Hemp and cannabis, both belonging to Cannabis sativa, have emerged as some of the most valuable crops because of their multiple functionalities - industrial, medicinal, and recreational uses. Like all other crops, they are at risk of diseases and pests. In certain cases, an entire hemp field can fail due to unexpected disease. As a new and highly regulated crop, research on Cannabis crop diseases is scarce, and the science of plant diagnostics is not well covered in the literature. Taking hemp/cannabis as a model crop, the book illustrates how to diagnose a disease problem and how to manage it effectively. It presents real disease cases encountered during crop production, and explains methods of diagnosis, both in the field and in the lab, in order to find out the cause(s).

Hemp is enjoying a worldwide resurgence. This book combines a useful review of the hemp pest and disease literature published over the past 50 years, with up-to-date information on modern biological control techniques. Each pest and disease organism is presented in the same format, covering range and economic impact, symptoms, life history, diagnosis, and both new and old techniques for biological control and chemical control. Easy to use keys are included for rapid identification of the most common pests. Introductory chapters describe the general principles of plant protection, requirements for healthy plant growth, and taxonomy of parasites and pathogens.

A wide range of pests, diseases, and nutrient deficiencies can zap the vitality of any cannabis garden. Inexperienced gardeners often rely on pesticides that are not registered for edibles, as well as other harmful or ineffective techniques that can render plants unusable. This resourceful guide comes to the rescue, showing gardeners how to win back a garden and nurture plants to their full potential, using safe, organic, and integrated pest management techniques. In addition to providing readers with the know-how to get their plants healthy, Marijuana Pest and Disease Control highlights design and garden practices to prevent future infections. Author Ed Rosenthal gears the book to gardeners at every level of experience and in any growing situation from indoor, outdoor, and greenhouse to hydro and terrace gardens. Extensive color photographs and illustration help identify the exact problem.

A simple step-by-step system for identifying, repairing, and preventing problems with marijuana plants. What's Wrong with My Marijuana Plant? is the first problem-solving book for marijuana growers with an effective and easy-to-use visual diagnostic system pioneered by Deardorff and Wadsworth for identifying pest, disease, and environmental problems by symptom. What are those rusty spots on your leaves? What bug is eating your buds? Why are your sativa sprouts covered in fuzz? Find out fast AND learn how to fix it! This book contains all-organic solutions (vitally important to protect your health, the health of your plants, and the environment) plus best growing practices to avoid problems before they start. Written in easily understandable, non-technical language and heavily illustrated with precise photography to allow rapid and accurate diagnosis, this is an essential resource for beginning and experienced growers alike.

This book highlights current Cannabis research: its botany, authentication, biotechnology, in vitro propagation, chemistry, cannabinoids biosynthesis, metabolomics, genomics, biomass production, quality control, and pharmacology. Cannabis sativa L. (Family: Cannabaceae) is one of the oldest sources of fiber, food and medicine. This plant has been of interest to researchers, general public and media not only due to its medicinal properties but also the controversy surrounding its illicit use. Cannabis has a long history of medicinal use in the Middle East and Asia, being first introduced as a medicine in Western Europe in the early 19th century. Due to its numerous natural constituents, Cannabis is considered a chemically complex species. It contains a unique class of terpeno-phenolic compounds (cannabinoids or phytocannabinoids), which have been extensively studied since the discovery of the chemical structure of tetrah ydrocannabinol (Δ9-THC), commonly known as THC, the main constituent responsible for the plant’s psychoactive effects. An additionally important cannabinoid of current interest is Cannabidiol (CBD). There has been a significant interest in CBD and CBD oil (extract of CBD rich Cannabis) over the last few years because of its reported activity as an antiepileptic agent, particularly its potential use in the treatment of intractable epilepsy in children.

