Spanish moss does not kill trees, but it can block sunlight from getting to the inner branches and prevent photosynthesis. Spanish moss may weigh down and break branches. If Spanish moss is affecting the health of a tree, remove the moss to allow sunlight into the interior of the tree.
About this Author
Diane Watkins has been writing since 1984, with experience in newspaper, newsletter and web content. She writes two electronic newsletters and content around the web. Watkins has a Bachelor of Science degree in chemistry from Clemson University. She has taken graduate courses in biochemistry and education.