Did you recently join the GardenWeb to post your agenda? You don't identify yourself as living in New England and it makes no sense to me that you have singled out this species to be the reason for your allergy problems. Birch, oak, maple, ash, juniper and pine are far more responsible for springtime allergies due to their greater size and natural abundance. There are many reasons to dislike callery pears but pollen production isn't one of them. You seem to have some hidden agenda with this rant of yours. Please post elsewhere.