Compendium of Hop Diseases and Pests
Compendium of Hop Diseases and Pests is a comprehensive and authoritative account of diseases and pests of hops as well as numerous other disorders and injuries that impact this valuable specialty crop. This compendium is a practical reference for anyone interested in healthy, high-quality hops, which in addition to brewing, is showing promise for use in sugar processing and as a preservative in ethanol production and for its potential use as an antimicrobial additive in animal feed.
More than 140 color images are presented with expert scientifically peer-reviewed descriptions of the identifying characteristics of disease and pest symptoms and their causal agents. This book also provides an overview of the taxonomy and botanical traits of the genus Humulus. It provides insight into cone uses and chemistry, methods for hop production, and an extensive list of hop cultivars and their characteristics. The description of each disease or pest includes a general account of its importance and world distribution, symptoms, causal organism or agent, disease cycle and epidemiology, management, and selected references. The references document the descriptions and provide resources for additional information.
Compendium of Hop Diseases and Pests assists in the diagnosis of hop diseases and pests in the field, laboratory, or diagnostic clinic and provides recommendations for management of hop diseases and pests. This compendium will be useful to plant pathologists, entomologists, nematologists, crop production specialists, growers, diagnostic clinicians, students, regulatory agents, crop consultants, agribusiness representatives, educators, researchers, and others interested in the recognition or management of hop diseases and pests throughout the world.
Benefits of Compendium of Hop Diseases and Pests:
• Visually identify your problems that affect hop plants or cones with 147 color photographs of diseases, pests, and other disorders.
• Coverage on most diseases and pests affecting hops throughout the world which is helpful when analyzing a new disease introduced to a specific region
• A useful broad reference for home brewers particularly those interested growing their own hops. This compendium contains sections on hop taxonomy, chemistry, and production with an extensive listing of hop cultivars and their characters.
• Identify growth abnormalities that are not caused by plant pathogens or insects with expert descriptions and color photographs of symptoms of nutrient disorders and plant injury.
CONTENTS
Introduction
The Genus Humulus
Cone Uses and Chemistry
Hop Production
Hop Cultivars and Breeding
PART I: Infectious/Biotic Diseases
Diseases Caused by Fungi and Oomycetes
Alternaria Cone Disorder
Armillaria Root Rot
Ascochyta Leaf Spot
Black Root Rot
Cone Tip Blight
Downy Mildew
Fusarium Canker
Gray Mold
Powdery Mildew
Red Crown Rot
Septoria Leaf Spot
Sclerotinia Wilt
Sooty Mold
Verticillium Wilt
Fungal Diseases and Pathogens of Minor Importance
Diseases Caused by Viruses and Viroids
Apple fruit crinkle viroid
Apple mosaic
Arabis mosaic
American hop latent virus, Hop latent virus, and Hop mosaic virus
Humulus japonicus latent virus (Humulus japonicus virus)
Hop latent viroid
Hop stunt
Viruses of Minor Importance
Diseases Caused by Nematodes
Cyst Nematode
Other Nematodes Associated With Hop
Diseases Caused by Bacteria and Phytoplasma
Crinkle Disease
Crown Gall
Bacterial Diseases of Minor Importance
Hop Shoot Proliferation
PART II: Arthropod Pests
California Prionus Beetle
Damson-Hop Aphid
Garden Symphylan
Hop Flea-Beetle
Hop Looper and Other Lepidoptera
Root Weevils
Rosy Rustic Moth
Two-Spotted Spider Mite
Insect Pests of Minor Importance
White Grubs
Western Spotted Cucumber Beetle
Wireworms
PART III: Post-Harvest Disorders and Diseases
Bale Self-Heating
Cone Early Maturity
Non-Infectious Abiotic Disorders
Nutrient Imbalances
Injuries Caused by Environmental Factors
Chemical Injury
Heptachlor Wilt
Glossary
Index
