This webinar is part of a series for National Invasive Species Awareness Week hosted by the National Association of Invasive Plant Councils.
“Hack and squirt” is an individual plant treatment technique widely used for woody invasive plants across the United States. The basic method involves making a series of cuts around the circumference of a tree and immediately applying a concentrated herbicide solution into the cuts. As simple as this seems, there is tremendous diversity among researchers and land managers in exactly what is meant and what is done with this technique. In reality, hack and squirt may entail labor intensive girdling type cuts, overlapping frill cuts, injection for evenly spaced cuts, and a myriad of tools to accomplish these methods. We will review different types of hack and squirt treatments, tools, and herbicides used. We will also discuss selectivity, herbicide flashback, and how hack and squirt techniques compare to other IPT methods. Get ready for a fun and informative lecture, and let’s take a hack at hack and squirt!