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KESTREL® Label Instructions for
Chemjet
KESTREL®
Propiconazole
14.3 % - Label Instructions
Chemjet Trunk Injection
For Oak Wilt
Treatment
The Chemjet
micro-injection syringe is designed to treat urban and rural trees depending
upon the disease pressure in your area. The chemjet has a volume capacity of 5 -
20 mils and when applying KESTREL® propiconazole 14.3%, It is recommended to
premix the Kestrel with an equal part of water and draw 20 mils of the chemical
/ water 50-50 solution into the barrel and with 1/4" turn of the plunger handle
into the locking position. This procedure provides the preventive treatment
dosage of 10 mils per diameter inch using 10 mils of water as the carrier which
also lowers the viscosity of the fungicide and allows faster uptake. The
syringes will have to be refilled and placed in the same holes to provide the
therapeutic dosage of 20 mils per diameter inch.
Once the syringes are
filled with the prescribed amount product, they should be placed in a bucket
with the red plunger handles down and the nozzles upward. This will avoid
leakage until they are ready for use.
Note:
The Syringes should not be preloaded and
placed in the lock position for an extended period of time. The extended time
period and spring force may damage the lock position slot. It is best to use the
product filled syringes in a minimum time following preloading.
The syringes will contain
20 mils of a 50% formulation of Kestrel / water and to be applied at the rate of
one syringe per diameter inch of DBH. Determine the number of syringes to use
per tree by determining the circumference. e.g. A tree with a circumference of
60", divide by 3 equals approximately 20 inches Diameter at Breast Height. (DBH).
A tree with a DBH of 20 inches would require 20 syringes placed approximately 3
inches apart equidistant around the trunk stem or that is the same as 1 syringe
per diameter inch.
The syringes should be placed in the trunk flares close to the
soil (2 to 6 inches above the soil-wood line). It is very important not to place
syringes in trunk flare valleys, as poor distribution of the material may occur.
Once the tree DBH has been determined, place the syringes on the ground around
the tree in the trunk flare areas that will result in the best distribution of
the material throughout the tree.
The aim of tree injection is to use the tree's natural
transport system which uses the water within the tree for dilution and
distribute of the injected product.
KESTREL®,
Propiconazole, a systemic fungicide, (
XMS .. Xylem Mobile Systemic ) does not
require high dilution rates with water, so treatment is considerably
faster, and there is less tissue injury at the injection site as it has a near
neutral pH factor.
Here is a comparison to size: O
= 11/64"
and
O=
5/16" The
overall hole volume comparison is 75% less.
You can place your
chemjets from above the soil level to a height of 4 1/2 feet up the trunk stem.
You choose the best and most comfortable height to inject your trees. The water
movement and flow rate is the same at all points in the trunk stem.The water
movement up the trunk is at the rate of 92 feet per hour.
Once the
syringes are in place unlock the Chemjet with 1/4 " turn and the spring will
gently force the chemical into the tree. If you do not get a tight seal, with
the open palm of your hand give the Red plunger handle a gentle nudge and you
will hear a popping and that signals that you have a water tight seal.
NOTE:
The Chemjet requires a 11/64" drill size bit. Injection
needs to be into the sapwood, and with the smaller drill, the tree can focus
less energy to recover from the smaller and the reduced number of macro drill
portals wounds.
Drill the
holes approximately 0.75 to 1.25 inches deep on a 45 degree angle to the main
trunk where each syringe is to be placed. The holes should extend just into the
tree xylem area. It is best to drill 3 or 4 holes at a time and then place the
syringes into these portals. Once the syringes are in place unlock the RED
plunger handle with 1/4 " turn and the spring will gently force the chemical
into the tree. If you do not get a tight seal, with the open palm of your hand
give the RED plunger handle a gentle but, firm nudge and you will hear a popping
sound and that signals that you have a water tight seal. Continue this practice
until all injector syringes are installed.. It should take you about 10 minutes
to inject a 24" diameter tree. and about 3 - 5 hours to complete the uptake of
the chemical.
Oaks trees
generally have a more efficient and a higher rate of wound closure up the trunk
stem extending from above the trunk base to upper branches as it is associated
with stem growth and the annual increase of the outer sapwood, the cambium
tissue as well an new bark tissue. Meristem cells (similar to stem cells in
humans) display an important role in cell regeneration and wound closure ... and
the tissue layer known as cambium.....
