Originally published in 1920, this book was predominantly aimed at fruit growers and was one of the most comprehensive reference guides to pests and fungus diseases at this time. Part one of the book focuses on common insect pests such as the caterpillar, the winter moth and the beetle, discussing their features and environment, whilst part two of the book examines the myriad fungus diseases of fruit and hops and details the intrinsic traits of each disease. Part three goes on to discuss the diverse methods of spraying and deals with prevention, remedies and treatment. Additionally, the book contains multiple illustrations and historic photographs. This book is an important record of the most prevalent pests and fungus diseases in the early twentieth-century landscape and will be of particular value to anyone interested in the history of botany and agricultural science.