Lilac Bushes
Q.

Lilac Trees

Anonymous added on July 10, 2012 | Answered

We have 4 lilac trees along our back fence. Two years ago, one of them became brittle and dead looking and produced no leaves. It is now spreading to the other three. Yesterday I was able to break it off at the ground level or simply pull it up at the ground level. What is happening?

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Nikki
Certified GKH Gardening Expert
Answered on July 11, 2012

The trees are likely infested with some type of insect or have a fungus. You can remove any dying, brittle growth and treat the lilacs with neem oil. It is effective in treating many types of insect pests and is a fungucide as well. Here is more info: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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