The applicator should attempt to evenly distribute the
chemical through the tree by evenly spacing injection sites around the trunk of
the tree.
Proper location of these injection sites is critical
for proper distribution of the fungicide. Inadequate distribution leaves trees
poorly protected.
Once the syringes
are in place, it will take approximately 3-5 hours for the uptake to be
completed. Time to empty the syringes can vary depending on the time of the
year, humidity, weather conditions, the tree health, soil moisture conditions
and bright sun with mild temperatures facilitate the emptying of the syringes.
At the time of treatment, residents and landowners should be encouraged to water
the soil under the trees prior to treatment to help increase its effectiveness.
The syringes should remain on the treated trees for a maximum of 3-5 hours, but
if empty before they can be removed from the tree. If the syringes have not
emptied they can be left over night to complete the injection.
For trees that have
been injected previous years, injection sites can be staggered 3 to 6 inches
above and between old injection sites. In an effort to achieve good uptake,
injections can be made from the trunk flare up to a height of 12 inches from the
soil line.
Trunk injection
syringe units will be cleaned of all debris and inspected and regular
maintenance will be performed as detailed in the manufacturer's Instructions for
Use. Prudent preventative maintenance should minimize delays due to equipment
malfunction. Malfunctioning equipment should be removed from service and
replaced with a working syringe, or may be repaired and returned to service if
the problem can be corrected in a reasonable amount of time.
Phoenix
Environmental Care, P.O. Box 370, Valdosta, GA 31603-0370
EQUIPMENT
•Chemjet® syringe
injectors
•Chisel (only needed for
large bark furrows)
•Cordless drill with a
11/16’ or a 4.2 mm high speed drill bit
•KESTREL® , Propiconazole
14.3% MEC
•2 ½ gallon bucket for
loading & carrying syringes
SAFETY :
Propiconazole taste
nasty. It will sting eyes and cuts, but causes no permanent damage if rinsed
immediately. Follow the label directions. It may irritate sensitive skin, so
wear elbow length PVC gloves, safety glasses and old clothes when injecting.
•••Take care when using sharp equipment such as drills and chisels.
TIMING:
Injection is most
effective in spring, summer & autumn, on warm, sunny mornings. Early morning is
the ideal time as the trees will shut down to conserve water around 11:30 to
noon time. You may also inject your trees in early evening around 7 pm when it
begins to cool down. Avoid injecting on days over 100°F. Propiconazole has a two
year residual and it is recommended to repeat a follow up treatment
approximately 22-24 month later. If your trees are infected with early sighs and
survives the first treatment, it is recommended to retreat in a years time.
Preventative treatments, before infection has occurred, has been found to be
more effective than curative treatments.
STEP 1 Carefully load the
Chemjet® syringes from a bucket that contains the diluted 50 /50 water -
KESTREL® ( Propiconazole MEC 14.3%) solution. Immerse the tip of the syringe in
the solution and pull the plunger back slowly to minimize any air bubbles
forming in the syringe. Twist the plunger 1/4 turn to leave syringe in the
Locked position. Note: The Syringes should not be preloaded and
placed in the lock position for an extended period of time. The extended time
period and spring force may damage the lock position slot. It is best to use the
product filled syringes in a minimum time following preloading.
•If using the
preventative 10 mil dosage rate -Dilute 1 part Kestrel® with 1 part water and
fill the syringe with 20 mils of the solution.
•If using the therapeutic
20 mil dosage rate, simply refill the chemjets for a second time with the 50/50
Kestrel® / water solution replace the syringes in the same drill portals and
uptake will be normal 3-5 hours.
STEP 2 When injecting, if the bark furrows are deep, remove
only enough of outer bark to get a good seal with the syringe. A chisel can be
used, however this is not broadly recommended as it can cause unsightly scars in
the bark for a short time until they weather a while. If using a chisel be
careful not to go deeper than the bark tissue.
STEP 3 Drill a hole into the tree trunk. Injection needs to be
into the sapwood, so don't drill any deeper than 1 1/4 ” inch and on a downward
45 degree angle. You can place your chemjets from above the soil level to a
height of 4 1/2 feet up the trunk stem. You choose the best and most comfortable
hight to inject your trees. As mentioned above the water movement and flow rate
is the same at all points in the trunk stem. Please remember, to drill on a
slight downward angle of 45 degrees . Do not inject trees under 2 ½” diameter
Note: The syringe will penetrate the sap wood only about 1/2 inch for a proper
seal. The screw thread effect on the nozzle is for strength and does not need to
be inserted into the tree. If weeping occurs, with the open palm of your hand,
apply a gentle, but firm nudge to seat the syringe a little deeper into the sap
wood.
