The first thing you have to do with paper birch is to identify that it is indeed a paper birch and not a river birch. These two trees are often mistaken for each other. They have completely different diseases and insects that attack them so it is key to know that paper birch has white bark. It often grows in several different sections like its relative the river birch. They are native to completely different solid so you will find that one tree gets a set of diseases and another get completely different diseases and some of the diseases affect the whole species of birch trees.
The most known insect that kills paper birch is the bronze birch borer. It looks identical to the emerald ash borer except it is bronze and it kills paper birch trees. It does not affect river birch. Weird huh?? Along with the bronze birch borer there are several other insects that harm paper birches. Just to name a few there are tent caterpillar (shown to right), leaf skeleton, sawflies, birch leafminer, gypsy moth and many more. Physical deformities such as the canker shown to the right can cause major problems in paper birch trees.
Several different fungus affect paper birch. Most of these diseases are undetectable because they are in the root system of the tree. Cases of fungus have defoliation on the crown of the tree. Here are some things to watch for:
Die back in sections
Tents similar to the ones on the right of the page