SALEM -- Alarmed by multiple incidents of bee deaths this summer, the Oregon Agriculture Department has temporarily restricted the use of pesticides containing two active ingredients that are dangerous to bees.
In a statement Thursday, the department said it's banning the use of products containing dinotefuran and imidacloprid on linden and similar trees.
The agency says the rule applies to all users, including professional applicators and homeowners.
After high profile bee deaths last year, the Agriculture Department ordered that pesticide labels be revised for 2014 to note that use of the ingredients was prohibited on trees that bees like. However, the agency says two recent bee death incidents - in Eugene and in Beaverton - involved the use of product with an older label, which just noted that the product is highly toxic to bees.
The agency says its temporary rule goes into effect immediately and will be enforced for six months while it completes its bee death investigation.
The Agriculture Department last week suspended the pesticide license of the tree care service responsible for spraying an insecticide blamed for killing 1,000 bees at a Eugene apartment complex.