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Compendium of Rose Diseases and Pests, Second Edition
By R. Kenneth Horst and Raymond Cloyd

A must have for any rose grower, from casual gardener to serious rosarian!

The Compendium of Rose Diseases and Pests, Second Edition has been thoroughly updated, expanded, and given a new format with color throughout to provide the reader with the most current and relevant information available in a user-friendly manner. The new second edition includes information on insects and mites with 68 images to help identify these pests and the damage they cause. 

Features of the new Compendium of Rose Diseases and Pests, Second Edition

  • Color photographs of infectious disease symptoms, now inset with the text, enable users to accurately identify diseases that affect roses and quickly understand the causes, life-cycles, and treatment approaches available.
  • Noninfectious symptoms, such as those caused by pollution and toxicities, are covered and illustrated with color photographs that help distinguish them from bacterial, fungal, nematode, and viral symptoms.
  • A new color section on pests and the symptoms they cause helps users to identify the insects and mites that attack roses.
  • Discussions of pest and disease management measures stress timeless principles and cultural practices ensuring that this reliable sourcebook will help maintain healthy rose plants for many years to come.
  • A genealogy map of rose species provides a guide to development of hundreds of rose species, along with general growing tips and practices.

The purpose of this new edition is to aid plant pathologists, entomologists, horticulturists and other related specialists as well as casual gardeners and rosarians, in the diagnosis of rose diseases and pests. It is designed to serve as a practical reference and resource for rose growers and gardeners, students, researchers, educators, crop disease and pest consultants, advisors in state and federal government and regulatory agencies, agribusiness representatives, the pest control industry, county agricultural and cooperative extension agents, and area crop specialists worldwide. 

Authors R. Kenneth Horst and Raymond Cloyd have distinguished backgrounds in writing on diseases and insect problems associated with ornamental plants. The senior author, Dr. Horst is professor emeritus of plant pathology from Cornell University. He has been an active educator, researcher and writer on ornamental diseases since the early 1960s. His writing includes more than 230 publications in scientific and trade journals and several books including the Compendium of Chrysanthemum Diseases. Dr. Horst is also known for developing a number of environmentally responsible disease control products, including GreenCure fungicide.

The co-author, Raymond Cloyd, is well recognized for research and extension publications on insects or ornamental plants since the mid 1990s. He has held positions in private industry and authored a book on IPM for gardeners. 

2007; 96 pages; 151 color photographs; 19 black and white illustrations; ISBN 978-0-89054-355-9; (1 pound)



            Rose Parentage/Hybids
            Cultivar Classification
            General maintenance/Production Practices

Rose Diseases

            Infectious Diseases
            Noninfectious Diseases/Disorders
            Disease and Pest Management

Part I. Infectious Diseases

Diseases Caused by Fungi

            Powdery Mildew
            Black Spot
            Verticillium Wilt
            Downy Mildew
            Brand Canker
            Common Canker (Rose Graft Canker)
            Brown Canker
            Black Mold
            Botrytis Blight
            Canker (Dieback)
            Miscellaneous Diseases Caused by Fungi

Diseases Caused by Bacteria

            Crown Gall
            Hairy Root

Diseases Cause by Viruses or Graft Transmissible Organisms

            Rose Mosaic
            Strawberry Latent Ringspot
            Rose Streak
            Rose Rosette
            Rose Ring Pattern   
            Rose Wilt
            Rose Spring Dwarf
            Rose Leaf Curl
            Rose Flower Break
            Rose Flower Proliferation
            Tobacco Streak Virus

Diseases Caused by Nematodes

Part II. Noninfectious Diseases

Physiologic Problems

            Bent Neck (Vascular Occlusion)

Environmental Imbalances

            Petal Blackening in Baccara Roses
            Petal Bluing in Baccara Roses
            Heat and Moisture Stress
            Oxygen Deficiency

Air Pollution

            Mercury Vapor
            Paint Volatiles

Pesticide Toxicity

Nutritional Deficiencies

Nutritional Toxicities


Part III. Insect and Mite Pests 

            Rose Aphid
            Japanese Beetle
            Twospotted Spider Mite
            Rose Midge
            Rose Sawfly
            Flower Thrips
            Rose Leafhopper
            Rose Chafer
            Rose Curculio
            Fuller Rose Beetle
            Western Flower Thrips
            Miscellaneous Rose Pests   



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