Not sure where you're located, but it sounds like a species of apple borers. There are several types, and all can be a big problem. Spraying bottom 3' of trunks every two weeks or so with permethrin seeems to work for me; there may be other more effective approaches. Commercial guys use (or used) "Lorsban" which was persistent pesticide, but I'm not sure it is even sold anymore.
The tree that broke off and had earwigs run out, i tied and staked it and its doing fine. The other, a crabapple, just turned brown. I have a bucket of 10% bleach water i dip after every cut. I'm puzzled. I will take some pictures and post them when i get a chance.
Besides the fireblight it also it looks like you are using twine to tie your trees to your stakes. You would be better served by something with more surface area. Twine moving on a surface acts like a saw and it will cause bark damage.
Good point TC! Here's a couple good sources for twine and other orchard supplies. http://www.peachridge.com/treetraining/training.htmhttp://www.oescoinc.com/ You'll be fine Mike, just keep working at it. As they get older they don't need to be babied so much. The minute you see that Fire Blight started cut it out and burn it. Start looking for it at blossom time or shortly after.
BigMike, I know you're looking for expert advice and I'm not an expert, but if you have to make a quick decision I've read in a lot of places (including here: http://www.agf.gov.bc.ca/cropprot/tfipm/fireblyt.htm) that you should 'cut out' the FB-infected branches 12 inches +/- into the 'good wood' from where the FB infection is visually obvious.
Also, as Maya mentioned, remove the infected wood from the orchard and burn it!