Most tree problems in Tennessee are related to water; either too little as we have recently experienced during droughts, or too much. Our climate has been highly variable in the last decade with warmer average temperatures and wider fluctuations in precipitation with moisture deficits and excesses. Mature trees can lose hundreds of gallons of water per day through its leaves during the summer. When trees become stressed during moisture deficits, a thoughtful watering regime is necessary.
Below are a few questions often asked when trees are stressed by water deficits. Answers to those questions follow.
What are a few signs of water-related stress? Tree symptoms that indicate stress from water deficits are browning of leaf edges, absence of new growth in the spring, and dieback of leaves, twigs and branches.
How do I know the tree needs water? Dig or probe the soil 6 to 12 inches deep near the dripline of the tree. Is the soil moist? If so, do not water and wait a week or so to sample again. Contrary to popular belief, most tree roots and root biomass occurs in the upper 18 inches of the soil, not in a tap root.
How often should I water? The answer depends on the species of tree and the soil texture and structure.... read the rest of the story by Subscribing now.