The four wood boring insects mentioned below attack a wide range of trees.
River birch tree borers.
Below learn how to identify tree borers and get info on treatment.
Attractive salmon pink to reddish brown bark exfoliates to reveal lighter inner bark.
Dark green foliage turns a beautiful buttery yellow in the fall.
The river birch has not yet reached the popularity of many maples and oaks but it is well on its way.
But healthy trees aren t off.
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.
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.
This species is resistant to bronze birch borer bbb.
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 bronze birch borer typically attacks trees which are already stressed or in decline.
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.
Generally the bronze birch borer is the.
A birch infested with bronze birch borer will start showing dieback in the crown increasing in severity as the infestation continues often leading to death of the tree.