by Staff Writers
Detroit (UPI) Jul 10, 2011
A new herbicide may be killing Norway spruce and white pine trees across the United States, and DuPont now says its product should not be sprayed near them.
Landscapers switched to Imprelis this year to control weeds because it was claimed to be safer for the environment than predecessors, The Detroit Free Press reports. The Environmental Protection Agency approved it last year.
Amy Frankmann, head of the Michigan Nursery and Landscape Association, said she has not seen such widespread tree death since the emerald ash borer ravaged ash trees.
"I'd say this is right up there as far as the significance and losses," Frankmann said.
"The customers are calling: 'My trees are dying, what's up?' " said Mark Underwood, a Michigan lawn care specialist. "We've never experienced anything like this."
The EPA held a teleconference Wednesday with agriculture officials from several states to gather information about Imprelis' effect on trees.
DuPont spokeswoman Kate Childress said: "We're taking this seriously. We're very committed to understanding the circumstances."
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Using DNA in fight against illegal logging
Adelaide, Australia (SPX) Jul 04, 2011
Advances in DNA 'fingerprinting' and other genetic techniques led by Adelaide researchers are making it harder for illegal loggers to get away with destroying protected rainforests. DNA fingerprinting for timber products has grown in international recognition due to research led by the University of Adelaide that traces individual logs or wood products back to the forests where they came f ... read more
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