Dusty Lilacs - Knowledgebase Question

Upper Marlboro, MD
Question by agrabiz68
July 20, 2000
I have noticed that each year during the summer (June/July) the leaves of my lilac seem to get a dusty appearance as if it has been sprayed with something.

Answer from NGA
July 20, 2000


This is probably mildew and lilacs typically suffer from it during the humidity of summer. You can treat it with a fungicide labeled for use on lilacs if it is too unsightly, but it probably will not kill the plant.

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