On 6-Jan-14, at 10:22 PM, Brian Ames wrote:
> "In some cases we have peak concentrations that are 100 times or
> more higher than those benchmarks of safe levels." Morrissey said.
> She and her fellow researchers have sampled hundreds of wetlands
> and have found that "upwards of 80 to 90 per cent of the wetlands
> are contaminated."
>
Hi Brian and all
Dr. Christy Morrissey made two presentations at the Ontario
Beekeepers Assoc AGM in Nov 2013. A point she made, that is not
specifically covered in the CBC article, was that different soil
types affected the half-life of the neonic pesticides differently.
One case that she talked about was a field that was planted with seed
treated canola, one year only. The level of the insecticide had
decayed only to 80% of the planting year levels after four years.
Bob Darrell
Caledon Ontario
Canada
44N80W
***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software. For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html