I don't have the background info on the Wynoochee early, but I do have one of the trees and I LOVE it. Great fruit, nice looking tree. We're in the Portland Metro area and have had only good results from this tree. I did discover it's first fruiting year that I needed to thin the fruit a lot more than I did - the fruiting was so abundant it actually bent some of the branches down! A little judicious pruning and proper thinning the following year and the tree is fine now.

I haven't had any apple scab on either of my trees. I don't spray at all. However, I do need to use tangle trap to catch the spring insects that otherwise cause wormy apples. This past spring we were out of town during the time to hang up our red sticky globes, and this past years apples had a lot of worm holes.

The year before I put tangle trap on cheap store-bought small red apples and hung them from the trees with yarn, recycling them in the compost bin when finished. Had perfect apples, no worms, no scab. Both apple trees (a Wynoochie Early and a Liberty) are in our full-sun front yard with good airflow, so don't know if that makes any difference in health and fruit production.