Ligustrum are evergreen shrubs or trees. They are prone to root rot or leaf spot. Leaf spot is caused by fungii and causes the needles to turn brown and drop off. Fungicide is the required treatment. Root rot, on the other hand, has no known effective treatment
This diseases are found in plants. This disease normaly target young growing plants. They restrict the further growth of plant by attacking on the roots of plants.
Common landscape plants, they can suffer from aphids, scales, whiteflies, nematodes, and spider mites. Leaf spot is a fungi and can cause leaf drop(apply fungicide). Once infected with root rot, though, there is no cure.