What is causing my cherry tree to ooze?
I have a very large cherry tree (68 inches circumference at 48" up from the base). In the main branch crotch, and on one of the large side branches, it has developed a transparent amber-colored "oozing." The nodules of amber are not liquid (at least now) and are dry to the touch. The tree had a huge (the fruit is somewhat bitter, but the birds like them) cherry crop this year, and a lighter than usual leaf cover.
Any ideas what is happening, and is there anything I can do?
The exuding of gummy materials is allied gummosis. It is common on peaches and other stone fruits. Much of it is just a natural ooze, but sometimes a pathogen can cause it. Here is an article that will give you more information: Gummosis of Stone Fruits. There is little that you can (or need) to do.