Trip, Slip and Fall Hazard: Hidden Depressions in Grade

Successful landscapes require: Proper grading, drainage and amended soil. An automatic irrigation system achieving 100% head to head coverage. Properly installed, high quality plant material. Each of these functions may require a specific type component, installed at a specific height or location to reduce the potential of creating a site hazard that may result in an accident.  In commercial applications, landscape plans usually include details and specifications dictating type of product and how it should be installed. Many common landscape products may be improperly installed including: Pop up heads may be incorrectly set to grade against a sidewalk. Valve or … Read More

A Horticulturists Local Neighborhood Walk

I took my usual walk through local neighborhoods surrounding Balboa Park in San Diego.  A glorious spring day, I couldn’t help but marvel at the beautiful ornamental landscape trees, shrubs and vines in bloom everywhere!  Very uplifting, glad plants are not affected by the virus!

Arborist Online Learning Opportunities in the Covid Era

In a recent blog, I discussed using online media for a site online site inspection involving a Torrey pine tree root conflict with adjacent asphalt paving.  That marked the first time I used an online media tool rather than being physically present at the site.  My client and I used Facetime to conduct the real time inspection. As the restrictions ease, I believe the use of online media such as Zoom, Hangouts, Facetime etc will increase.  I have already presented this concept to a legal client in Northern California concerning an irrigation inspection.  Do I really need to fly from San Diego … Read More

Online Site Inspections with Corona Virus: A New Paradigm?

The corona virus and resulting stay at home order has prevented me from scheduling or attending site inspections.  I require site inspection for most forms of consulting work, including as a consulting arborist or expert witness. Tree failures, health and risk assessment Tree inventories Tree and nursery appraisals Tree roots and infrastructure damage. Landscape appurtenances creating trip and fall hazard. Obscured landscape hazards, grade changes Irrigation operation, maintenance issues A client wanted me to attend and observe asphalt paving taking place adjacent to an 80 year old Torrey Pine.  I had previously consulted on preserving this tree during construction on … Read More

Old Growth Redwood Destruction Continues

I read an L.A. Times article discussing ongoing logging of redwoods in Humboldt County.  In a battle spanning several generations, tree sitters and eco-activists are putting their bodies on limbs in redwood tree tops to prevent logging. This is not the first time tree activists have climbed hundreds of feet up old growth redwoods to prevent logging the tree and surrounding trees.  It reminded me of a remarkable novel I read called “The Overstory” by Richard Powers.  The novel is about people and their interaction with and the affect specific trees and forests. It primarily focuses on loss of old … Read More

Joshua Tree Extinction by End of Century?

I just read an article in the Los Angeles Times about a potential listing of the Joshua tree as an endangered species.  The western Joshua tree, Yucca brevifolia, is one of two genetically distinct species that occur in California.  It range extends from Joshua Tree national park westward along the northern slope of the San Bernardino and San Gabriel mountains, northward along the eastern flank of the Sierra Nevada and eastward to Death Valley. Approximately 40% of the western tree range is on private land, the eastern range is centered in the Mojave National Preserve and eastward into Nevada. After decades … Read More

California Olive Trees Dying from Exotic Pest Infestation

With so many trees dying in natural and landscape settings, I’ve observed a disturbing trend throughout San Diego, and I assume most of the state.  Property owners allowing dead and declining trees, palms and shrubs to remain in place.  The problem with this practice, aside from aesthetics, is the dead plant may serve as a vector, whereby flying insects such as beetles, leaf hoppers, spittle bugs etc. may spread the disease to other uninfected trees. Over the past decade, drought and climate change has taken a toll on millions of trees throughout California.  Drought weakened trees succumb to secondary invaders … Read More

RDCS LLC Hired as Consulting Arborist by PCL Construction for UCSD Triton Pavilion Project

PCL Construction, is the general contractor managing the Triton Pavilion project at UC San Diego.  PCL Triton Pavilion.  The Triton Pavilion project includes developing a new, large student center and be a future major stop for the San Diego trolley Blue Line.  The trolley Blue line expansion to be completed in 2021 will connect downtown San Diego to University City. Union Tribune Article To determine how to manage existing campus trees in conflict with future construction, PCL hired Rappoport Development Consulting Services LLC as a sub-consultant providing arboricultural consulting services.  Mr. Jeremy Rappoport, President of RDCS, will assess and tag … Read More

Tree, Plant and Landscape Appraisals for Damages Caused by California Wildfires

Once again, Californian’s throughout the state continue to suffer devastating losses due to wildfires.  From the southland to northern California and the foothills of the sierra’s, the Woolsey, Camp, Hill and seemingly countless other fires have ravaged our state.  From October through December, Santa Ana winds fan destructive blazes that grow in size with each passing year. During recovery efforts, insurers and attorneys require a tree or landscape appraisal to settle a client claim.  In the past year, RDCS  provided appraisals for damages caused by  the Thomas fire in Ventura and Santa Barbara counties, the Lilac fire in San Diego … Read More

The Benefits of the ANSI A300 Tree Care Standards for Tree Related Lawsuits

Guy + Chainsaw – Tree = Potential Lawsuit vs ANSI A300 Tree Care Performance Standards Background Tree care professionals contracting for services are frequently members of the Tree Care Industry Association, (TCIA). The International Society of Arboriculture, (ISA), administers various types of arborist certification programs, including certified arborist or certified tree worker climber. The American Society of Consulting Arborist  offers arborists training and testing to become a registered consulting arborist, (RCA). These associations provide industry standards and best management practices for members to adopt into in their own practice. In California, C-27 landscape contractors and D-49 tree service contractors are … Read More