1929 - Thomas, F. L. What does the future hold in store for the South. J. Econ. Ent. 

 22(5):736-743. 



Average reduction for the period 1921-1925, chargeable to the boll weevil, 

 was 17.3% in cotton. 



1929 - Hough, H. W. Our crop destroying insect pests. Sci. Amer., v. 141:125-127. Aug. 



Among insects taken up is the boll weevil. About 90% of the cotton producing 

 area of the United States is infested with the pest, which destroys more than 200 

 million dollars worth of our cotton annually. 



1930 - Coad, B. R. The entomologist in relation to cotton insect problems of today. 



J. Econ. Ent. 23(4):669. 



A chart is presented giving estimates of boll weevil and other insect damage 

 to cotton crops for the years 1910 through 1928. 



1934 - Hinds, W, E. Presidential address: Some achievements in economic entomology. 

 J. Econ. Ent. 27(1):43. 



A figure of $200,000,000 is presented as an estimated annual loss from 

 boll weevil damage. 



1954 - Anonymous. 34-year record shows insecticides increase cotton yield an average 

 of 25 percent. U. S. D. A. Press release. May 11. 



More than 30 years of insecticide field trials at Tallulah, La., carried on by 

 the Agricultural Research Service, have resulted in an annual average seed 

 cotton yield of 1,826 pounds per acre--371 pounds, or 25.5%, more cotton than 

 from untreated cotton plots, which averaged 1,455 pounds per acre. 



1954 - Shepard, H. H. Cotton insecticides . Agr. Chem. 9(l):40-43, 111, 113, 115. New 



York. 



Contains data on losses due to the boll weevil. 



1955 - Butler, Eugene. Two bugs that steal cotton- -Our fight to stop them. Progressive 



Farmer (Tex. Ed.) 76:30-31. June. 



The first few years after the boll weevil invaded a new area, cotton produc- 

 tion dropped from a third to a half, Louisiana, 42% in 1909; Mississippi, 33% in 

 1913; Florida, 40% in 1919; Alabama, 36% in 1920; Texas, 34% in 1921; Oklahoma, 

 41% in 1921; Georgia, 45% in 1921; Tennessee, 34% in 1921, South Carolina, 40% 

 in 1922; Arkansas, 25% in 1950; and North Carolina, 34% in 1950. 



In 1910, 18 years after the weevil entered the lower valley, it had cut the 

 yield for the Cotton Belt 6 percent, representing a loss of 740,000 bales. 



In 1910, the USDA reported loss of 400,000 bales in 1908, value $20,000,000. 

 In 1909 damage was estimated at $15,000,000. In 1921 yield reductions for the 

 Cotton Belt as a whole were 31.2%. The 5-year period, 1918 to 1923, was the 

 most destructive in cotton history, damage averaging 21.3% per year. 



Losses estimated by the National Cotton Council starting with 1927 ranged 

 from $63,000,000 in 1931 to $762,757,000 in 1950. For 50 years the weevil's 

 average annual total has been $200,000,000. So the pest has fairly earned the title 

 of 10-Billion-Dollar Bug. 



1958 - Coker, R. R. The impact of the boll weevil on cotton production costs. Cotton 



Gin & Oil Mill Press 59(26):22- 24. 



Contains information on losses in yields of cotton attributable to the weevil. 

 From 1909 to 1954 it is estimated that 64,877,000 bales of cotton and 27,917,000 

 tons of cotton seed valued at $7,680,000,000 were destroyed by the weevil. 



1959 - Parencia, C. R., Jr. Comparative yields of cotton in treated and untreated plots 



in insect-control experiments in central Texas, 1939-1958. J. Econ. Ent. 

 52(4):757-8. 



In insect control experiments conducted in central Texas over the 20-year 

 period, 1939-1958, the average increase in yield in treated over untreated plots 



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