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Latest Dutch elm disease Stories

New Invasive Plant Parasitic Nematode In Europe
2013-12-30 08:56:12

Pensoft Publishers Following its recent synonymization with Meloidogyne ulmi, a species known to parasitize elm trees in Europe, it has become clear that M. mali has been in the Netherlands for more than fifty years. Evidences given by the authors suggest that M. mali was probably introduced during the breeding program on Elms against the Dutch Elm Disease (DED) during which large numbers of Elm rootstocks and seeds were imported from several different countries. The study was published...

Concerns Over Tree Pests And Diseases On The rise
2013-11-15 12:57:15

University of Southampton New research has found that the number of pests and disease outbreaks in trees and forests across the world has been increasing. The review "The consequences of Tree Pests and Diseases for Ecosystem Services" by scientists from the universities of Southampton, Cambridge, Oxford and St Andrews is published today (15 November) in the journal Science. The research shows that the experience of widespread death of trees, similar to that seen from Dutch elm...

2013-10-16 23:00:39

Live demonstrations of ArborSystems fall Diplodia Tip Blight treatment for pines and conifers using the Wedgle Direct-Inject Tree Treatment System, their new ready-to-use systemic antibiotic direct-inject chemical line for ornamental trees, large woody shrubs and palms and their new Pointle Palm Injection Tip will be on display at the ArborSystems exhibit during the GIE+EXPO October 23 – 25 at the Kentucky Exposition Center in Louisville, Ky. and TCI Expo November 14 - 16 at the...

2013-09-03 23:00:23

ArborSystems introduces ready-to-use systemic antibiotic direct-inject chemical line for ornamental trees, large woody shrubs and palms. Terrier Antibiotic treats Bacterial Leaf Scorch in Elm, Oak, Sycamore, Oleander and Sweet Gum trees; Fire Blight in Mountain Ash trees; Ash Yellows in Ash trees; and Phloem Necrosis in Elm trees (also called Elm Yellow). Springer Antibiotic is for seasonal suppression of lethal yellow disease in palms. Omaha, NE (PRWEB) September 04, 2013 ArborSystems...

2012-11-01 00:15:21

UK bans European ash trees to halt fungus spread, Imperial researchers say public need to be more aware of trade risks to tree health The UK Government has recently imposed a ban on importing foreign ash trees in order to prevent the spread of the disease Chalara, which kills the trees and has entered the country via imports from Europe. Imperial College London researchers argue that the nursery trade, horticultural stakeholders and the plant buying public need to be more aware of the...

2012-03-29 22:43:56

Scientists at the University of Guelph have found a way to successfully clone American elm trees that have survived repeated epidemics of their biggest killer – Dutch elm disease. The breakthrough is the first known use of in vitro culture technology to clone buds of mature American elm trees. "This research has the potential to bring back the beloved American elm population to North America," said Prof. Praveen Saxena, a plant scientist who worked on the project with Professor...

2012-03-29 21:27:55

A healthy century old American elm on the campus of the University of Guelph could hold the key to reviving the species that has been decimated by Dutch elm disease (DED). This tree is an example of a small population of mature trees that have resisted the ravages of DED. A study published in the Canadian Journal of Forest Research (CJFR) examines using shoot buds from the tree to develop an in vitro conservation system for American elm trees. "Elm trees naturally live to be several...

2011-07-13 13:53:37

North Carolina State University researchers have found that a subset of fungus-farming ambrosia beetles may be in the early stages of a global epidemic threatening a number of economically important trees, including avocados, poplars and oaks. "Only about 12 species of ambrosia beetle are creating problems so far, but there are thousands of other species in the world, many of which could be devastating to any number of tree species," says Dr. Jiri Hulcr, a postdoctoral research associate at...

2011-03-31 00:48:43

Two U.S. Department of Agriculture (USDA) scientists may have discovered "the map to El Dorado" for the American elm"”a previously hidden population of elms that carry genes for resistance to Dutch elm disease. The disease kills individual branches and eventually the entire tree within one to several years. It has been accepted for 80 years that American elms (Ulmus americana) are tetraploids, trees with four copies of each chromosome. But there have also been persistent but dismissed...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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