A tree communicates internally by the movement of chemicals (a human communicates internally by electromagnetic signals). For instance, when the crown of a tree is proportionately larger than the root mass, the tree will send a chemical (called auxin) from the leaves to the roots. This chemical carries a signal which causes the plant to accelerate its root production. It is the same with bud opening, leaf cell elongation, wood formation and so on – different chemicals carry different signals. All these chemicals are called growth regulators.
Growth regulators are proven effective in restoring a tree in decline to good health.
Growth regulators can be used to help a tree be healthier and live longer.
Using Growth Regulators:
- When your tree has outgrown its space
- When you want your tree to be more dense
- When limbs and branches are breaking
- When you want to eliminate fruit or seed production
- When a tree is suffering from stress
The Tree Doctor can apply a growth regulator to achieve the desired effect.
Slowing Tree Growth:
- Our most commonly used growth regulator is Cambistat
- Cambistat (paclobutrizol) can be injected into the soil to slow tree growth dramatically
- The material is injected into the soil around the trunk of the tree usually in early spring
- Tree resources are diverted from twig and leaf growth to root production and thickening of cell walls
- Result is (a) increased drought tolerance, (b) increased resistance to insect and disease attacks
- Tree should still be fertilized