Brain disorders can also have an effect on the display of delta waves. Parkinson's disease, schizophrenia, and narcolepsy are all characterized by changes in delta wave activity. Some drugs and chemicals have been shown to impact the brain's delta waves.
Pruning advanced ornamental trees. Now's the time... Generally speaking an ornamental tree is one that is grown for its decorative looks and not for food. Winter is the perfect time to prune deciduous ornamental trees, as their structures are dormant. Inside the tree though, important processes are underway.
Most gardeners annually prune hedges, but. they use pruning haphazardly elsewhere. Most often it is. performed on ornamentals only when a shrub or tree begins. to encroach on its neighbors, a walkway or a building. Pruning is a way to increase flowering of shrubs and. make barren trees fruitful. If carried out correctly, it eventu-. ally will. However, years of neglect cannot be corrected in.