Quotes

What Not To Plant

Something simple and extremely fundamental must underpin any effort to increase the biodiversity of the urban canopy: adequate quantity and quality soil and water. That’s it. If a guy wanted to grow a great tree in a typical 4 x 4 urban tree opening, he could add macronutrients (NPK), micronutrients (Mn, Mg, etc.), compost tea,… More

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What Not To Plant

Something simple and extremely fundamental must underpin any effort to increase the biodiversity of the urban canopy: adequate quantity and quality soil and water. That’s it. If a guy wanted to grow a great tree in a typical 4 x 4 urban tree opening, he could add macronutrients (NPK), micronutrients (Mn, Mg, etc.), compost tea,… More

Read Article

The High Cost of Urban Monocultures

Tree species diversity is a critical element of ecology sustainability, the most urgent of which is to minimize the impact of pests and disease outbreaks on urban canopy cover. Anyone who has followed the introduction of Dutch Elm disease (DED) is already painfully aware of how devastating tree pest outbreaks can be. Where I live,… More

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The High Cost of Urban Monocultures

Tree species diversity is a critical element of ecology sustainability, the most urgent of which is to minimize the impact of pests and disease outbreaks on urban canopy cover. Anyone who has followed the introduction of Dutch Elm disease (DED) is already painfully aware of how devastating tree pest outbreaks can be. Where I live,… More

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Come Fly With Me: Drones for Tree Assessment and Care

Unmanned Aerial Vehicles (UAVs) or “drones” evoke a variety of responses from people ranging from anger over privacy invasion to awe over the new perspectives on our world. But like the Force, drones are merely tools that can be used for either the Dark Side or the Light. My interest in drones is related to… More

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Speaking for the Trees: Getting to Know Diana Beresford-Kroeger

If you love trees but aren’t familiar with Diana Beresford-Kroeger, it’s time to acquaint yourself with her work.  A botanist, medical biochemist, author, and activist, her background combines western scientific training with traditional folk-knowledge and methods. Perhaps her strongest talent is her ability to bring an understanding and appreciation of the scientific complexities of nature… More

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Nursery Inspections: The inspection process below ground

In Part One of this blog we set the stage to select quality trees by starting with a good specification, working within the normal project submittal process, and resetting our expectation of what constitutes a good quality tree. The requirements for inspecting the parts of the tree aboveground were reviewed. For the inspection of the… More

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Nursery Inspections: Creating and enforcing plant quality specifications

Many trees purchased from nurseries may have significant defects that can reduce the useful life of the tree. This isn’t just speculation; there is good evidence that large segments of the nursery industry are supplying defective plants. Brian Kane at the Urban Tree Foundation and Ed Gilman at the University of Florida, both respected researchers… More

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The Last Mile: Proper Tree Planting for Successful Projects

After months of design, calculations, and careful planning, construction is starting on your next project. You have spent hours selecting which tree varieties to use, where to place them, and how they will be maintained. Perhaps you have even invested extra time and resources to make sure those trees will have ample soil and water… More

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The Realities of Large Tree Moving

When there are existing trees on a development site, moving the tree is often considered as a method of tree preservation. Often the tree is growing in an “inconvenient” location for the project and tree preservation is either desirable, politically expedient, or required by local ordinance. While trees can be moved, there are some realities… More

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