I started both of my boys when they were knee high to Hecter's Pup. Little by little they grew into their own gardening styles. They are both like dad about 99% organic. They started the pear insanity. I followed. Today finding three to five Asians on our properties is common.
I prune the dickens out of them yearly to limit size and production. Each has its own great flavor. The deer clean up the left over drops every fall. I am so appreciative of the best that I have even culled producing trees on two occasions to make room for another possible best Asian in our opinion. The wife and I share pears all over the neighborhood. Strange as easy as they are to grow that few if any friends have planted their own Asian Pears. We have never had fire blight on the Asians.
The only spraying they get is the early season Neem Oil sprays. One early before the spring awakening and another before the buds open. That's all the care they get except for thining which makes larger fruit.