A comprehensive manual used for the identification of insects, diseases and nutritional deficiencies in trees. The manual has been UPDATED for 2010 to include many NEW Insects and Diseases. INCLUDED in the 2010 UPDATE is MAUGET’S NEW LIQUID LOADABLE PRODUCT LINE. This manual contains numerous in depth descriptions along with illustrations to better aid you in the diagnosis of insect problems, pathogenic diseases and physiogenic diseases in trees.