Our California Davey Resource Group, Inc. (DRG) office works with municipalities, businesses, and a variety of organizations to manage and protect the vital ecosystems known as urban forests that help filter water and air, control stormwater, conserve energy and provide animal habitats.
Our team specializes in the nuanced needs of the Bay Area and Northern California surrounding areas. The staff of certified experts is ready to help you reach your goals.
Tree risk assessment reports, tree protection zone calculations, mapping of critical root zones and trees to correspond with project plans, soil analyses, on-site monitoring, and tree preservation action plans.
Our team of experts can examine and document tree health, assess the value of individual trees or overall benefits provided by trees in a neighborhood, city, or state, and spot potential safety risks.
Customized and turnkey solutions for master plans, tree inventories, data collection and analyses, invasive species mitigation, species selection, planting programs, and maintenance schedules.
With high-resolution GIS data, we can effectively classify and assess a community’s tree canopy for growth modeling, priority tree planting and planning, and the management of energy conservation, stormwater, and water resource initiatives.
With local offices across the country, our team of experts can provide the guidance, analysis, and quality service you need to manage the natural resources on your property. From wetlands and streams to stormwater management and tree inventories, we offer turn-key solutions for clients nationwide.
Have your trees grown to a size that makes you nervous for your safety? Tree risk assessments performed by certified arborists can help gauge the safety of a tree on your property with these three levels of detail:
Davey now uses sonic tomography technology for decay detection in trees. The tool utilizes sound waves to detect decay or cavities inside aboveground woody tree parts such as trunk and scaffold limbs. Read more about how it works.
The results of your tree assessment are typically provided in an arborist report suitable for permit applications in your municipality.
TreeKeeper is a user-friendly, versatile tool developed by Davey Resource Group that can easily manage and access your tree inventory data from any location with an internet connection.
TreeKeeper continues to support and provide tree inventory solutions for:
Invasive pests can infest and damage large swaths of tree species, causing tree fatalities and long-term impacts on tree species diversity. Davey Resource Group works closely with state and federal environmental agencies to control and eradicate invasive pests in infested areas.
Common invasive species (pests) in the Bay Area, Northern California, and the surrounding areas include:
In March 2021, DRG's Dr. Rachel Sitz contributed to research about the impact of thousand cankers disease on walnut trees.
