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Latest Tree Stories

2011-08-12 00:00:28

Tens of millions of ash trees are being killed by emerald ash borers, a flat headed borer with no natural predators in the United States. Few insecticides have been effective in controlling this attack"”at least, until now. (PRWEB) August 10, 2011 Research in Toledo, Ohio shows Optrolâ“ž¢, a concentrated 21.4% imidacloprid formula developed by PlantCare Science, has proven effective in protecting ash trees from emerald ash borer, according to studies by...

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2011-07-27 05:55:00

Nibbling by herbivores can have a greater impact on the width of tree rings than climate, new research has found. The study, published this week in the British Ecological Society's journal Functional Ecology, could help increase the accuracy of the tree ring record as a way of estimating past climatic conditions. Many factors in addition to climate are known to affect the tree ring record, including attack from parasites and herbivores, but determining how important these other factors have...

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2011-07-26 08:41:28

Contrary to expectations, researchers have discovered that the conifers of the Pacific Northwest, some of the tallest trees in the world, face their greatest water stress during the region's eternally wet winters, not the dog days of August when weeks can pass without rain. Due to freeze-thaw cycles in winter, water flow is disrupted when air bubbles form in the conductive xylem of the trees. Because of that, some of these tall conifers are seriously stressed for water when they are...

2011-07-26 07:16:00

SCRANTON, Pa., July 26, 2011 /PRNewswire/ -- The construction site at the World Trade Center Memorial Site is bustling with activity, as crews work around the clock to get ready for the opening ceremonies on Sept. 11, 2011. The ground work includes finishing the installation of the last wave of tree boxes from Scranton-based Vycom, which are made with its Hitec® HDPE material. (Photo: http://photos.prnewswire.com/prnh/20110726/NY41281 ) Don Wharton, President of Vycom,...

2011-07-24 23:00:00

CHAMPAIGN, Ill., July 25, 2011 /PRNewswire/ -- Seven professionals--some forging new ways to save the urban tree canopy, partnering with innovative tree planting programs, and teaching children around the world about the science of tree care--have been selected as the International Society of Arboriculture's (ISA) 2011 class of "True Professionals of Arboriculture." Recognition took place at the 87th annual ISA Conference and Trade Show, July 23-27th in Sydney, Australia honoring:...

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2011-07-18 13:31:11

MIT researchers have created a new model that predicts maximum tree height across the U.S. According to the researchers, knowing how tall trees can grow in a region gives ecologists knowledge about the potential density of a forest and size of its tree canopy to the amount of carbon stored in woodlands and the overall health of an ecosystem. The new model takes in basic meteorological data like average annual temperature, precipitation, humidity and solar radiation.  The team said the...

2011-06-08 21:54:03

Despite being costly to initiate, root grafting can increase radial growth in jack pine trees Trees are often viewed as individuals that compete with one another for access to limited resources. But could trees in stressed environments actually benefit from positive, facultative interactions? The authors of a new paper suggest that might be the case for certain tree species"”and that it may take the form of root grafting. Natural root grafting between individuals has been observed in...

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2011-06-08 10:09:21

A new smartphone application is now available that allows any budding botanist to instantly identify tree types by snapping a picture of its leaf, reports the Associated Press (AP). The free iPhone and iPad app, called Leafsnap, instantly searches a growing library of leaf images amassed by the Smithsonian Institution. Seconds after taking the photo, the program returns a likely species name, high-resolution photographs and information on the tree's flowers, fruit, seeds and bark. Users...

2011-05-16 17:18:39

Earlier springs could enhance xylem growth in black spruce"”but colder summers could negate that With an increasingly warmer climate, there is a trend for springs to arrive earlier and summers to be hotter. Since spring and summer are the prime growing seasons for plants"”when flowers bloom and trees increase in girth and height"”do these climate changes mean greater seasonal growth for plants? This is a critical question for forest management, especially in the boreal...

2011-05-01 00:09:06

Redwoods on Google Earth 3D Trees for the First Time San Francisco, CA (PRWEB) April 29, 2011 Save the Redwoods League, the only nonprofit organization dedicated to protecting ancient redwood forests throughout their natural range, announced today that it has partnered with iNaturalist.org to launch Redwood Watch. Redwood Watch is an international citizen-based science project that encourages people around the world to help scientists study redwoods as climate changes. By simply sharing...


Word of the Day
mundungus
  • A stinking tobacco.
  • Offal; waste animal product; organic matter unfit for consumption.
This word comes from the Spanish 'mondongo,' tripe, entrails.