Climatic stress events, such as extreme temperatures and prolonged droughts, are increasingly affecting tree growth and ...
The best times to prune river birch are during late spring, late fall and winter. Avoid pruning in the spring before the first leaves emerge, which will cause the tree to lose sap. Fresh pruning ...
A study by the National Land Survey of Finland and the University of Helsinki has revealed significant individual differences ...
The study focused on silver birch trees and found that species richness and competitive pressure for light in the immediate vicinity influenced the timing of spring leaf burst, while water ...