01 جنوری 1976 This book and its companion volume on diseases are reference manuals that cover the major biotic pests and environmental problems associated with woody ornamental plants. This volume covers arthropod pests, providing essential information about most of the more common and important insects,...
01 جنوری 2005 This book is both an authoritative reference book and a powerful diagnostic tool. Organized according to type of disease-inducing agent, the second edition is also designed to be helpful in classroom and field instruction. Symptoms, signs, and cycles of hundreds of diseases are described and...