У вашего броузера проблема в совместимости с HTML5
Dave Jackson of Penn State University Cooperative Extension provides an example of how to apply glyphosate (as in Roundup) to control beech via the hack-and-squirt method. Note that Dave has recently published a fact sheet on basal bark treatment of common undesired hardwoods. He manages a site "forest vegetation management" which is worth a visit at http://extension.psu.edu/fvm