This guide addresses the fundamental challenge of identifying and managing the various biological and environmental threats that compromise the health of garden plants. The authors, Stefan Buczacki and Keith Harris, leverage their expertise in plant pathology and horticulture to provide a structured diagnostic framework. By organizing symptoms alphabetically by plant type, the text allows gardeners to systematically isolate the cause of plant distress and implement appropriate remedial actions.

This manual is regarded as a standard, utilitarian resource for both amateur and professional gardeners seeking reliable diagnostic information. Its clear, symptom-based organization makes it a functional tool for quick field identification and effective garden maintenance.