Hi, I have a plum tree which is about 10 years old,up until the last 3 years I've had lovely fruit from it. The last 3 years all the fruits begin to ooze a gel like bubbling substance, I'm assuming pectin, and this year, the fruits have also split heavily and oozed even more. I took some advice a couple of months ago and started to feed it weekly and then 2 weekly, this seems to have worsened the problem, or something has as this year is the worst they have been for bursting and oozing. Any advice would be greatly appreciated. Many thanks