Chapter 6 Plant and animal resistance to insects. Pages 64-99. In: Insect-Pest Management and Control. Principles of Plant and Animal Pest Control. Washington DC, National Academy of Sciences (United States). Volume 3. Publication 1695, Third Printing, 508 pages.

Keywords: History and examples, components of resistance, non-preference and preference, insects may starve rather than feed on resistant plants, in some animals pest feeding is not always related to skin thickness, antibiosis, abnormal effects when insects feed on resistant plants, effects of resistant plant variety on insect populations, possible physiological and biochemical bases of antibiosis in plants, physical and antibiosis differences in plants are rarely important, effect of antibiosis on numbers of pests of animals, morphological differences as basis of resistance in animals, tolerance, resistance factors, most desirable type of resistance, soil moisture and nutrition, temperature, biological factors influence resistance, biotypes, plant and insect diseases, resistance program, research personnel, insect populations, animal material, plant material, search for genetic resistance, planning experiments, testing procedures for segregating generations, resistance studies, best material for study, value of knowledge of bases of resistance, kinds of studies, limitations, time required, biotypes as limitations, incompatibility of resistance characters with other needed characters, replacement of varieties, advantages and potentialities, effect of resistance is cumulative and persistent, lack of damages to man and

environment, low cost, advantageous use and potentialities, value of low levels of insect resistance in plants, situations where insect resistant plant varieties are most useful,