Another article on Imprelis; this one from twincities.com:
"Mark Stennes, plant pathologist for S&S Tree and Landscaping Specialists of South St. Paul, has seen thousands of trees that he thinks Imprelis damaged or killed.
"I have seen whole quarter-mile rows of trees smoked by this," Stennes said. In 33 years in the business, "this is absolutely the worst I have ever seen."
Even with Imprelis off the market for 15 months, the worst might not be over.
Kathy Zuzek,, assistant professor at the University of Minnesota Extension Service, said Imprelis mimics natural hormones to prevent plants from growing.
It's very slow-acting. That means trees that appear healthy might yet die because of Imprelis. " - http://www.twincities.com/ci_2241550...innesota-trees
(article posted 1/20/13, article accessed 1/21/13)