Early warning signs of damage are a yellowing and thinning of foliage at the upper crown of the tree and d shaped holes in the trunk where the borer larvae have made entry.
River birch tree borers.
Dark green foliage turns a beautiful buttery yellow in the fall.
But healthy trees aren t off.
Attractive salmon pink to reddish brown bark exfoliates to reveal lighter inner bark.
Below learn how to identify tree borers and get info on treatment.
River birch is a popular fast growing native tree for the home landscape.
The four wood boring insects mentioned below attack a wide range of trees.
Generally the bronze birch borer is the.
Usually native borers like the bronze birch borer seek out trees that are already stressed i e by drought disease or maybe a pruning injury.
The species is valued for its relatively rapid growth tolerance of wetness and some drought unique curling bark spreading limbs and relative resistance to birch borer.
This species is resistant to bronze birch borer bbb.
Wood eating beetles do exactly as their name describes they eat away at the river birch betula nigra leaving behind a damaged and unhealthy tree.
The bronze birch borer is the most threatening pest of ornamental birch especially white barked varieties and trees under stress.
But as a landscape tree it can be planted almost anywhere in the u s.
The river birch has not yet reached the popularity of many maples and oaks but it is well on its way.