Meet Your West Coast Plant Healthcare Expert

Wister Dorta

California Regional Technical Manager Contact: 310.995.2098

Wister Dorta is our California Regional Technical Manager. He initially moved to Santa Monica to work on pressing tree planting, tree preservation and drought issues. Dorta has a diversified arboriculture background, is well known throughout the West Coast ISA and has spoken at multiple conferences. In addition to a degree in Environmental and Forest Biology, he holds a Master’s Degree in Environmental Management. Dorta is a Certified Arborist, Qualified Tree Risk Assessor, and is fluent in Spanish. Wister enjoys discovering new ways to contribute to continued greening.

Have you seen these pests near your home?

These pests have been causing destruction throughout the Northwest. Arborjet offers environmentally responsible tree injection treatments that help to combat Invasive Shot Hole Borer, Pine Bark Beetle, Chlorosis, and more.

Don’t wait, the time to treat is now. Find a Tree Care Service Provider>

Invasive Shot Hole Borers

Polyphagous Shot Hole Borer (PSHB) is an exotic ambrosia beetle that was first detected in 2003 in Southern California. It is currently found in L.A., Orange, San Bernardino, western Riverside, and San Diego Counties.

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Pine Bark Beetles

There are numerous species of Ips and Dendroctonus, bark beetles, that infest conifers throughout North America. Adults tunnel through the bark, mate and lay eggs in the phloem (inner bark).

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This condition, if allowed to progress, will cause slow growth, leaf loss, and eventually tree death. Chlorosis is often caused by deficiencies of the micro-elements iron and manganese, and is particularly prevalent in oak.

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