Viral Diseases of Field and Horticultural Crops details the fundamental and applied aspects of the viral diseases of field and horticultural crops. The book opens with a historical introduction to plant virology, important plant virologists, and landmarks. It continues with systematic coverage of viral diseases, their economic significance, disease symptoms, host range, mode of transmission, diagnostic techniques, geographic distribution, epidemiology, yield losses, and control and management of the disease. Contributions from an international group of virologists with a wide range of academic, research, professional, and specialized backgrounds in plant virology makes Viral Diseases of Field and Horticultural Crops a comprehensive and must-have resource for those engaged in the study and research of plant virology, microbiology, and plant pathology particularly viral diseases and their impact on field and horticultural crops. - Provides virus characterization according to the disease pattern and symptoms they cause - Covers viral diseases of cereals, oil seeds, legumes, commercial crops, spices and condiments, medicinal and aromatic crops, forage crops, vegetable crops, fruit crops, tree nuts, among others - Discusses advances like applications in nanotechnology, molecular techniques for the detection and characterization of plant viruses, and the development of technologies for detecting plant viruses

Some people suffer from chronic, debilitating disorders for which no conventional treatment brings relief. Can marijuana ease their symptoms? Would it be breaking the law to turn to marijuana as a medication? There are few sources of objective, scientifically sound advice for people in this situation. Most books about marijuana and medicine attempt to promote the views of advocates or opponents. To fill the gap between these extremes, authors Alison Mack and Janet Joy have extracted critical findings from a recent Institute of Medicine study on this important issue, interpreting them for a general audience. Marijuana As Medicine? provides patientsâ€"as well as the people who care for themâ€"with a foundation for making decisions about their own health care. This empowering volume examines several key points, including: Whether marijuana can relieve a variety of symptoms, including pain, muscle spasticity, nausea, and appetite loss. The dangers of smoking marijuana, as well as the effects of its active chemical components on the immune system and on psychological health. The potential use of marijuana-based medications on symptoms of AIDS, cancer, multiple sclerosis, and several other specific disorders, in comparison with existing treatments. Marijuana As Medicine? introduces readers to the active compounds in marijuana. These include the principal ingredient in Marinol, a legal medication. The authors also discuss the prospects for developing other drugs derived from marijuana's active ingredients. In addition to providing an up-to-date review of the science behind the medical marijuana debate, Mack and Joy also answer common questions about the legal status of marijuana, explaining the conflict between state and federal law regarding its medical use. Intended primarily as an aid to patients and caregivers, this book objectively presents critical information so that it can be used to make responsible health care decisions. Marijuana As Medicine? will also be a valuable resource for policymakers, health care providers, patient counselors, medical faculty and studentsâ€"in short, anyone who wants to learn more about this important issue.

Expanded and completely rewritten with information on grow rooms, greenhouses and outdoor growing, medicinal cannabis, security, lighting, fertilisers, hydroponics, Sea of Green, seeds, seedlings, vegetative growth, mother plants, cloning, flowering, harvesting and curing, diseases, pests and hash making. More than 1100 full colour photos and drawings illustrate every detail and numerous simple cultivation solutions make for easy appeal to novice growers. Readers will learn how to achieve the highest, most potent yields, even with limited space and budget.

Handbook of Cannabis and Related Pathologies: Biology, Pharmacology, Diagnosis, and Treatment is the first book to take an interdisciplinary approach to the understanding of cannabis use and misuse. Recent worldwide trends toward decriminalizing marijuana for medical use have increased legal use of the drug and recreational use remains high, making cannabis one of the most commonly used drugs. Cannabis has a wide range of adverse neurological effects, and use and abuse can lead to physical, social, and psychopathological issues that are multifarious and complex. Effective understanding and treatment requires knowledge of the drug's effects from across scientific disciplines. This book provides an overview of the biological and pharmacological components of the cannabis plant, outlines its neurological, social, and psychopathological effects, assists in the diagnosis and screening for use and dependency, and aids researchers in developing effective treatments for cannabis-related issues and disorders. Fully illustrated, with contributions from internationally recognized experts, it is the go-to resource for neuroscientists, pharmacologists, pathologists, public-health workers, and any other researcher who needs an in-depth and cross-disciplinary understanding of cannabis and its effects. - Comprehensive chapters include an abstract, key facts, mini dictionary of terms, and summary points - Presents illustrations with at least six figures, tables, and diagrams per chapter - Provides a one-stop-shopping synopsis of everything to do with cannabis and its related pathology, from chemicals and cells, individuals and communities, and diagnosis and treatment - Offers an integrated and informed synopsis of the complex issues surrounding cannabis as a substance, its use, and its misuse