From the Preface:

In this Compendium of Tobacco Diseases we have assembled current knowledge on the nature, identification, and management of tobacco diseases throughout the world. It should be useful as a practical reference and resource for growers, students, researchers, educators, and personnel in agribusiness, extension, and government. Major emphasis is on the correct identification of diseases of tobacco; for this reason, numerous illustrations, black and white and color, are included. Life cycles have been illustrated to aid in understanding how diseases develop within a growing season, and a brief discussion of the epidemiology of each disease will help users of the compendium understand why certain management practices are recommended for a given disease.

From the Introduction:  

Tobacco is grown for commercial purposes in at least 97 countries around the world. Although tobacco is of tropical origin, current production of most types is concentrated in the temperate zones. Total commercial production of tobacco on approximately 4.3 million hectares, with almost one third of total production in China. Other major tobacco-producing countries in 1988 included the United States, Brazil, India, and the Soviet Union.

Development of the commercial tobacco industry began in the Americas. The use of tobacco for smoking and chewing was apparently widespread among natives of North, Central, and South America by the 16^th century; the earliest record of tobacco use is a fifth-century bas-relief from Mexico. Nicotiana tabacum L. was the principal tobacco cultivated by the natives of Central and South America. The most widely grown and used tobacco in eastern North America at that time was N. rustica L. This species was also introduced into countries around the world by Portuguese and Spanish merchants and was of major commercial importance for many years. It is now commercially important in only a few countries, with the greatest production in India. The tobacco industry as we know it today began in 1612, when seed of N. tabacum was introduced into Virginia from the Orinoco region of Venezuela by the Englishman John Rolfe. Smoking material made from this flavorful tobacco was more palatable to smokers than harsh, bitter smoking material made from leaves of N. rustica, and it very quickly became the most important export crop of the fledgling colonies. Other early centers of commercial production of N. tabacum include the Caribbean area, South America, and the eastern Mediterranean. Today, the commercial tobacco industry is based almost entirely on the many types of tobacco leaf found in N. tabacum.

Compendium of Tobacco Diseases

Introduction

The Genus Nicotiana and N. Tabacum
Culture and Types of Tobacco
Diseases and Pathogens of Tobacco

Part I. Infectious Diseases

Foliar Diseases Caused by Fungi

Blue Mold
Powdery Mildew
Brown Spot
Anthracnose
Frogeye
Target Spot
Gray Mold and Dead-Blossom Leaf Spot
Ragged Leaf Spot
Phyllosticta Leaf Spot
Corynespora Leaf Spot
Curvularia Leaf Spot
Scab
Metallic Mold
Sooty Mold
Rusts

Root and Stem Diseases Caused by Fungi

Black Shank
Pythium Diseases
Black Root Rot
Stem Rot
Sore Shin and Damping-Off
Fusarium Wilt
Verticillium Wilt
Charcoal Rot
Tobacco Stunt
Olpidium Seedling Blight
Collar Rot

Diseases of Cured and Stored Tobacco

Barn Rots
Storage Molds

Foliar Diseases Caused by Bacteria

Wildfire and Angular Leaf Spot
Hollow Stalk, Black Leg, and Barn Rot
Philippine Bacterial Leaf Spot
Leaf Gall or Fasciation

Root Diseases Caused by Bacteria

Bacterial Wilt

Diseases Caused by Mycoplasmalike Organisms

Aster Yellows, Stolbur, and Big Bud

Diseases Caused by Nematodes

Root-Knot Nematodes
Tobacco Cyst Nematodes
Lesion Nematodes
Stem Nematodes
Ectoparasitic Nematodes

Diseases Caused by Viruses

Tobacco Mosaic Virus
Potato Virus Y
Tomato Spotted Wilt Virus
Cucumber Mosaic Virus
Tobacco Etch Virus
Tobacco Vein Mottling Virus
Alfalfa Mosaic Virus
Tobacco Leaf Curl Virus
Other Viruses

Diseases Caused by Parasitic Higher Plants

Broomrape
Witchweed
Dodder

Part II. Noninfectious and Abiotic Disorders

Nutritional Problems

Deficiencies
Toxicities

Environmental Disorders

Frost and Cold Injury
Drought Spot
Leaf Scald or Sunscald
Lightning Injury
Hail Injury
Drowning

Other Abiotic Disorders

Weather Fleck
Frenching
Chemical Injury
False Broomrape

Genetic Abnormalities

Part III. Approaches for Management of Tobacco Diseases

Integrated Pest Management

Cultural Practices
Host Resistance
Chemical Management
Infestation Level

Genetic Modification