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Articles by Janet Hartin
Landscape Architect
Design Elements are Everywhere at TLE! Hardscapes, Lighting, Outdoor Living, Fire Features, Pool Contractors, Planters, Soils, Irrigation, Plant Material, Seminars, New Technologies and So Much More . . .
In the valley, 'heat islands' of asphalt and fake lawn reach 170 degrees. What you can do
As a resident of the Coachella Valley for 32 years and a University of California Agriculture and Natural Resources academic specializing in horticulture, I’m asking for your help. Please rethink the use of asphalt, black (dyed) mulch, and synthetic lawns in our desert communities. They are superheating what already are extreme urban heat islands.
Synthetic turf, dark mulch and asphalt surfaces are superheating our inland cities
an plants help cool our urban heat islands and mitigate impacts of climate change in our inland cities? I've been interested in measuring the temperatures of living and non-living surfaces for some time. Preliminary results are in! Use of dark asphalt, synthetic turf, and dark colored mulches are superheating our inland and desert cities.
Caring for trees in a drought
During the drought, your trees should come first. Because many well-maintained trees don’t reach their prime until their fourth or fifth decade, it’s important to keep them watered during the drought and under imposed water restrictions. Trees are our most precious landscape resource and their benefits multiply as they age. They enhance habitat and biodiversity, cool urban heat islands, reduce energy usage and costs, and store carbon dioxide emitted from fossil fuels.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
What is killing the native oaks of Southern California?
The Goldspotted Oak Borer, or GSOB, is an invasive beetle that is killing native oaks in several areas of Southern California. Susceptible oaks include coast live oak, canyon live oak, and California black oak. In many cases, GSOB has damaged or killed mature oaks valued for their beauty, wildlife habitat, and shade. Areas with large numbers of native oaks are particularly at risk. Unfortunately, oaks that are injured over several years from multiple generations of the GSOB often die.
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Why planting shade trees helps reduce the temperature of urban heat islands
Many of the landscape trees adorning urban cityscapes in Southern California are at or close to the end of their lifespans. While several species of oak, maple, crape myrtle, ficus, magnolia and other common shade trees have a life expectancy of 50-80 years or longer in unstressed environments, few reach their full potential in cities and urban areas. Why?
Sensors, drones, and CIMIS: UCCE Partners with EarthWatch and CBWCD to Save Water in Urban Landscapes
On Friday UCCE San Bernardino County Master Gardener Coordinator Maggie O'Neill and I hosted a tour that showcased UC ANR Urban Water Use Specialist's Amir Haghverdi's landscape plots at the UCR Citrus Experiment Station. In attendance were CEO Scot Kania and Lead Scientist Mark Chandler from EarthWatch, Becky Rittenburg and Monica Curiel from Chino Basin Water Conservation District, and Darrel Jenerette, UC Riverside Professor of Landscape Ecology.
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