Ohia trees are dying rapidly, Why?

[Midnight Rambler]

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Originally posted by Digitalis

If there are invasives growing right alongside the ohia (we have lots of strawberry guava and princess flower) what is the best approach- to uproot the nasty and risk messing with the ohia's root system, to cut down the invasive but leave the stump in place, or just leave it all together?

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Cut them down and paint the stumps with Garlon (triclopyr) or Roundup. That will avoid getting it in the ground where it can affect the ohia and other plants. You will also need to apply it to the other end and stack the stems somewhere to let them die, because they may also resprout if it's wet enough.