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Old 06-25-2013, 11:06 PM
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Think Green Think Green is offline
LawnSite Silver Member
Join Date: Jan 2009
Location: Arkansas--Mississippi flood plains
Posts: 2,742
These shapes first lead me to think of some wire used during the growing process or for bracing. However, I see a nub in one appears to have a canker disorder from improper pruning and disease set in. Canker can grow in irregular and regular patterns. I find it obvious that the new growth or stress sprouts is coming back in under the cankered areas. The sap flow is rendered useless as the cambium layer is destroyed. I am curious also about frost cracking. In Ohio, what was the weather patterns like a month or more in the spring? Did your temperatures go back and forth? These trees have sensitive barks and buds.
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