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Attila Soos
Join Date: Jan-2002
Location: Los Angeles, California
Country: USA
Posts: 2,027
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The best time is always the early part of growing season. This gives the tree more time to re-grow the lost foliage. I have removed as much as 2/3rd of the crown during spring, with no problems. The deeper you go into the season, the less you should remove. Halfway through the season I would remove about half of the crown if I have to.
Since we are approaching the end of the season, there is no point of removing anything. There is nothing to gain, only weaken the tree since the growth will stop in a few weeks.
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