If its only oozing from the base it sounds more like borers to me. But the main sign its truly borers is there will be brownish-tan sawdust-ooze stuff. Its like you mixed 50-50 sawdust with the clear goo that oozes from peach trees. Dig around the base to see if you have any of that.
I have tried many treatments. My current one which seems that it might actually work is I paint the lower few inches of trunk and underground with raw neem (not spray, the non-diluted oil). The trees don’t seem to mind and I have not seen a single borer this year after I applied the neem over the winter.