When Should You Consider PiCUS Testing? Signs and Situations That Call for a Closer Look

PiCUS testing is a powerful diagnostic tool for assessing a tree’s internal structure and detecting issues that may not be visible from the outside. Knowing when to consider PiCUS testing can make a significant difference in maintaining tree health and safety on your property. This guide covers the key signs and scenarios that suggest PiCUS testing may be necessary.

What is PiCUS Testing?

PiCUS testing is a noninvasive method for evaluating a tree’s internal stability. By sending sound waves or using sonic tomography, the test identifies areas of decay, hollowing, or structural weakness within the trunk. This diagnostic approach is essential for preserving trees safely and sustainably, particularly those close to structures or in high-traffic areas.

Signs That a Tree May Need PiCUS Testing

1. Visible Decay or Fungal Growth
   • Decay is often visible on the surface, with signs such as fungal growth, cavities, or dead branches. If you notice these indicators, it could mean deeper internal issues that PiCUS testing can help reveal.
2. Unusual Lean or Asymmetrical Growth
   • A tree leaning more than usual or showing uneven growth could be compensating for structural weaknesses. PiCUS testing can help assess whether this lean poses a risk.
3. Proximity to Buildings or High-Traffic Areas
   • Trees near buildings, pathways, or playgrounds may require extra caution. Regular PiCUS testing can detect any internal issues early, reducing the risk of falling limbs or trunk failure.
4. Significant Cracks or Splits
   • Large cracks, splits, or damaged bark can indicate structural instability. PiCUS testing provides a clearer picture of the internal damage, helping you make informed decisions about tree care or removal.

Situations That May Call for PiCUS Testing

1. Post-Storm Assessments
   • Trees can be structurally compromised after severe weather, even if they show no visible damage. High winds or heavy rain can create internal weaknesses, making PiCUS testing a wise choice for post-storm inspections.
2. Routine Health Checks for High-Value Trees
   • Landmark or heritage trees and those of significant value on a property benefit from routine PiCUS testing. This helps ensure they remain safe and healthy, avoiding unexpected issues that could result in removal.
3. Before Major Landscaping or Construction Projects
   • If you plan to make structural changes to the landscape around a mature tree, a PiCUS test can provide insight into its condition and ensure it can withstand the potential stress of nearby construction.

Why PiCUS Testing Matters for Property Managers and Landowners

For property managers and landowners, PiCUS testing is a proactive way to ensure the safety and longevity of trees. By identifying hidden issues early, PiCUS testing can prevent costly and potentially dangerous situations, such as sudden branch drop or tree failure. Regular assessments, especially for trees in high-risk areas, support better planning and maintenance, offering peace of mind.

Conclusion

Understanding when to consider PiCUS testing is essential for anyone responsible for tree care, especially on properties with high-value or high-traffic areas. By recognising the signs and knowing when to conduct these assessments, you can more effectively protect your trees and the surrounding environment.