My lilac bushes have bacterial blight and nothing I try gets rid of it. Can you help?

I am using copper fungicide and am watering and fertilizing regularly. I keep cutting back the affected branches but I can not get ahead of it. I have lost several entire bushes as a result.

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1 Comment To "My lilac bushes have bacterial blight and nothing I try gets rid of it. Can you help?"

#1 Comment By BushDoctor On 08/01/2018 @ 6:07 pm

Can you include a photo? There is a good chance that the soil has been rendered extremely acidic by the treatment. I would suggest adding dolomitic lime to balance that out. It will help recondition the soil and protect it from pH swings. Also, adding a little powdering of wettable sulfur to the soil will help kill off anything lurking there.

This article will give you information on the care of these plants: https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-care-growing-and-planting-lilac-bush-plants.htm ^[1]

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