Book excerpt: Diseases of Herbaceous Perennials is a beautifully illustrated, practical, scientifically reviewed reference book that will help you identify and solve plant disease problems specific to these valuable ornamental plants. As the popularity of herbaceous perennials in the landscape continues to rise, there is a demand for more information on how to produce and grow these striking plants successfully.The common diseases of more than 150 popular perennials are included in this new book, arranged alphabetically by plant and accompanied by hundreds of fine color photographs to assist in accurate disease diagnosis. Short descriptions of the cultural conditions that will help these plants remain healthy and thrive are given for each host plant. Tips are provided to assist growers and gardeners in managing challenging diseases. This guide includes extensive color illustrations of diseases commonly found on herbaceous perennials in landscapes and nursery production. Accurate color images assist the reader in correctly distinguishing between disease and insect problems and leads to correct disease diagnosis when faced with a bewildering array of symptoms.