Compendium of Brassica Diseases
This highly anticipated color diagnostic guidebook is a thorough, authoritative, and practical reference for anyone who needs to diagnose and manage disease problems in brassica crops destined for vegetable markets, seeds, oil, and condiments. Fifty-nine international disease experts contributed to the coverage of more than a dozen brassica crops: Cabbage, Cauliflower, Broccoli, Brussels Sprouts, Kohlrabi, Greens, Asian Mustard Greens, Chinese Broccoli (Chinese Kale), Chinese Cabbage, Horseradish, Radish, Turnip, Rutabaga, Oilseed Rape (Canola, Rapeseed), and Culinary or Condiment Mustards.
The book covers diseases caused by fungi, bacteria, mollicutes, viruses, and nematodes, as well as noninfectious damage to brassica crops such as herbicide injury, nutrient deficiencies, postharvest disorders, genetic abnormalities, and environmental damage. Plant pathologist-reviewed color photographs provide diagnostic guidance, and current approaches to disease management are provided at the end of each section.
The disease sections are preceded by a helpful introduction to the taxonomy of the various Brassica species and the genetic relationships of this extraordinarily diverse group of plant types. Brassicas are widely cultivated throughout the world as leaf or root vegetable crops, for vegetable oil production, as fodder crops for livestock feeding, or as condiments and spices. They are increasingly important economic crops, and knowledge of their diseases is critical as is evidenced by the disease problems associated with the large increase in global production of both vegetable and oilseed brassicas.
This compendium will be essential for extension scientists working in agriculture and horticulture and for other advisors, including individuals in regulatory agencies, as well as those in the private sector dealing with seed and fungicide retail and with disease scouting. The book is also useful for brassica crop growers, plant pathology and agriculture science teachers, students, research scientists, and plant breeders.
Contents
art I. Introduction
Taxonomy and Genetic Relationships of Brassica Species
Brassica
Species Relationships and Origins of Crop Brassicas
Brassica oleracea
Brassica rapa
Brassica nigra
Brassica napus
Brassica carinata
Brassica juncea
Crambe abyssinica
Eruca vesicaria subsp. sativa (E. sativa)
Raphanus sativus
Production Management
General Considerations
Vegetable Crops
Cabbage
Cauliflower, Broccoli, and Brussels Sprouts
Kohlrabi
Greens
Asian Vegetable Brassica Crops
Asian Mustard Greens
Chinese Broccoli (Chinese Kale)
Chinese Cabbage
Root Crops
Horseradish
Radish
Turnip and Rutabaga
Oilseed Crops
Oilseed Rape (Canola, Rapeseed)
Culinary or Condiment Mustards
Part II. Infectious Diseases
Diseases Caused By Fungi and Oomycetes
Alternaria Diseases (Black Spot, Gray Leaf Spot, Pod Spot)
Anthracnose
Black Leg (Phoma Stem Canker)
Black Root
Clubroot
Downy Mildew
Botrytis Gray Mold
Light Leaf Spot
Phytophthora and Pythium Damping-off
Phytophthora Root Rot
Phytophthora Storage Rot
Powdery Mildew
Rhizoctonia Diseases (Damping-Off, Wirestem, Brown Girdling Root Rot, Crater Rot, Head Rot)
Ring Spot
Sclerotinia White Mold (Cabbage Drop, Stem Rot, Watery Soft Rot)
Verticillium Wilt
White Leaf Spot
White Rust
Yellows (Fusarium Wilt)
Diseases Caused By Bacteria
Bacterial Leaf Spot
Bacterial Soft Rot
Black Rot
Diseases Caused By Mollicutes
Aster Yellows
Brittle Root of Horseradish
Diseases Caused By Viruses
Beet Western Yellows (Turnip Yellows Luteovirus)
Cauliflower Mosaic
Cucumber Mosaic
Radish Mosaic
Ribgrass Mosaic
Turnip Crinkle
Turnip Mosaic
Turnip Yellow Mosaic
Other Virus Diseases
Diseases Caused By Nematodes
Cyst Nematodes
Root-Knot Nematodes
Other Nematodes
Part III. Noninfectious Diseases
Air Pollution
Disorders Related To Environmental Effects
Black Speck of Cauliflower
Bolting or Buttoning of Cauliflower, Broccoli, and Cabbage Cold Temperature Injury
Drought Injury
Growth Scars and Tissue Splitting
Hail Injury
Heat Tolerance in Broccoli and Cauliflower
Hollow Stem
Intumescence
Mechanical Injury
Oedema
Petiole Freckles (Gomasho) of Chinese Cabbage
Riciness of Cauliflower
Root Cavities of Daikon (Lo Bok)
Salt Injury
Soil Compaction Problems
Soil Moisture Injury
Strangles (Windwhip)
Winter Decline Syndrome
Yellow Eye (Starring, Cat Eye)
Genetic Abnormalities
Herbicide Injury
Herbicide Injury Due To Improper Timing or Rate
Herbicide Injury Due To Unintended Exposure
Herbicide Injury Due To Carry-Over
Nutritional Deficiencies
Postharvest Disorders of Vegetable Brassicas
Glossary
Index
