Q.Lilacs
My lilac blooms all turned brown. What is causing that?
Alisma
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on May 3, 2017
This could be lilac bacterial blight. Please see the following articles for advice:
https://www.gardeningknowhow.com/ornamental/shrubs/lilac/common-lilac-problems.htm
https://extension.psu.edu/pests/plant-diseases/all-fact-sheets/lilac-diseases
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