Is anybody replacing their ohias?

[Amrita]

Have 4 acres, 37th.  Never ripped even house is on posts on pahoehoe.  Many many ohias but a few have died.  Re: pigs.  I have found the best deterrent is to build up cinders around every tree.  Pigs do not like snouting in cinders. So I have wheel barrowed cinder for the last 19 years all around the property and it helps greatly. The pigs will dig where there is grass and a bit of soil/mud so I lift that up and distribute it to other trees.  Old now, 79 so cannot do it anymore but the years of effort still have provided a barrier to much damage to ohia and hapu'u and other trees I've planted among the ohias. Took a pledge when retired here to never hurt an ohia.