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Old 05-26-2013, 04:41 PM
greendoctor greendoctor is offline
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Join Date: Mar 2008
Location: Honolulu, Hawaii
Posts: 7,424
Glyphosate is not the best choice for kill edging. It bleeds out way past where it was originally applied. The fashion in Hawaii is to make walls out of stacked and mortared volcanic rocks. Almost impossible to trim nicely. Diquat or Finale works well as a kill edger applied in a 1-2" band next to that kind of wall. Do it with RoundUp with a non calibrated hand piece and the dead area could be as much as 6-8" wide in addition to not being a sharp line of kiled grass. An 8001 tip operated at 40 PSI and held close to the ground will apply a 2" band.
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