Your pears will only get so tall, too tall for most of us, so we control the size by pruning. This is a job that will be needed as long as we want the tree kept to OUR size. Al

Al thank you very much,
it means i will be busy all my life,
i pruned my trees today, they grew over 2 feet since i pruned them last time, this year,
i prefer short trees but they somehow just want to grow although they are supposed to be dwarf trees,