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Macro-infusion is successful in protecting non-diseased Red
and Live Oaks that are root grafted to diseased trees. Already
diseased red oaks cannot be saved. Diseased Live Oaks can
be saved, but it is difficult. Treating diseased White oaks has
a very high success rate – over 99%. Following the protocols is
crucial to your success.
Even and Complete Coverage is Critical
to Success
The purpose of Macro-infusion in Oaks is the complete and even coverage
of all the water conducting tissue in the tree in order to prevent
the Oak Wilt fungus from colonizing the tree. Infusing into the
root flares is critical for even and complete distribution. The
tissue in the root flares allows for sideways movement of the chemical
as it is infused. Trunk tissue on the other hand is hard, rigid,
and highly compartmentalized. Infusion into trunk tissue will provide
very limited sideways movement of the Alamo solution and will result
in small portions of the crown receiving a large dose of Alamo with
other areas receiving nothing. Having sufficient quantities of solution
is critical. Micro-injections
with Alamo have not been found to be effective, as they do not contain
sufficient volume to get even and complete coverage.
 Infusing
into the root flares is critical to achieve even and complete
distribution of the Alamo solution throughout the crown of the
tree.
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Every aspect of Macro-infusion is designed
to get even and complete coverage of the Oaks water conducting
tissue with the Alamo solution. |
Step 1 - Inspect the tree
If you are treating a Red oak, make sure it is not infected
with Oak Wilt. Fully scan the crown to make sure there are no
symptoms. If the tree is diseased – DO NOT TREAT. Red oaks cannot be saved once they are showing symptoms. Live oaks have been saved when only a small portion of their crown is infected.
However treating an infected live oak has a high risk of
failure. Infected White oaks are easily saved with Alamo
macro-infusion, success rate is over 99%.
Measure the tree and determine your dosage. Oaks require 10 ml
of Alamo per inch DBH. (Diameter breast height). Each 10 mls of
Alamo is diluted in 1 quart of water. Refer to the Alamo
dosage sheet.
Large trees require increased amounts of chemical to achieve complete
distribution. The label allows up to 20 mls of Alamo per inch DBH
and we recommend you use this rate for large specimens over 25 inches
DBH.
Look for root rot or significant decay
in the root collar area - if present do not treat. Drilling holes
into trees with active root rot fungi will spread the disease.
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Equipment
Rainbow provides a complete set of
equipment for Macro-Infusion.
Connector Tees
3 per kit
Infusion Tees
Specially designed with side outlet
holes to put the solution directly in the xylem. Use one tee
for every 1-1 1/2’’ DBH of tree.
50 per kit.
Harness Tubing
To connect trees together.
110 feet per kit.
High Helix Drill
Bits
Are critical for fast uptake. They
are razor sharp and have 2x the cutting surface of conventional
bits. Change bits every five trees.
2 bits per kit.
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Macro
Infusion Instruction Video
