With concern about pesticides and pollution rising, the pendulum has swung back in favour of "natural" organic gardening methods. An important factor in successful organic gardening is the balance between the "friends" and "foes" - beneficial and destructive insects, animals and birds. This very practical and scientific guide explains the complex relationships among garden wildlife and how the organic gardener can use this predatory hierarchy to achieve a dynamic, self-regulating, and fruitful environment.