Fireblight is bacterial yes not fungal. That is bad but they are the experts. We better quit looking at these articles! Here is Kansas I just do what I do to get pears. My feelings are they don’t know like I said originally we can’t know longevity there are many variables. If we keep the trees healthy they live a long time. There was a Pear tree producing here that the settlers planted. Cut it out when I expanded the pond. It wasn’t very tall so i do wonder what the experts would say about that. We answer this question occasionally on pear rootstocks The hunt for seedling pears - #9 by clarkinks and A shoutout for assistance please: tree records and The modernization of flowering pears - #3 by tonyOmahaz5
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