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lilac blight #877364

Asked July 15, 2024, 5:12 PM EDT

I have 70 feet of lilac hedge, well established, that has withered and turned brown in a matter of a few days. What is your recommendation? Thanks, Mark

Hennepin County Minnesota

Expert Response

Thank you for writing. 
The brief description sounds like bacterial lilac blight but I cannot be sure. 

https://www.canr.msu.edu/news/bacterial_blight_of_lilac

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/http://plantclinic.cornell.edu/factsheets/lilacbacterialblight.pdf

To confirm the diagnosis, you should send a sample to the University Plant Disease Clinic  https://pdc.umn.edu/
Steve Miles, Master Gardener, Hennepin County, (I am a volunteer human being: not a bot, not AI). I'm an avid gardener but not a degreed or certified horticulturist or arborist. I will do much better if you also send a photograph. I like follow-up questions.  The University' garden soil tests are excellent.  https://soiltest.cfans.umn.edu/testing-services/lawn-garden This is how to find a tree expert.  https://extension.umn.edu/planting-and-growing-guides/how-hire-tree-care-professional  A Directory of ISA certified arborists is at https://certificates.directory.isa-arbor.com/  The Minnesota Landscape Arboretum is a wonderful place to see and learn about plants that grow in Minnesota. https://mngardens.horticulture.umn.edu/minnesota-landscape-arboretum  Ask a Master Gardener is a public service of the University of MInnesota's Extension Division.  Please donate if we make you happy.  https://give.umn.edu/gardener Replied July 15, 2024, 6:33 PM EDT

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