Results Backed By Research
Exceprts from Two Research Studies Using Treegator® Bags
Horticultural Research Institute (2000)
A published study from the Horticultural Research Institute in Washington, D.C. showed that transplant shock following the transplanting of large trees can be minimized by applying a combination of selective pruning and irrigation with Treegator® Slow Release Watering Bags.
Effect of Transplanting on Water Relations and Canopy Development in Acer (Maple trees) Authors - Amy J. Barton and Christopher S. Walsh, Dept. of Natural Resource Sciences & Ldscp. Architecture - Univ. of Maryland
"During the first 2 weeks of April 1997, 24 field-grown Acer trees (12 Acer truncanum / Trident maple and 12 Acer tataricum ginnala / Amur maple) were transplanted using a 45 inch tree spade. This was prior to leaf emergence.
Trees were moved approximately 492 feet to a blocked study site. Three trees of each Acer species were also left in the original nursery rows as non-transplanted controls.
All trees were irrigated for the three days immediately following their transplant, using Treegator® Bags (Original model).
After this initial watering, three trees of each species were randomly assigned to one of four treatments.
Treatments were transplanted control, top pruning, water (provided by Treegator® drip irrigation) and water combined with top pruning.
By using a combination of leaf area index and transpiration rates, Acer (maple) trees that were selectively pruned and irrigated with Treegator® (Slow Release Watering Bags) exhibited less transplant shock than those that were only pruned or not pruned but were irrigated."
Excerpt above adapted from:
Journal of Environmental Horticulture 18;202-206 December 2000
Nursery & Landscape Projects (2001)
A published study by Bert Cregg with Michigan State University Department of Horticulture compared soil moisture, survival and growth of street trees with and without Treegator®, as well as compared the incidence of vandalism on Treegator® Bags in diverse neighborhoods in Lansing and Detroit, MI.
Influence of post-planting care on street tree performances: Biological and social factors
Author - Bert Cregg, Dept. of Hort. and Dept. of Forestry
"In cooperation with the city of Lansing and the Greening of Detroit, we installed Treegator® (Bags) on 27 trees in each city. City of Lansing or Greening personnel filled the Treegator® Bags periodically through the summer. They also hand-watered 27 trees in each city. In Lansing, 27 trees were not irrigated. In each city, the trees were divided among three neighborhoods and irrigation treatments (Treegator®, hand-watered or control) were assigned at random to trees within a neighborhood.
During the summer of 2001, we periodically measured soil moisture at zero to six inches and zero to 12 inches with a TDR soil moisture system. On each measurement run, we noted the presence or absence of the Treegator® (Bags) and any evidence of vandalism to the trees or Treegator® (Bags).
Irrigation either by hand or using the Treegator® (Bags) increased soil moisture compared to the un-watered control trees in Lansing. Between water treatments, there was little difference in soil moisture near the surface, but irrigation with the Treegator® (Bags) increase soil moisture deeper in the (soil) profile.
Incidence of vandalism to the Treegator® Bags was low. In each city, one of the 27 Treegator® Bags installed was removed (2 of 54 total). In Detroit, the one Treegator® that was tampered with was moved from a tree in front of a vacant lot to a tree in front of a residence. We did not detect any other evidence of vandalism or tampering.
From the data to date, we conclude that the likelihood of vandalism to Treegator® (Bags) is relatively low (less than 4 percent overall) across a range of neighborhoods in Lansing and Detroit. Watering with the Treegator® (Bags) can improve soil moisture deeper in the (soil) profile than watering by hand."
- > Quick & easy to set-up and fill.
- > 100% absorption with no run-off.
- > Fits up to 8" caliper trees.
- > Deep saturation with every fill.
- > Reduces time spent at tree.
- > Promotes deep root growth.
- > Fill just 1 to 2 times per week.
- > 3-year or 5-year limited warranty.
- > No tools, stakes or digging required.
- > Easy to move and/or store.
- • Ideal for new shade or street trees
- • Reduces transplant and drought shock
- • Quick and easy to set-up and fill
- • 100% water absorption with no run-off
- • Reduces time spent at tree by up to 80%
- • Promotes deep root growth
- • Can be used with water-soluble nutrients
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ROOTS® Solupak™ Root Stimulant Pouches- Just drop a pouch into any Treegator® Bag to water and feed your new tree at the same time.
Hydretain™ ES Plus- Add to any Treegator® Bag to cut watering frequency by up to 50%. Use also on turf, gardens, planters, etc
Other watering bags may look like, or claim to work as well or better than a Treegator® Slow Release Watering Bag... But Treegator® is the ONLY watering bag for trees that has been used and trusted by industry professionals worldwide since 1991.