Poplar trees that are two or three years old generally do not need pruning. This stage is dominated by growth, and it is enough to control the plant type at ordinary times. If there are vigorous side branches, they can be cut short to avoid the influence of excessive growth on the overall growth.

Poplar trees are usually pruned after five years, mainly to control the plant type and keep the plants beautiful. Tools need to be disinfected during pruning to avoid wound infection after pruning.

Extended data:

The purpose of pruning is to make the trunk of poplar prominent and the lateral branches evenly distributed, so as to make poplar grow healthily and rapidly.

1, poplars planted for 2-3 years are generally not pruned, mainly for shaping and pruning to control the growth of competitive branches, but the "overlord branches" that affect the growth of poplars must be pruned in winter;

2, 4 ~ 5-year-old poplar, repair the crown in winter, balance the tree potential, and cut off all the side branches above 2/3 of the crown;

3.6-8-year-old poplars should be trimmed to1/2 of tree height;

4. When pruning 9-year-old poplars in winter, the crown should be kept equal to 65,438+0/3 of the tree height until the wood is cut down. While doing a good job of pruning every winter, we should also do a good job of cleaning, that is, removing branches that germinated in the past due to improper pruning, as well as their pests and dead branches.