How to care for black pine seedlings:

Pruning: It needs to be pruned again every winter to adjust its shape and cut off some branches that are not growing well. ; The buds need to be picked once every spring in order to promote the growth of side branches.

Disease: If the branches and leaves of the plant turn yellow, it may be infected with blight disease. The diseased leaves need to be removed and destroyed in time, and then sprayed with thiophanate-methyl diluent.

Insect pests: During the growth period, plants are easily infected by pine aphids. They will absorb the sap of the plants and affect the growth of the plants. After an insect infestation is discovered, it is necessary to kill the insect as soon as possible, and you can use Bordeaux liquid for treatment.