04-06-2015, 10:21 AM
It is a major problem, albeit 'slightly' less so in Puna than north of Hilo. If you ever drive up towards Onomea Bay and across the various bridges on the way to Laupahoehoe, they are everywhere. You cannot just cut them up and throw them in a mulch pile - they will grow back from the cuttings. As Rainyjim suggests, drill in a hole at a 45 degree angle and add a couple drops of Milestone - that's the only thing that has worked for me on killing these.
Leilani Estates, 2011 to Present