1. The references cited in this chapter, together with those for Chapter 10, are listed in References – Part I, pages 379–400.
2. Resistance of F1 wheat plants to green bugs and Hessian fly;ABDEL-MALIK;Journal of Economic Entomology,1966
3. Aphid resistance in potatoes;ADAMS;American Potato Journal,1946
4. Tobacco;AKEHURST,1968
5. Sweetclover weevil feeding deterrent. B. Isolation and identification;AKESON;Science,1969