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.
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).
Chlorosis
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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"I’ve been injecting a 70“ ash tree on the campus of Miami University since 2014. It has typically taken three long mornings to coax the needed volume of TREE-äge® into this tree. Using R10 for the first time, the entire treatment for 2020 was completed in 2.5 hours, in mid-August! R10 is revolutionary for my business - reading about R10 is one thing, an experience such as this quite another. I’ve instantly become a convert.”
– Mark Gilmore,
Arbor Medicine LLC & Audubon Ash Tree Project
