Cannabis use goes back as far as 10,000 years, based on the archeological discovery of hemp cloth and rope and the documentation of medicinal plants and texts, but since the early twentieth century, cannabis use for medicinal and intoxicant purposes has been highly regulated worldwide. Researchers therefore have had limited legal flexibility in working on cannabis, despite the availability of sophisticated means for pathogen identification.

The editors and authors of Compendium of Cannabis Diseases have explored, confirmed, and characterized the pathogens of cannabis and compared their findings with those reported in historical literature. Sources are cited in every chapter to help readers distinguish between recently confirmed causal agents and those documented in historical texts. Each chapter also relies on the availability of literature specific to cannabis, not literature with more general coverage of pathogens.

Given the wide range of cannabis types and production systems, as well as the evolving markets and consequent cultivar introductions, cannabis is susceptible to many pathogens. To ensure Compendium of Cannabis Diseases provides current and timely information about these pathogens and the diseases they cause, the editors and authors of this robust, international guide will provide updates as peer-reviewed data become available.

Compendium of Cannabis Diseases is the first book in the APS Diseases and Pests Compendium Series published in a progressive format: Chapters will be published online as they are completed and updated to reflect current research. To maintain professional quality, all the chapters in a progressive compendium will undergo the same peer-review and technical edit stages as other APS PRESS books. The complete table of contents is published online with the first release of chapters. Chapters to be published in subsequent releases are iden¬tified as “forthcoming,” and the contents is updated each time more chapters are added. When all the chapters have been added and the online version of the book is complete, a print version of the compendium will be produced.

APS PRESS designed this progressive model to streamline publication and thereby provide users with greater accessibility to timely information and flexibility in receiving it. Publishing content as it is available will ensure readers have up-to-date information about the diagnosis, epidemiology, and management of cannabis diseases.

Access to the Diseases and Pests Compendium Series Online through personal and library subscriptions includes Compendium of Cannabis Diseases and will include all future progressive compendia. Individual chapters of progressive compendia also will be available by download. Subscribe to follow each new book as it unfolds online and to explore all the digital offerings of APS PRESS.

Compendium of Cannabis Diseases

Front Matter

Introduction to the Progressive Compendium

SECTION 1: Infectious Diseases Caused by Bacteria

Introduction / L. D. Thiessen
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Bacterial Blight / L. D. Thiessen and S. J. Martins
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Crown Gall (Forthcoming)

Serratia Leaf Spot / L. D. Thiessen
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Xanthomonas Leaf Spot / L. D. Thiessen and S. J. Martins
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Diseases Caused by Phytoplasmas and Spiroplasmas (Forthcoming)

SECTION 2: Infectious Diseases Caused by Fungi

Introduction / L. D. Thiessen
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Anthracnose / L. D. Thiessen and N. W. Gauthier
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Cercospora Leaf Spot / N. W. Gauthier, P. Price, and V. P. Doyle
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Exserohilum Leaf Blight (Forthcoming)

Fusarium Crown and Root Rot / J. M. McPartland, Z. K. Punja, and L. D. Thiessen
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Fusarium Head Blight / H. Smith, M. Munir, D. Szarka, and N. Gauthier
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Fusarium Wilt / K. O’Donnell, J. M. McPartland, and L. D. Thiessen
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Gray Mold / J. M. McPartland and L. D. Thiessen
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Hemp Leaf Spot / N. W. Gauthier and D. Szarka
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Hemp Rust (Forthcoming)

Lasiodiplodia Stem Canker (Forthcoming)

Powdery Mildew / L. Tymon, J. M. McPartland, L. D. Thiessen, and N. W. Gauthier
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Rhizoctonia Sore Shin and Root Rot / J. M. McPartland and M. A. Cubeta
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Septoria Leaf Spot / D. Szarka, H. Smith, and N. Gauthier
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Southern Blight / Z. Mersha and Z. Hansen
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Terminal Dieback and Branch (Forthcoming)

White Mold / D. Joly
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SECTION 3: Infectious Diseases Caused by Nematodes

Lesion Nematodes / E. Bernard
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Root-Knot Nematodes / E. Bernard
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Stem Nematode / E. Bernard
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Minor Nematodes / L. Núñez-Rodriguez and I. Zasada
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SECTION 4: Infectious Diseases Caused by Oomycetes

Downy Mildew / M. Bolt and J. Beckerman
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Pythium Root and Crown Rot / J. Beckerman
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Phytophthora Root Rot and Stem Rot (Forthcoming)

SECTION 5: Infectious Diseases Caused by Viruses

Introduction / S. Zacate
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Beet Curly Top / J. Withycombe, M. Schmidtbauer, J. MacWilliams, and P. Nachappa
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Hop Latent Viroid Infection / L. Hackenberg, J. MacWilliams, and P. Nachappa
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Minor Viruses / H. Rivedal, J. Rupp, M. Bruce, and P. Nachappa
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Appendix

Glossary