Lilacs - Knowledgebase Question

Denville, Ne
Question by ekushnerov
May 11, 2009
Some of my Lilacs, that are planted as property divides in one line, got curled up leaves with brown spots. And some of the lilacs from the same line are fine.
I wonder what can be done to prevent it ?

Answer from NGA
May 11, 2009


What you describe sounds like Psuedomonas syringiae, or bacterial lilac blight. To control, prune the affected shoots back about 12" below the infected leaves. This should encourage healthy new growth. When new growth begins, feed your lilacs with a 5-10-10 or 10-20-20 and be sure to water them deeply once each week. Feeding and regular watering will help your lilacs become more robust and less likely to develop problems. Good luck with your lilacs.

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