Crown thinning Thinning is the most common pruning done on mature trees. It increases the penetration of sunlight and air circulation. It can also reduce tension in certain limbs caused by gravity, wind, ice, or snow. Pruning is the most common tree maintenance procedure. Unlike forest trees, landscape trees need a higher level of care to maintain structural integrity and aesthetics.
Pruning must be done with a knowledge of tree biology, as inadequate pruning can cause lasting damage or shorten the lifespan of the tree. While forest trees grow quite well with natural pruning alone, garden trees require a higher level of care to maintain their safety and aesthetics. Pruning should be done taking into account how the tree responds to each cut. Improper pruning can cause damage that will last the tree's life, or worse, shorten the lifespan of the tree. Removal, also referred to as “felling trees”, is rarely justified in the landscape and often results in the appearance of several undesirable trunks or heels.
When pruning under power lines or cleaning a tree so it doesn't interfere with a structure, always re-prune it to a fork where there is a living branch of at least half the diameter of the branch to be removed. This technique is called “fall”. of the crotches”. After several months, prune off any sprouts that grow in response to the cut.
Never put your hat on a garden tree by cutting off all its branches so that they are at an arbitrary length. This type of pruning has no place in horticulture and often kills the tree. Minimize the need to prune for felling by buying trees that have been grown in a nursery to street tree specifications. According to the regulations of the Occupational Safety and Health Administration of the Department of Labor and the U.S. National Standards Institute, only tree trimmers specially trained to cut lines can prune trees near electrified lines carrying more than 750 volts.
Utility companies hire professional tree maintenance contractors to prune periodically to specific vacant spaces...
