Hi everyone. I'm from Southern California, USA. It's always sunny here, without much rain. Temperature was around 40F in the winter and 80F in the summer. But I always give the tree enough water. My plum tree is old, about 15+ years old. It produced so many plums last year. But after the last winter, I found that one of the major branches stopped producing new leaves. And I found the traces of termites. I understand that termites don't eat from live trees, so there were some other reasons that killed my branch. Now I'm worried about the whole tree will die soon for the same unknown reason. May be insects? Here are some pictures of the tree. Any idea what caused it? And the treatments? Thanks everyone!