STEP 4 Drill a hole every 3 inches equidistance apart around
the trunk flare (this is almost one hand width). Multi stemmed trees need holes
in each trunk. If there is a damaged area in the trunk simply move above the
damage area to complete injectrions.
STEP 5 As you insert syringe nozzle into the drilled hole
avoiding any twisting to prevent damage to the syringe tip. You will not need to
the use the thread at the top of the syringe tip (It is to provide strength to
the nozzle). Gently push the syringe tip into the hole to get a good seal. The
Injector will seat within a 1/2 inch into the xylem or sap wood. Release the
plunger from the cocked position. As mentioned above, you may have to give the
red plunger handle a gentle nudge with the open palm of your hand to help get a
better seal. You will here a click, which affirmes you have a good seal.
STEP 6 Under ideal conditions the syringes should be finished
injecting in 3-5 hours. Note that trees can vary on the time taken to be
injected depending on the tree's health, time of day and weather and soil
conditions. You may have to leave the syringe over night. If significant leakage
occurs try injecting into another hole or delay injection to another day. Remove
syringes once all the KESTREL ® ( Propiconazole ) has been injected.
STEP 7 Count the syringes
before use to ensure that none are lost while injecting. After use clean the
syringes with warm soapy water, (above 95 degrees F) rinse in clean water. A
regular application of silicon spray inside the syringe's chamber will ensure
they will inject smoothly. Syringes should be disassembled at least once a
season and cleaned using the manufacturers instructions. NOTE The Pathogen is
heat sensitiove and 95 degrees F will destroy the pathogen. so regular hot
water (120 degrees) from your tap is fine.
The Don't 's and some little
Tips
Do not drill more than
three drill holes at a time, a hot drill can burn the surrounding wood tissue.
and uptake will not happen. Also you can better keep track of the holes as they
are small and can be difficult to locate. So, do only a few holes at a time and
keep your drill cool !
Do not place the syringes
too close together, this may cause phytotoxicity ( leaves turning yellow )
Always maintain the 3 inch spacing.
If the syringes is not
totally empty, you may drill another hole above the existing hole or just leave
it for a night or two.
The uptake on the Sunny
Side of the tree will be much faster than the shaded side. A cool breeze will
also promote a faster uptake and the same following a good a rain.
NOTE: The root flare is below the soil line and the trunk
flare is above the soil line, the trunk stem is from the soil line to the
branches or limbs. The root flare and trunk flare is the most critical area, it
is the life line of the tree, water and nutrients from the roots and sugars to
the roots for growth and stotrage.When repeative and excessive damage occures to
this critical area death can and will occur.
MOST IMPORTANT .... DO NOT inject a tree under drought
conditions, make sure you water your trees thoroughly the day before injection.
Propiconazole under drought conditions will ZAP your tree as it causes (
phytotoxicity ... burning and yellowing of leaves and possible eventual
death)
The CHEMJET®
Tree Injectors, delivers the same prescribed
volume of the fungicide ( Propiconazole 14.3 % MEC ) at the preventive rate of
10 mils per diameter inch, in a 50% concentrated solution measured at 20 mils
per injector. Each injector placed 3" apart around the trunk stem 4-6 inches
above the trunk flare. Unlike the MACRO injection system, that utilizes a very
high volume water at the rate of 10 mils of fungicide diluted per liter of
water. Often times, the tree will not absorb the full prescribed amount of
fungicide/water solution, leaving as much as a 1/3 to 1/2 of the total required
volume in the reserve tank and lines.
The CHEMJET®
procedure with the higher concentration is much like a booster shot of an
antibiotic only with far more effective results. The aim of tree injection is to
use the tree's natural transport system which uses the water within the tree for
dilution to distribute pesticides, fungicides and fertilizers throughout the
entire tree to the areas where they are most effective.
The CHEMJET®
injectors delivers far better results, with only
16 small drill portals at a lesser cost to the tree with smaller drill damage,
faster wound closure, very efficient uptake, less intensive labor, and best of
all your job is out of the dirt providing the least chance of pathogenic
infection. ....... All in All........ Your tree wins ! !
Chemjets
places approximately 3 incheas equiidistance apart around the trunk stem. |
