide and see what happens. Don%26#039;t forget! Lilac is acid loving plants, but the rose isn%26#039;t. Don%26#039;t use rose food for lilac.
Reply:Sounds more like a fungus. Take some of the damaged leaves to your local nursery or garden center. They can help..
Reply:There is a tiny white bug that lookd like white mildew, did you look real close.. the bug is harmless. if it is mildew , you can spray with any good (I like Bayer brand) fungicide, or use a root absorbed fungicide. . Rose treat or miracid helps plants resist fungii.. Epsom salts help most bushes by increasing health and resistance( about a half a cup per gallon water twice a season)..Lilac does not like wet feet- so let it get a little dry between waterings
Reply:COULD BE SPIDER MITES... YOU COULD TAKE A SAMPLE OF THE LEAVES TO YOUR LOCAL EXTENSION OFFICE AND THEY MAY BE ABLE TO TELL YOU FOR SURE.
Reply:It is not lack of nutrients or lack of sun, it is a bug. They look like white specs or sometimes a white cobweb like film, get some ortho %26quot;bug b gone%26quot; treat the plant before the pests kill it.