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Soil Test Tells
What Soil Needs
Help trees stay healthy. Before you fertilize or consider treatments for micro-element problems, have a soil test done. Your tree may require soil acidification before fertilization, or treatment for microelement problems. Fertilizers add elements essential for healthy growth; they are not tree food. Trees get their energy from the sun. Leaves and needles trap energy in a molecule of sugar. Sugar is tree food.
Keep leaves and needles healthy by timely treatments so trees can get their food. Keep soils free of compaction so roots can get water and essential elements. Never over fertilize. It can injure your tree.
Some insects and micro-organisms do start tree problems. When in doubt about what to do, contact a horticulturist with the Virginia Cooperative Extension Service or a professional arborist.
(Dr. Diane Relf is a horticulture specialist with Virginia Cooperative Extension and is a member of the faculty of Virginia Tech.)
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