Tree Diseases

Lab Testing of Tree Leaves to Help Solve Tree Health Issues

Dave Kidd, ISA Certified Arborist | Jul 03, 2026

Supporting image for blog post: Lab Testing of Tree Leaves to Help Solve Tree Health Issues

Mouse ear disorder causing leaf curling on birch tree.

Leaf foliar analysis is a service offered by Owen Tree Service, aimed at ensuring the health and vitality of trees and shrubs. While many tree ailments can be identified by field diagnosis, there are situations where lab testing can shed additional information that can’t be obtained by simply looking at a leaf.

This process involves analyzing the nutrient content of leaves, in combination with a soil analysis, to provide insights into the overall health of the plant. By identifying nutrient deficiencies or imbalances, Owen Tree Service's ISA Certified Arborists can recommend precise fertilization and plant care strategies tailored to each tree's needs.

The foliar analysis process begins with systematic sampling of healthy, mature leaves from the tree. These leaf samples, along with samples of the soil underneath the tree, are then sent to specialized laboratories for detailed nutrient analysis. The results help in diagnosing issues such as nutrient deficiencies, excesses, or uptake problems that may not be apparent through soil analysis alone.

This method integrates environmental factors like soil quality, weather conditions, and water availability, offering a comprehensive view of the tree's health.

Owen Tree Service uses this data to design a customized maintenance plan that may include fertilization, biostimulant additives, trunk injections or sulfur treatments to lower soil pH. The goal is to ensure optimal growth and resistance against diseases or environmental stressors.

Our expertise in foliar analysis reflects our commitment to providing top-notch tree care services across southeast Michigan. This service is part of our broader portfolio of tree care services, which includes tree pruning, pest control, and risk assessment, all aimed at maintaining healthy and thriving landscape.

With over 40 years of experience and a dedication to excellence, Owen Tree Service continues to be a trusted partner for tree care in Michigan. Our foliar analysis service exemplifies our scientific approach to enhancing tree health and landscape beauty.

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