Lilac Bush Diseases And Harmful Pests

My young lilac bush was affected by brown leaf curling and die off last summer. This spring only 1/3 of the bush survived last year’s problem. I have sprayed it with sulpher spray and dormant oil. What caused this and will the lilac bush survive. Thank you.

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1 Comment To "Lilac Bush Diseases And Harmful Pests"

#1 Comment By GKH_Susan On 04/21/2021 @ 11:39 am

This article should be helpful in determining the disease or insect problem. Powdery mildew is the most common problem of lilacs. Have you pruned the tree? It may need a rejuvenation pruning.

https://www.gardeningknowhow.com/ornamental/shrubs/lilac/common-lilac-problems.htm ^[1]

https://www.gardeningknowhow.com/ornamental/shrubs/lilac/pruning-lilac-bushes-when-to-trim-lilac-bushes.htm ^[2]

https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-care-growing-and-planting-lilac-bush-plants.htm ^[3]

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[1] https://www.gardeningknowhow.com/ornamental/shrubs/lilac/common-lilac-problems.htm: https://www.gardeningknowhow.com/ornamental/shrubs/lilac/common-lilac-problems.htm

[2] https://www.gardeningknowhow.com/ornamental/shrubs/lilac/pruning-lilac-bushes-when-to-trim-lilac-bushes.htm: https://www.gardeningknowhow.com/ornamental/shrubs/lilac/pruning-lilac-bushes-when-to-trim-lilac-bushes.htm

[3] https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-care-growing-and-planting-lilac-bush-plants.htm: https://www.gardeningknowhow.com/ornamental/shrubs/lilac/lilac-care-growing-and-planting-lilac-bush-plants.htm

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