Unfortunately, your photos did not come through. There are many things that can cause this damage, though. Usually, wet soils or disease will be the culprits.
In the meantime, this article will help you to know what care these shrubs require:
I have 8 sunshine ligustrum shrubs in the front of my house. They are 4 years old. They looked amazing until about 2 weeks ago when one shrub started dropping its leaves. Now, the next one closest to it is starting to lose them as well. I’m afraid that the next one in line may be affected as well. I’m assuming this is some sort of an infection? What is my course of action? Can they be saved?
Sometimes too much water will cause the same symptoms as underwatering. they may also have developed a fungus or powdery mildew. I would suggest doing a careful inspection and perhaps consulting with your local extension service if the problem continues. Also, be sure you're not overwatering. This article may be helpful:
The picture of the sunshine ligustrum is the worst looking one of the 5 I have. In early March, here in North Alabama, it started feeling like Spring and all of the ligustrum lost what looked like their old leaves and produced new leaves. My husband and I put down slow-release fertilizer in the same month. We had a few freezes in March and we covered the plants. After that, the other 4 plants and the loropetalum seemed fine but the one sunshine ligustrum in the photo started loosing leaves in the back. I check for bugs but never found anything. Thought it would come back until a couple weeks ago when I noticed all of the ligustrum had some type of pest on it. Sprayed the ligustrum and seemed to have gotten rid of the pest but then noticed the loropetalum looked like the photo provided. Sprayed all of the ligustrum and loropetalum after 14 days. Is there any hope for these plants or have I lost them? I am not a gardener of any sort, is there any way to tell if they will survive? Thanks for any thoughts on this.
Sunshine Ligustrum is pretty good about leafing out again when it loses its leaves. The loropetalum looks pretty sad, but keep them both watered and they may perk up.
Newly planted are bad what do I do. Ligustrum, I have 2 that the leaves are dropping no new growth.
Heat shouldn't be killing Ligustrum in zone 7. These articles should help find other causes:
Following picture came from the middle of the plant. How can I treat this?
It does appear to be what is known as "Witches Broom". This describes the appearance of the issue at hand. Unfortunately, it can be caused by many things, from environmental to disease to mutation. In your case, it looks microbial, whether that be fungal, bacterial, or viral.
It will likely take a visit to your local extension service for some testing.
These articles will offer some information on the subjects at hand: