The Royal Horticultural Society Pests and Diseases (RHS)

This guide to the identification, prevention and treatment of a range of plant problems is designed to provide quick and easy access to the solution the gardener needs. A visual gallery of symptoms contains colour photographs, enabling comparison with the affected plant. The comprehensive A-Z section details the cause and control of 500 plant pests, diseases and disorders, offering advice on chemical-free preventive measures and remedies wherever appropriate. Informative features and a reference section complete this handbook which is suitable for both the amateur and the professional.