FAQ - Answer
The tubes are intended to provide increase CO2 concentrations to improve tree growth. If the new trees are seedlings, you can irrigate them weekly for the first summer and that will increase growth dramatically. After the first year monthly watering will increase growth. One question is to ask, “Protect the trees from what?” If the trees are in a secure location you may not need additional protection. Other screening materials can be used e.g. poultry wire, window screening, and milk cartons. Again, it depends on what is causing the risk to the trees. Providing a weed free zone around the young trees is also important. Manually scalping weeds, using mulch, or an herbicide to create a 2 to 4 foot weed free radius around the trees will help conserve moisture, and reduce rodent browsing pressure on the trees.