Applied Entomology : An Introudctory Textbook of Insects in Their Relations to Man

Contents Preface. 1. Relation of insects to other animals. 2. External structure of insects. 3. Internal structure and physiology of insects. 4. Development of insects. 5. Economic importance of insects natural control. 6. Applied control. 7. Insecticides in general inorganic insecticides. 8. Organic insecticides. 9. Classification of insects. 10. Subclass Apterygota. 11. Subclass Pterygota order Ephemerida. 12. Order Odonata. 13. Order Orthoptera. 14. Order Dermaptera. 15. Order Plecoptera. 16. Order Isoptera. 17. Order Embioptera. 18. Order Corrodentia. 19. Order Zoraptera. 20. Order Mallophaga. 21. Order Thysanoptera. 22. Order Anoplura. 23. Order Hemiptera. 24. Order Homoptera. 25. Order Coleoptera. 26. Order Strepsiptera. 27. Order Neuroptera. 28. Order Trichoptera. 29. Order Lepidoptera. 30. Order Mecoptera. 31. Order Diptera. 32. Order Siphonaptera. 33. Order Hymenoptera. 34. Animals other than insects. Index. The author believes that in agricultural colleges at least two distinct groups of students need a knowledge in entomology and rather early in their course. One of these groups is composed of students who will never specialize in the subject but need it as part of an agricultural education and particularly as a tool which they can use wherever insects are related to their special lines of work. They are not particularly interested in such details as the number of antennal segments in insects the number of branches of the radial vein or how important a pest on pigweed the insect is they do not expect to identify insects beyond the order or family at most relying on specialists available at the state experiment stations for such information. But they do desire a general knowledge of and if possible the ability to recognize particularly important insect pests they are liable to meet in the course of their work. The other group consists of those who expect to specialize in the subject becoming professional entomologists. Their needs will of course be different from those of the other group but an introductory survey such as will meet the requirements of the rest will give the members of this group an excellent foundation for further and more detailed work. The present book is offered as a classroom text for an introductory course in the subject which shall give a general idea of insects their structure life histories and habits with methods for the control of insect pests in general. 384 pp.