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My other thought would be. Does the adult choose the pitch glob of the old larvae that has already pupated and flown away, to lay the new egg, because I was told to get rid of the old globs due to the fact that the larvae may be to small to see and embedded in the old pitch mounds.

ok so my question is do the larvae lay the eggs or the adult moth? My reasoning would tell me the adult moth would be the culprit. Sticky pheremon traps may be helpfull for future egg-layers.

As for the flow, I believe that they continue to drill around and produce more pitch to flow. Creating more food, poop, and a better place to incubate their eggs for future generations.

I would think that they ingest at least some of the pitch. I think the color of the pitch is then also the color of the excrement, which is somewhere between pitch and poop. Maybe a little of both. The moth larvae also puts future larvae into the pitch mound in the form of eggs. Feel free to...

I would assume that they excrete it through their rectal cavities. :O They do chew on a small part of the cambium and then feed on the fluid that comes from the damage. Like was already said, I don't think they do any major damage just that it looks a little unsightly. Some of the pitch/fras...

Copy that. That's what I've been told around here by some local bug geeks. I have a job to pick all the bugs out of a landscape tree. Sounds like a good time, pitch and all. So do you think they will stay gone or be a reoccurring thing? Of course I will advise to water the tree a little...

here is a picture if anyone is interested. They are living in a ponderosa pine.

Just wondering if anyone has had any luck with physically removing this pest. I was told to not use any pesticides and that I could remove the larvae with relative ease. Any suggestions? Pete