Topping Bradford Pears

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4.18 heading: The reduction of a shoot, stem or branch back to a bud or to a lateral branch not large enough to assume the terminal role. ANSI A300 part one. So in essence, "endo" cormic reduction. Why then does it's companion publication, ISA pruning BMP, call such pruning cuts "topping" and "should not be used" on page 24? These two publications should each support the other but they are troubled siblings.

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Yes, that is an issue. A300 is rightly conservative about change, but in this case ISA seems even more so. Look to the wording there on shrubs for a similar issue, where stuff gets repeated despite an obvious (to many) need for change.

Why? don't ask me; I'm only the piano player. Maybe the authors or publishers know.
There is room for a lot more "should"s than the 1/3 criterion imo, but they have to be well founded.
 
topping sucks period. if you have to top something then you shouldn't call yourself an arborist. any good arborist can come up with a creative way to reduce a branch without using heading cuts. i dont think we are talking landscaping headges here? so dont make the tree a headge!
 

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