Post by davidtuthes on Jan 27, 2018 12:48:20 GMT -8
Dry soil conditions can significantly reduce the life span of your valuable landscape trees. Because they are difficult and expensive to replace, your trees need attention during and after periods of drought.
Below are symptoms and things you can do to help relieve drought stress.
Symptoms:
wilted foliage
a sparse canopy of off-color and undersized leaves
leaf scorch
yellowing
leaf drop
premature fall coloration
Closer inspection will reveal limited twig growth and small, poorly formed buds. Growth for several seasons may be stunted even if there is sufficient rainfall.
Perhaps more life-threatening than anything to a tree suffering drought is invasion by borers and disease-causing organisms that can happen as the tree is recuperating and still in a weakened state. For instance, elms succumb more quickly to Dutch elm disease and white-barked birches are more susceptible to bronze birch borer during drought. In the South, water oaks, red oaks and willow oaks are more susceptible to hypoxylon canker and hardwood borers, while pines are more likely to become infested by pine bark beetles during drought.
Below are symptoms and things you can do to help relieve drought stress.
Symptoms:
wilted foliage
a sparse canopy of off-color and undersized leaves
leaf scorch
yellowing
leaf drop
premature fall coloration
Closer inspection will reveal limited twig growth and small, poorly formed buds. Growth for several seasons may be stunted even if there is sufficient rainfall.
Perhaps more life-threatening than anything to a tree suffering drought is invasion by borers and disease-causing organisms that can happen as the tree is recuperating and still in a weakened state. For instance, elms succumb more quickly to Dutch elm disease and white-barked birches are more susceptible to bronze birch borer during drought. In the South, water oaks, red oaks and willow oaks are more susceptible to hypoxylon canker and hardwood borers, while pines are more likely to become infested by pine bark beetles during drought.