Snell Tree Experts was recently recognized by the TCIA as one of the "Top-20 Accredited Tree Care Companies" in the nation!

Glossary of Plant Health Care (PHC) Terms​​

Air spading: Using a compressed air-powered tool to help in excavation, soil management, and tree health-care within a tree’s root zone.

Deep-root aeration: Making holes or trenches in the soil around the tree and filling it with organic matter.

Fertilization: Adding supplemental nutrients (chemical elements) required for normal growth and development.

Horticultural oil treatment: Applying pesticides that control insects such as scale, mites, and some plant diseases.

Pesticide application spray: A type of spot treatment with pesticides applied directly to the pests.

Plant growth regulator: Using chemicals to modify plant growth such as increasing branching, suppressing shoot growth, increasing return bloom, removing excess fruit, or altering fruit maturity.

Root barrier: Using chemical and/or mechanical guides that redirect tree roots down and away from hardscapes, preventing costly root damage.

Root collar excavation: Removing soil or organic matter from around the base of the tree to uncover root issues such as girdling roots.

Soil invigoration: Breaking up soil compaction and adding organic matter (compost) to the existing soil without removing it.

Soil sampling: A chemical procedure used to determine the supply and availability of a particular plant nutrient in soil.

Systemic drenching: Pouring a concentrated systemic insecticide over the soil of an ornamental plant such as a tree or shrub to control sucking pests like aphids, emerald ash borers, scale, mealy bugs, etc.

Trunk injections: A targeted delivery of pesticides, insecticides, nutrients, or other plant protection materials into the stem or trunk of woody plants as an alternative to spraying or soil drenching.

Vertical mulching: Creating vertical holes within a tree’s root zone to loosen and aerate the soil.