How do I identify hazardous root problems?
Written by
Julia Anderson
Reviewed by
Prof. Charles Hartman, Ph.D.Identifying hazardous root problems involves identifying critical clues that reflect underground symptoms of distress. Visible roots on the surface that lift pavement indicate restricted room for growth. Soil cracks at the base of trunks indicate root heaving or decay. Crown thinning indicates failure of food transference. Branch dieback without apparent cause is often due to root activity.
Surface Indicators
- Pavement lifting indicates root confinement pressure
- Soil cracking near trunks suggests root plate movement
- Exposed girdling roots constricting trunk flare
Tree Health Signals
- Premature leaf drop showing nutrient deficiency
- Dieback starting at branch tips progressing downward
- Epicormic sprouts on trunk signaling stress response
Soil heaving during frost and thaw cycles indicates serious root plate instability. This is caused by roots becoming unstable and unable to anchor themselves properly in compacted soil. Frost causes the shallow roots to be pushed upward, resulting in dangerous tension. Before the next winter, a professional evaluation is necessary to avoid tree failure.
Ailment of trunk flare constriction demands prompt attention. Girdling roots circle the tree base, cutting off the food supply to the tree. This strangles trees over the years. Air spade excavation uncovers hidden problems. Certified arborists remove offending roots, leaving trees unharmed.
Unexplained crown dieback usually begins at branch tips and progresses downward as root dysfunction continues. This varies from insect damage, which occurs randomly. A soil test seeks out pH type imbalances and soil contamination. Aeration of the root zone can be quite successful in reversing mild to moderate decline.
When construction is planned near a tree, it is always best to consult with ISA-licensed arborists. They will map out the critical root zones using some air excavation tools. They will also recommend barriers before construction begins. Professional consulting will prevent 80% of tree failures related to root zone disturbances.
Read the full article: 7 Essential Facts About Tree Root Systems
