Plant Health Care Is a Monitoring Loop
Use a monitoring loop to connect symptoms, site conditions, and preventive care.
The useful move is to make the invisible judgement visible before the crew acts. Plant Health Care is not a one-time diagnosis followed by a product. ISA describes PHC as routine monitoring, preventive treatment, and a strong working relationship between arborist and owner. That makes it close to a PDCA loop: plan what to observe, do the inspection or treatment, check the response, and adjust the next action. The mechanism is that tree symptoms are often nonspecific. Yellowing leaves can point to water stress, root damage, nutrient imbalance, girdling roots, soil compaction, pests, or several factors at once. A loop…
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