My dumb dumb move was horrific. I read the label - it said that established evergreens could withstand application of said herbicide. I was desiring to keep weeds from growing in and around my 2 year old Douglas Fir that I had rescued from a work site and planted along the length of my easement road. Too much of anything is NOT good, but I didn't know that - until I noted the new soft whip of top growth drooping as if water was badly needed. I wish it had been that simple. I lost every single tree, except one - which serves to show me what "might have been". In the years since, of course, I am become much better educated and prudent about any "killer" products.