Application guide
Required
Tools:
• Electric or rechargeable drill, using a sharp spiral drill
bit.
(Always refer to package in use for recommended drill bit size
- 1/4", 3/8", or 1/2")
• Hammer
• Flat end punch, or dowel rod.
Calculation
and Application of Tree Implants:
(Read through instructions in their entirety prior to use)
1. Calculate the Circumference of the Tree: To find the
circumference, use a tape measure around the tree trunk at 4
ft. above ground. The number of implants required is based
on the tree trunk size at 4 ft. above ground and the specific
recommendations for the product being used. Measure
circumference in inches.
2. Calculate the Number of Implants Needed: Divide the
circumference by the recommended spacing for the product being
used (3, 4 or 6 inches). If tree base is larger than measured
circumference, make sure to place recommended number of implants
evenly around the tree base.
EXAMPLE: 40 inches circumference ÷ 4 inches implant spacing = 10
implants
3. Calculate Drill Hole Depth: The holes need to be deep
enough to allow each implant to be recessed just inside the
inner bark. Hole depth is determined from inside the inner
bark. For proper drilling depth:
|
Tree Size |
Recommended Size of Implant Diameter |
Drill Each Hole Depth |
|
1 1/2" - 3" (3.8 - 7.6cm) |
"Mini" 1/4" (.64cm) |
7/8" (2.23cm)
|
|
3" and up (7.6cm and up)
|
"Standard" 3/8" (.95cm) |
1 1/4" (3.2cm) |
|
8" and up (20.3cm and up) |
* "Super" 1/2" (1.27cm) |
1 1/4" (3.2cm) |
* 1/2" Implants Available Only In MEDICAP FE.

4. Gauging Drilling Depth: After drilling the first hole,
use a measuring instrument (i.e. flat end of pen or pencil) as a
depth gauge, insert completely into the hole and mark the depth
by placing your thumb against the outer bark. Be sure to
remove
drill shavings from each hole.
Repeat this procedure for every drilled hole.
5. Application of Tree Implants:
Drill the implant holes at a uniform spacing, spiraling up and
around the lower tree trunk surface. Start approximately 6
inches (15.2 cm) from the soil level.

6. Inserting the Tree Implants: Place the implant
cartridge into the pre-drilled holes, simply pressing them into
the tree trunk. Be sure to press the cartridges in as far as
possible. Using a hammer and a flat end punch or dowel rod
carefully drive the cartridge into the tree, recessing the large
end slightly beneath the cambium surface, which is just below
the bark.

7. Wound Dressing: The cartridge head securely plugs the
small wound made to the tree trunk, however on thin barked trees
(i.e. birch, fichus, etc.) it is recommended that a light wound
dressing be applied over the implant site. This provides further
protection until the cambium closes over.

8. Completion of Application Process: With the
application process completed the natural sap flow will
“systemically” absorb the chemical and distribute it throughout
the tree. The active layer of cambium will soon grow over and
close the implant site. The cartridges are to be left inside the
tree.
Notes:
1. Where lower branching occurs 4 feet or less from the
ground, make certain the
implants are placed directly beneath the lower branches. This
will assure adequate distribution of chemical throughout the
tree.
2. On large trees where there is no
main stem or trunk and multiple branching
occurs, treat each stem as if it were a separate tree. This will
assure adequate distribution of chemical through the tree.
3. When Re-treatment is necessary,
place the new implants in a spiral pattern
between, and above or below the previous treatment. Do not
attempt to drill into and remove the cartridges implanted
previously. Note the positioning of three applications.
4. Extensive research has shown that when MEDICAPS containing
plant nutrients are properly applied, the response should be
beneficial for 2-3 growing seasons. Therefore, repeat
applications would normally not exceed two over a 4 to 5 year
period. Do not repeat implant treatments where tree has not
shown the ability to adequately close over the prior treatment.
Follow Cautions Where Indicated:
Do:
• Always read & follow label directions for product being used.
• Use proper drill bit
• Remove shavings from hole
• Recess cartridge end below the inner bark
• Sterilize the drill bit (using Lysol aerosol, or similar type,
disinfectant) between trees being treated
• Water thoroughly if weather conditions are dry
• Carefully read the Application Timing for optimum results
Do Not:
• Enlarge the hole diameter
• Use a sharp end punch
• Remove the previously implanted cartridges
• Break plastic gelatin
• Place implant too deep
Application Timing:
The “effect” of systemic implants is maximized when implants are
in place in the tree during the period of optimum xylem
activity, to transfer the chemical from the implants into the
crown of the tree. The chemicals used in MEDICAPS possess
little (if any) phloem activity, therefore, it is suggested
application be avoided as trees are going into dormancy! The
following guidelines are provided to facilitate optimum initial
results – and the best residual control. Statements made below
are not intended as a guarantee of the residual activity of
MEDICAP implants.
MEDICAP® FE and MEDICAP® MD:
For optimum first season response and for maximum duration
control (i.e. 2-3 seasons), implants should be made after the
trees are dormant, and prior to or during spring vegetative
growth. Late summer/early fall treatments may be effective if
trees still possess vegetative growth. If late summer,
applications do not provide an initial response, benefit is
normally evident the following growth season.
MEDICAP® MN and MEDICAP® ZN:
Since manganese and zinc do not translocate into existing
chlorotic foliage, application is recommended prior to or during
spring vegetative growth only. Limited initial response may be
observed with early summer implants of MN or ZN if trees are
capable of new vegetative growth. Deep root liquid feeding of a
high nitrogen fertilizer will enhance the response of all
MEDICAP implants, and particularly when using MN or ZN.