The Purpose of Alamo Macro-Infusion Alamo Macro-infusion is an
effective tool for protecting and saving oaks threatened by oak
wilt. It is the only process recommended by either the US Forest
Service or the Texas Forest Service. The purpose of Alamo Macro – infusion is to evenly and completely cover the internal vascular
system of the tree with enough chemical to keep the disease out.
Since the Oak wilt fungus can stay alive in the root system of surrounding
infected trees for 4 years, it is necessary to retreat oaks after
2 or 3 seasons, depending on the oak variety (See individual tree
information below). Each variety of Oak reacts to the Oak wilt fungus
in unique ways, thus it is important to understand the protocols
for your oak species as specified below.
Each of the 3 Oak Families Require a Different Treatment Approach
Red Oak Family
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Alamo macro-infusion should only be used as a preventive treatment
for trees in the red oak family. If a red oak is showing symptoms
of oak wilt a therapeutic treatment of Alamo will NOT save the
tree. |
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Red oaks that should be treated are those that are not showing
symptoms of oak wilt but are within root graft distance to a
diseased tree. (100 feet) |
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Alamo does not provide a barrier from neighboring untreated
oaks. The disease will pass through the treated oak and continue
to infect other oaks that are root grafted to the treated tree.
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When treatment with Alamo is combined with trenching
to disrupt root grafts. Only treat Red oaks inside the trench
line that are not yet showing symptoms. |
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Treat Red oaks again in 2 years after the first treatment.
Because the Oak wilt fungus can remain alive in the roots for
up to 4 years, this is recommended to prevent re-infection.
No additional treatments should be needed. |
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Treat with 10 ml of Alamo per diameter inch and dilute each
10 ml of Alamo in up to 1 quart of water. The label allows for
up to 20 ml per inch diameter for trees over 25" diameter |
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When combining Macro
infusion with trenching
red or live oaks, treat the trees inside the trench that are
not symptomatic. These are colored in blue. |
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Alamo Macro infusion will save trees
when used in conjunction with an appropriate protocol.
For detailed step by step instructions
on how to Macroinfuse Oaks, see Performing
Macro-Infusion on Oaks.
 Only
treat Red oaks that not showing disease
symptoms within 100 feet of diseased trees.
Do not treat oaks in the Red oak
family that are showing symptoms of Oak wilt.
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