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VI.
STRESSED OR PROBLEM TREES / VERTICAL MULCHING
Product
EarthWorks
Establish
General
Instructions for Treatment of Trees
Drill
holes 12-18" deep using an earth auger (2-4" diameter) or narrow
trenching shovel and fill with Establish
according to the following guidelines:
A.
Newly Planted Trees
24-36"
Boxed Trees: Drill
3 holes equally spaced in a circle just outside the rootball in the
backfill area, and 5 additional holes equally spaced in a circle
12-18" further out.
45-54"
Boxed Trees:
Drill 4 holes equally spaced in the backfill area, and 7 holes equally
spaced in a circle 24" further out.
60-70"
Boxed Trees:
Drill 3 holes equally spaced into the rootball, 5 holes equally
spaced in a circle in the backfill area, and two small rows of holes
24" apart at an additional 5' and 7' out from the tree trunk.
B.
Established Trees
1-3"
trunk diameter:
3-5 holes in a circle 3' from trunk.
4-6"
trunk diameter:
2 rows of holes 4' and 6' from
trunk.
C.
Larger Trees
Holes
2' apart in a circle just inside dripline of the tree.
D.
Specimen Tree
Drill
holes 3-4' apart in a circle just inside dripline of the tree.
Note:
Nutrients or
irrigation should not be used on oak trees within 4' of the trunk.
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