Q.Lilac Leaf Death
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.
Certified GKH Gardening Expert
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.