There should also be droppings on the outside in the form of pelletized sawdust (sometimes green in young tissue). If it's a larva.Some leaf miners can dig into young branches. I've had this happen in the past. Look for holes and if you find them, unfortunately, the best course of action is to cut it out. There will be a caterpillar or larva inside.
Hmmm, no visible holes, no droppings. I am a novice to bonsai and pines. Maybe a random random resin push because it isn’t localized, more through the whole tree.There should also be droppings on the outside in the form of pelletized sawdust (sometimes green in young tissue). If it's a larva.
I think they're called either pine tip moth or pine shoot moth, depending on who you ask. To my knowledge they're everywhere on earth as long as there are pines.
However, resin production can be a random thing too. So if there are no droppings or clear signs of bad health in the shoots, it could just be some sap leaks from mechanical/random damage. Don't cut anything off if you're not sure.
Thank you! It was pruned by the nursery I bought it from. I purchased it about a month ago and they had pruned it “shortly” before that…. Maybe a couple weeks. I see a couple areas branches were trimmed off and they are leaking also.It looks very much pruned in the last picture.
Did you do that?
Since there are so many new shoots everywhere, it might just be the sap pushing through an open wound. It will close by itself if that's the case.
I asked if you did that pruning, because it looks like this years entire shoot has been pruned off. Which is a double flush pine technique - JRP, JBP, Rigida. Now scots can double flush! But on the long run that takes a lot of energy. So it's best not done every year, maybe once every 4 or 6 years at most.
That's just a heads up, a lil warning.
I know some nursery people apply one technique to all trees, which isn't necessarily bad, but it's not always the best either.