Pine trees see the survival time.
The survival time of a pine tree is not fixed and depends on many factors. The preliminary judgment is based on the growth of pine trees and many places of pine trees. Usually, even if a pine tree dies, its needles will remain green for a period of time, which brings some trouble to judge its survival.
The method of judging the survival of pine trees 1, observing the bud mouth.
When pine trees grow to a certain stage, they will grow some tender buds. If there are no buds, it means that there is something wrong with the growth of pine trees. The normally growing pine buds are full and have a certain hardness. If the pine buds are found to be dry, there will be no feeling of air bags when you pinch them with your hands, indicating that the pine trees have not survived.
2. Observation needle
Pine needles can well judge whether it is alive or not. The cross section of normal growing pine needles is semicircle or more. If the cross section of pine needles grows into a crescent shape, it means that pine needles are not in stock, the surviving pine needles are light green, and the non-surviving pine needles are a little yellow.
Step 3 observe the branchlets
You can also judge the survival of pine trees by observing their twigs. The shoots of pine trees that grow normally and healthily are more energetic and look full and powerful. However, if the twigs of a pine tree are wrinkled and look weak, it means that the growth of the tree is not only problematic, but the branches and leaves are the most intuitive expression of survival.