In the Delta state you are sound asleep. Delta waves are the slowest of all five brainwave frequencies and range between 0-4 Hz. Slow Wave Sleep or SWS, is the deepest of sleep states and it plays a vital role in health and well being. During this phase of the sleep cycle, the brain begins producing very slow, large Delta waves.
Pruning Tips. 1  First dormant season (a year after you plant the tree): Remove the central leader and direct the tree growth toward three or four strong scaffolds. 2  Second dormant season: Prune away fast-growing new shoots but leave twig growth, which will be the fruit-bearing wood (on most peach trees).
How and When to Prune Fruit Trees. Question. I am confused about my fruit trees. The past two years I've pruned my apple,peach,pear and plum trees right after the dead of winter. But we only seem to have had one or two days OF dead winter this season, and I'm concerned that the trees might not go fully dormant.