Entomology is an interdisciplinary field that draws on biology, ecology, physiology, and taxonomy. The "Practical Manual on Fundamentals of Entomology" is a comprehensive and practical resource designed to meet the needs of students, researchers, and enthusiasts who wish to explore the fascinating world of insects. Whether you are a beginner or have a background in the biological sciences, this manual aims to deepen your understanding and appreciation of the complex lives of insects. The manual's objectives include presenting fundamental insect collecting and preservation methods, describing alterations to insect appendages, identifying insect features, discussing external insect characteristics, and covering spraying techniques and pesticide formulations.

Chapter 1. To Study the Methods of Collection and Preservation of Insects Including Immature Stages
Chapter 2. To Study the External Features of Grasshopper
Chapter 3. To Study the Types of Insect Antennae
Chapter 4. To Study the Different Types of Mouthparts and Their Modifications
Chapter 5. To Study the Different Legs and Their Modifications
Chapter 6. To Study the Wing Venation, Types of Wings and Wing Coupling Apparatus
Chapter 7. To Study the Types of Insect Larvae and Pupae
Chapter 8. To Study the Dissection of Digestive System in Insects (Grasshopper)
Chapter 9. To Study the Male and Female Reproductive Systems in Insects
Chapter 10. To Study the Characters of Orders - Orthoptera, Dictyoptera, Odonata, Isoptera, Thysanoptera, Hemiptera, Lepidoptera,Coleoptera, Hymenoptera, Diptera and their Families of Agricultural Importance
Chapter 11. To Study the Insecticides and Their Formulations
Chapter 12. To Study the Pesticide Appliances and Their Maintenance 
Chapter 13. To Study About the Sampling Techniques for Estimation of Insect Population and Damage