Accessibility Links
Canada's trees: Winnipeg brings Dutch elm disease under control
It begins as a tiny stowaway on a crate from Europe or Asia, a relocated piece of firewood, or just a mild winter. Within decades, millions of hectares of Canada's woodlands have been laid waste because of it. Armies of tiny insects have stripped city boulevards of stately elms and ruined billions of dollars worth of softwood. Since the 1950s, science has fought these invading waves of caterpillars and beetles using everything from DDT to pheromones and bacteria. But victory seems no closer in the fight to save Canada's trees.
Program: 24 Hours
Broadcast Date: June 28, 1992
Guest(s): Mike Allen
Reporter: Sandra Lewis
Duration: 3:06
Last updated: November 23, 2012
Page consulted on May 13, 2013
All Clips from this Topic
-
An errant spray plane kills nearly a million fish, and the spray debat...
-
A fleet of spray planes wages war on "the mightiest mites in the Marit...
-
Researchers at two Canadian universities are hot on the trail of biolo...
-
For 25 years New Brunswick has drenched its forests in toxic spray. It...
-
In the shadow of Parliament Hill, stately elms fall victim to Dutch el...
-
A Toronto researcher who recently saw his first elm may have a cure fo...
-
Today from Ontario looks at the historical spread of Dutch elm disease...
-
Pilots, farmers and bystanders relate the all-too-common tale of dousi...
-
A huge salvage and reforestation effort undoes budworm devastation.
-
The hemlock looper: goofy name, voracious appetite.
-
Winnipeg experts think they've turned the corner on the devastating tr...
-
A group of activists and residents in Cape Breton are unable to stop h...
-
The tiny brown spruce longhorn beetle has shut down one of Halifax's l...
-
Workers fell trees to stop the longhorn beetle; critics seek an injunc...
-
An explosion of mountain pine beetles threatens millions of trees in t...
-
A Halifax artist makes carvings out of leftover stumps in Point Pleasa...
-
For decades, Winnipeg kept Dutch elm disease at bay. Now it's making a...
-
As logging crews double cutting efforts to stop the pine beetle, Judy ...
-
Up to 60,000 ash trees are sacrificed to contain the emerald ash borer...
-
The Asian longhorn beetle and emerald ash borer join the list of unwel...