Principles and methods for pruning tree branches

The principles of pruning tree branches include: first look, second cut, and third check principles. The methods of pruning tree branches include: cutting late instead of early, cutting thick instead of thin, cutting fat instead of thin, inspecting before pruning, checking whether the treatment is reasonable after pruning, using flexible and firm tools to avoid accidents during pruning, not tearing the bark when wiping buds and removing tillers, and dealing with diseased branches in a timely manner after pruning.

Cutting late, not early: Some tree species should be able to survive the winter, but there are two situations that can lead to winter failure: poor tree species and too thin branches.

Trim the branches that are too thin, regardless of the type of tree. In winter, the branches will wither.

Cutting fertilizer instead of thinning: After cutting the branches short, the branches do not germinate for a long time, and the lateral branches do not grow vigorously after germination, due to insufficient fertilizer.

Before pruning: Independent branch pruning should follow the principle of first inspection, second cutting, and third inspection. Before pruning, observe the growth status, branch distribution, and crown shape of the tree. Especially for perennial branches, careful consideration should be given before pruning. When pruning, cut from top to bottom, from inside to outside, first thick and then thin. From pruning, cut off dead branches, dense branches, overlapping branches, etc., and cut the remaining branches short. Leave the cut buds in the direction where the branches grow.

After pruning, check if the treatment is reasonable: When it is necessary to shrink pruning, first deal with the large, medium, and last small branches. After pruning, check if the treatment is reasonable, confirm if there are any omissions or incorrect cuts, and then correct or trim.

Flexible and firm pruning tools: During pruning, all tools and machines must be flexible and firm to avoid accidents. When pruning roadside trees, pay attention to high-voltage lines to prevent large branches from being sawed off and damaging pedestrians and vehicles.

When removing sprouts and tillers, do not tear the bark: tear the bark to avoid affecting the growth of the tree.

After pruning diseased branches, timely treatment should be carried out: the incision should be sharp, and the diseased branches should be pruned in a timely manner. Finally, other branches should be pruned to prevent cross infection. The pruned diseased and diseased branches should be quickly collected and burned.