Download or read book Major Forest Insect and Disease Conditions in the United States written by United States. Forest Service and published by Government Printing Office. This book was released on 2015-09-10 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report focuses on the 20 major insects and diseases that annually cause defoliation and mortality in forests of the United States. This 2013 edition contains updated charts, tables, and maps, plus, it provides a national summary of the major changes and status of these 20 forest pests. "