Hard paved surfaces such as roads, car parks, driveways, and courtyards cover a significant proportion of urban areas. Impervious paving increases peak and total storm water discharge increasing demand on existing stormwater infrastructure and increases downstream flooding. Rapid discharge of storm water deteriorates stream habitat through bank erosion, while runoff from impervious surfaces carry pollutants [...]
Continue reading...11. March 2009
Heat stress According to Kozlowski, Kramer & Pallardy (1991) the thermal death point of most active plant cells varies from 50 to 65C. This is dependent on species, age of tissue and duration of exposure to high temperature. However, high temperatures below the thermal death point can often damage woody plants. Symptoms of this type [...]
Continue reading...8. January 2009
On a recent Holiday to Port Stephens (which is located some 220km north of Sydney, NSW), I travelled further north to Bulahdelah and stumbled across what was signposted and what was apparently the tallest tree in NSW. After driving down 5km of dirt track and walking only 150m ‘The Grandis’ as it is locally known [...]
Continue reading...10. December 2008
Things to bear in mind when you transplant a tree in the landscape Importing new trees 1. Carefully select the species. Is the tree going to grow to an appropriate size to accommodate the available space? Do you have sufficient root volume for the chosen tree to grow and mature in? Does the species have [...]
Continue reading...9. December 2008
by Ian Shears. Senior Tree Planner. City of Melbourne City of Melbourne Experience The City of Melbourne is internationally recognised for its tree-lined boulevards, parks and gardens. Trees beautify, define and soften landscapes and give scale to buildings in addition to providing shade and wildlife habitat. Trees are the most life enriching of all the [...]
Continue reading...27. November 2008
In October, Tree Logic was set the task of transplanting a large maturing Azarole Hawthorn (Crataegus azarolus) located in old Salvation Army site where it had been planted 60 years earlier, to Victory Park in the very heart of Traralgon which is literally across the road. The tree is listed on the Victorian Heritage Register [...]
Continue reading...27. November 2008
Lee Carr Tree Logic’s Office Manager and Wayne Bloxidge Team Leader Outdoor Services from Tree Logic recently attended the 9th National Street Tree Symposium in September joining others passionate about sustainability practices in their industry. A big thank you to everyone who supported the Tree Logic Stand at the Symposium. With increased crowding within urban [...]
Continue reading...27. November 2008
The long-awaited release of the newly registered Bayer SilvaShield® Injectable Tree Insecticide has arrived. Current practice has many applicators using non-registered products such as Confidor® to undertake trunk injections. Confidor was formulated as a soil drench and while some control may be achieved, there are chemicals in Confidor that actually inhibit uptake through the tree’s [...]
Continue reading...27. November 2008
At present, Harbour Esplanade is only partially complete. The roadway south of Bourke Street is yet to be developed and parts of the Victoria Harbour waterfront remain at the original elevated level with the old wharf structures. A functional review undertaken by VicUrban identified several issues that require consideration, including lack of weather protection and [...]
Continue reading...29. October 2008
Hairy Wattle or Downy Wattle (Acacia pubescens) has become the 1000th seed sample to be sent to the Millennium Seed bank project at the Royal Botanic Gardens, Kew UK. The Millennium Seed Bank Project (MSBP) is the largest ex situ conservation project ever conceived. The Royal Botanic Gardens, Kew and its partners will have banked [...]
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11. March 2009
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