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PORTLAND, Ore. State investigators think the same chemical likely killed hundreds of bumblebees in Hillsboro and thousands in Wilsonville.
That chemical is Safari, an insecticide.
The chemical has been used for a long time but investigators havent seen any similar die-offs around here. There are questions about timing and why in Hillsboro its only one tree thats poisonous.
A worker with the Oregon Department of Agriculture climbed into that tree in Hillsboro on Monday and collected samples to see how toxic it is. Crews placed netting over the tree to keep bees from being poisoned.
On the ground there were hundreds of bumblebees already dead or dying. The die-off was first noticed Friday.
But the tree and 200 others in downtown Hillsboro were sprayed in March by city crews with Safari to kill aphids.
I know this is the third year the city of Hillsboro has done this type of spraying, and this is the first time weve seen anything like this with hundreds of bees on the ground, said city spokesman Patrick Preston.
Bees also died by the thousands at the Target store in Wilsonville after trees there were recently sprayed with Safari by a private contractor.
According to the Department of Agriculture, it will look at how much was sprayed and when.
Dan Hilburn, with the department, said by phone hes never seen a die-off like this.
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