The Company

I.V. Tree Care was started in 1999 by Certified Arborist Olen Sharron after retiring from the USDA. Olen was dedicated to saving Hemlock trees from the deadly Hemlock Woolly Adelgid (HWA), an imported insect that has killed millions of trees. Unfortunately, Olen passed away in August 2007 after a valiant battle with cancer.


In February 2008,  Virginia Tech graduate (MS Horticulture) and ISA Certified Arborist Jim May took over the business and has continued to save thousands of Hemlocks in Southwest Virginia.


Jim has even expanded the business to cover many more insect and disease problems, including the Emerald Ash Borer (EAB), Scale insects, Lacebugs, Aphids, Fall webworm and other biting and sucking insects. Diseases controlled by I.V. Tree Care include Bacterial Leaf Scorch (BLS), Anthracnose, Dutch Elm Disease (DED) and others.


Jim constantly continues to learn about new insect and disease problems through seminars, webinars and other Certified Arborists. Maintaining his CEU's to keep up with his certifications as an ISA Certified Arborist, Certified Tree Risk Assessor, Virginia Certified Horticulturist and Virginia Certified Pesticide Applicator is another full-time job.


Our Credentials
Jim May

Jim May lived in the New River Valley from 1980 until 2016, when he moved to Richmond, VA. He was educated at Virginia Tech where he earned a Master's Degree in Horticulture. Experienced in the nursery industry and a former Extension Agent, he is also a(n):

  • ISA Certified Arborist,

  • Virginia Certified Pesticide Applicator

  • Virginia Certified Horticulturist and

  • Certified Tree Risk Assessor.


His specialty is plant health care (PHC), including:

  • diagnosing and correcting

    • insect infestations

    • diseases (fungal & bacterial)

    • nutritional problems.


Jim also has extensive knowledge in:

  • tree and shrub identification

  • proper pruning techniques

  • tree and shrub placement

  • planting and care of young trees

  • composting

  • soils


The Science of Tree Injections

Tree injections have been used for over 50 years as a method of:

  • insect control

  • fungal control and

  • adding nutrients to trees.


The first method, developed by J.J. Mauget in the early 1960's, involved:

  • drilling small holes in trees into the xylem, the water and nutrient carrying protion of the tree.

  • inserting tubes into the holes and

  • placing capsules of chemicals on the tubes

  • pressurizing the capsules and allowing uptake into the xylem.


While that method is still employed today, newer technologies have added to the arborists' tool kit. Now there are:

  • injection kits with multiple ports to inject more quickly and efficiently and

  • portable hand-held injectors that do one site at a time.


Fungicides and some micro-nutrients, such as Iron, need to be injected directly into the xylem of the tree. This area transports water and nutrients upward to the leaves.


Injections of fertilizers and systemic insecticides into the soil and root zone around trees is also very effective and widely used. The chemical is then taken up by the tree's roots and transported throughout the branches and leaves. Fall fertilization is especially effective if done by soil injection.


Another way to introduce systemic insecticides is called bark banding, where a systemic chemical, usually mixed with a surfactant, is sprayed onto the bark where it is absorbed and transported throughout the tree.

Contact Us

Just fill out this form and I'll get back with you as soon as I can, or if you prefer, text or call me at (540) 320-4911.

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    We are now accepting major credit cards in addition to cash and checks for services. We hope this will allow you to budget your tree and shrub health needs more easily.