Different growths are caused by different animals. Here's what it means if you see one of these on your oak tree ...
Galls are abnormal growths on a part of the plant. They can be caused by bacteria, insects, mites and fungi. They can be on ...
Fruit trees are particularly prone. The bacteria that cause them can live in the soil for a long time. Galls are abnormal growths on a part of the plant. They can be caused by bacteria ...