Rainbow Treecare
What is Cambistat?
Cambistat is the newest tree growth regulator with the active ingredient paclobutrazol. It is highly effective at reducing the growth rate of trees over a three year period, and thus is an excellent method of reducing tree maintenance costs. Extensive research and field trials have also shown that indirect effects on growth regulation can provide numerous health benefits for trees. By reducing the amount of energy allocated to shoot growth, more energy/carbon/substrates are available for other uses. Research has shown trees treated with Cambistat have the following responses:
Tree growth rate is reduced between 40 - 60 % for three years with one treatment of Cambistat®. Improve drought and heat resistance Higher tolerance to disease Increase health and longevity
*Courtesy Rainbow Treecare
Cambistat® is a soil-applied tree growth regulator that reduces tree growth 40% to 60% over a three year period
Cambistat Increases the Lifespan and Durability of Yard Trees
Cambistat works by making the tree more conservative. Slower growth rate means energy is shunted into increased root mass, increased defenses, thicker leaves, and increased storage. A slower growing tree needs fewer resources - including water, minerals and energy. This reduced resource need raises the threshold of stress needed to injure the tree. For many mature yard trees, the deficiency level of the growing site is already past this stress threshold. By reducing the tree's growth rate - health and longevity can be restored
*Courtesy Rainbow Treecare
Stimulating Fibrous Root Growth
Re-directing Excess Energy
When Cambistat reduces the growth rate of the tree, it frees up energy, carbon and other substrates that would have been used for that growth. These get shunted back into the tree and are available for use for other functions. One of the responses by the tree is an increase in fibrous root growth.
*Courtesy Rainbow Treecare
Cambistat increases fibrous root growth, but decreases woody root growth
Root to Shoot Ratio
A major issue with trees growing in lawns and other urban sites is a poor root to shoot ratio. This basically means that compared to trees growing in more natural settings, there is more top growth as compared to fibrous roots. This has obvious repercussions that lead to trees that are more prone to stress. By reducing the top growth and increasing the fibrous root growth, applying Cambistat will increase this important ratio.