VII. VALUE OF WILDLIFE 18 



VIII. RECOMMENDATIONS FOR SAFEGUARDING WILDLIFE VALUES DURING PEST 



CONTROL 18 



TABLE 1. Pest Control Expenditures and Losses from Pests 20 



2. The Numbers of Basic Compounds in Five Major Groups of 



Pesticides 20 



3. U. S. Production of Some Major Pesticidal Chemicals by 



Calendar Years, 1952-1958 21 



4. Aerial Application of Pesticides and Defoliants in the United 



States 22 



5. Trend to Newer Agricultural Pesticides; Comparison of Some 



Canadian Sales Values for 1947 and 1957-58 23 



6. Effects of Single Applications of DDT in Oil Solution on 



Vertebrates and Crustaceans 23 



7. Toxicity of Insecticides to Captive Bobwhite Quail and Ring- 



Necked Pheasants in Tests at Patuxent Wildlife Research 



Center 24 



8. Effects of Insecticides Upon Reproduction of Quail 25 



9. Amounts of Insecticides Causing 40^ or More Decrease in 



Reproduction of Quai 1 25 



10. Tabulations of Relative Toxicities of Insecticides to Bobwhite 



Quail and Ring-Necked Pheasants Based on Toxicity of DDT.... 26-27 



11. Insecticide Content of Tissues: Expressed as Parts Per 



Million in Dried Tissue 27 



12. Heptachlor Epoxide Content of Species of Birds from Areas 



Treated With 2 Pounds of Heptachlor Per Acre 28 



13. Heptachlor Epoxide Content of Classes of Vertebrates, 



Chaetopods, and Crustaceans from Areas Treated With 2 Pounds 



of Heptachlor Per Acre 29 



14. Status of the Bobwhite Quail on the Wilcox County, Alabama, 



Study Area 30 



15. aimmary of Counts of Bobwhite Quail on Treated and Untreated 



Land in Decatur County, Georgia, and Untreated Land Near 



Atmore, Alabama 31 



IX. REFERENCES 32-36 



