Aphids, Ladybugs, Woodpeckers, Death!
Sometime last fall I noticed what I thought were aphids on my two pittosporum "trees" (they are both about 9' tall, with multiple trunks). I sprayed them and thought I solved the problem, although I noticed shortly after that that there were quite a few ladybugs on them. I didn't bother with them, mostly because I got busy, but I did notice that the trees started smelling REALLY, REALLY weird. An unpleasant, musty smell. It was very strong. They smelled like that for a good 2 months, and still do stink a little.
Anyway, a couple of months ago, I saw a woodpecker pecking away at the trunks of one of the trees. I've seen him out there at least 10 times since then, and, from the looks of the trunks, he's out there quite a bit. Lately I've also noticed that the trees aren't as full as they used to be, too, so today I took a better look, and it looks like at least one of the trunks is completely dead.
What's going on, and is there any hope for these trees?