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  1. D

    Crushed when trunk split on flipline

    This (or terminating both lanyard ends on the same side D) would avoid the problem and should be taught as standard practice. This is definitely going in my rulebook!
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    Crushed when trunk split on flipline

    I've heard a few ideas on how to avoid this since it happened, but I think more awareness and standard practices are warranted: I was dropping a cherry tree a few years ago. It had a large lateral branch pulling it the opposite direction from where I wanted it to go, so I gaffed up with a...
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    Triclopyr basal application (for ailanthus control)

    Ah ha: I thought because triclopyr itself is so volatile, and mixes only with oils, that it would penetrate on its own. Regardless, I just found this Penn State study which concluded that dilutions of Garlon 4 down to 5% were as effective as "traditional 20-30%" dilutions, so evidently I can...
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    Triclopyr basal application (for ailanthus control)

    Garlon 4, straight undiluted.
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    Triclopyr basal application (for ailanthus control)

    I've been experimenting with ways to control ailanthus, which is terribly invasive in parts of land I manage. Previously I would hack-and-spray or cut and cover stumps with 7% glyphosate to kill the roots and prevent reemergence. Another arborist, seeing some of the infestation, suggested...
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    Cutting mature hemlock to grow more dense

    Yeah, I used a very aggressive insecticide a few years ago for the adelgids and fortunately haven't seen those since. I don't mind pruning. How hard back can you cut the main branches before they will fail to sprout?
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    Cutting mature hemlock to grow more dense

    I'm in southeast PA, and I have a row of mature (20+ years old) hemlocks that I want to train to form more of a privacy screen. The branches have gotten too long so they are overhanging the lawn, and lower branches have naturally died off. Is there any way to prune or cut these to stimulate...
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