Cambistat® Product Guide

Cambistat® Product Guide
Cambistat®
Product Guide
Growth Regulator for Healthier Trees
Product Category: Growth Regulator
Active Ingredient: Paclobutrazol 22.3%
Item #: 3101, 3102
Unit Size: 1 gallon, 1 liter
Unit Treats: Varies with tree type/size
Product Overview:
Cambistat® is a growth regulator used to extend the life
of trees by keeping them at a manageable size for longer.
Cambistat® gently slows the growth of trees, allowing the tree to redirect some of its energy from canopy
growth into defense chemicals, fibrous root production,
and stored energy. The reallocation of energy makes the
tree healthier and more durable.
How do I apply it?
Dilute Cambistat® in water and apply as a soil drench or
soil injection using the appropriate application equipment.
When do I apply it?
Applications of Cambistat® can be made anytime during
the growing season as long as the ground is not frozen
or saturated with water.
Note: A treatment of Cambistat® lasts for three years. To
ensure proper tree health, Cambistat® should be applied
once every three years.
How much product do I need?
It is important to apply the proper dose to the plant you
are treating. Gather the following information to determine the accurate amount of product needed:
Determining DBH
Single Stem:
Measure the
standard DBH of
the tree.
After determining the size of your tree,
look at the rate card to see how much
product is needed.
Multiple Individual
Trees Growing in
Close Proximity: For
trees that have grown
close together, measure the DBH of each
stem and treat each
stem individually.
Multi-stem Split At
or Below DBH: For a
tree that has multiple
stems splitting below
DBH, measure the tree
at the narrowest point
between the root flare
and the split.
Stem Clusters: For
trees that are grown
too close together to
be treated as individual
trees, measure the
DBH of each stem and
add the measurements
together.
1. Determine the plant species to be treated and
the rate category it belongs to. If you’re having trouble
identifying your tree, contact the Tree Geeks for more
information.
2. Measure your tree. At 4½ feet above the ground,
wrap a measuring tape around the trunk of the tree.
Divide the measurement by 3.14 to get the diameter,
also known as DBH (diameter at breast height). See
Determining DBH chart, left.
If you have a tree with multiple stems, measure the diameter of the tree at the narrowest point between the root
flare and split of the stems.
For protocols, product guides, training videos
and technical support: Call 1-877-814-3274 or
visit us online: www.thetreegeek.com
Cambistat® Product Guide
Cambistat® Rate Card
Application Rate:
1. Use the rate chart to determine the total dosage
for the plant to be treated.
30% Missing
Canopy
30% Shared
Canopy
2. It is important to use at least the minimum
amount of water (11 parts water to 1 part
Cambistat®).
Additional water may be used to achieve even
distribution as long as the total dosage of
Cambistat® concentration is not changed.
Dosing Considerations:
It is important that Cambistat® be applied at the
rates recommended on the Tree Reference List,
(page 3).
Trees in the A, B, or C rate categories on the Tree
Reference List are the most sensitive and have
a smaller margin of error than the trees requiring
high dosages for regulation (D, E, F category trees).
Trees growing in confined growing spaces and
stressed trees are more prone to over-regulation.
Make sure dosing considerations are followed
closely when treating these with Cambistat®.
(fig 4)
(fig 1)
(fig 2)
(fig 3)
Restricted
Roots
Canopy Reduction
When applying Cambistat®, you need to look at the canopy of the tree and
compare it to a “normal” crown for that trunk diameter. While not a perfect
system, it will help you apply a more accurate dose.
If the tree is missing large branches from storms, over pruning, or canopy
suppression, estimate the percentage of crown missing and subtract this
percentage from your total dosage (fig 1).
Additional rate reductions need to be made when treating trees with shared
canopies (fig. 2 and 3).
Confined or Damaged Root Systems
Trees in sidewalks boxes, above-ground planters, and new transplants may
draw Cambistat® from the treatment area in a higher proportion than a tree
with a full root system. Reduce the dosage rate by 25% or more (fig. 4).
Tree Geek’s mission is to
encourage Do-it-Yourselfers
who want to care for the health
of their trees. We provide:
• Easy-to-use treatments
• Proven results
• Research based science
• Affordable solutions
Need Help? Call our Hotline: 1-888-637-6694 (8am-5pm CDT Mon - Fri) | info@thetreegeek.com | www.thetreegeek.com