Lilac Leaf Death

Question

My lilacs leaves have been turning a darker green with light green veins. The leaves then curl and dye. I noticed this a couple of years ago and have been keeping an eye on the plants. Read somewhere that this is a highly contagious disease and that I should cut them down rake any leaves and burn everything. Have you heard of this disease and will it effect the new growth? I also burned the ground where they where growing. Any information you can give me would be greatly appreciated.

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Answer 1

Unfortunately, the photo of vein chlorosis did not come through. I am unable to see the damage.

Looking at the soil, though- It looks compact. heavy soils and high pH can lead to deficiencies which will show as vein chlorosis in many cases.

Burning the area has, likely, increased the pH even more. I would test the area and amend it as soon as you can.

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/test-soil-for-pests-and-diseases.htm

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/making-sure-soil-drains-well.htm