Great stuff there. Thanks for sharing. I am always thinking about stuff like that. I wonder if diesel fuel and their "bark oil" are similar enough to get the same results? I hit 3 very large honey suckle with a low dose of triclopyr and diesel fuel early last spring to compare effectiveness with higher doses. It was along my 1/2 mile driveway so I drive by it everyday and can watch it. My results were the same as her's - they were stressed the first year and dead this year. I'm going to add water to the mix and keep working with less chemical and see how that goes. Loved that video!