Stumper
One Man Band
There are references all over the place about the dangers of pruning fruit trees when the temps are sub-freezing. Is there any SCIENTIFIC literature about the subject? I run into the unsubstanciated claims everywhere. Most of the local growers have read this stuff so I try to accommodate them and stay home till the temps are above freezing. My personal observations don't substantiate the "common knowledge" but since I seldom prune fruit trees when temps are below freezing.......... I'd like to have some documentation. if there is evidence that below 32 is a serious risk then fine BUT if there is no science or,even better, there is science that explains that cold matters but not till x degrees below zero it would help my scheduling.