The definitive work in its field--gives more information on the pests of agricultural crops, humans, domestic animals, and the home than any other book. Comprises a brief and concise introduction to entomology, covering insect anatomy, morphology, development, physiology, and classification. Unique in its grouping of pests with their natural enemies. Gives special emphasis to control by biological means utilizing nature to the fullest extent as the wisest and most economical approach to good pest control without polluting the environment with toxic chemicals. New chapters cover the pests of sunflowers and tree nuts. Well-illustrated.