1917 - Mackay, A. H. Ent. Soc. Nova Scotia Proc. for 1916. (2):7-9. Jan. Iruro. 



"The cotton boll weevil is responsible for injury amounting to 30 million 

 dollars." 



1921 - Ballou, H. A. Cotton crops and cotton pests. Agr. Res. 20(5 1 1):378-379. 

 Barbados . 



It is said that the shortage in the American cotton crop in 1921 amounts to 

 7,000,000 bales, of which 25% is directly attributable to the boll weevil. 



"The severity of the attacks of A. grandis is greatly influenced by the 

 weather. In Mexico, cotton can be profitably grown in certain dry areas, but in 

 the more humid districts that encourage the development of the weevil, cotton 

 growing has to be abandoned. In the United States, a very severe winter followed 

 by a hot dry summer would result in only slight infestation and a better crop, 

 while the reverse conditions are likely to result in severe infestation." 



1924 - Hunter, W. D. Methods of estimating boll weevil losses. J. Econ. Ent. 

 17(2):195-197. 



Probably more attempts have been made to estimate accurately the losses 

 due to boll weevil than have been made in the case of any other insect. Such 

 estimates have been made by entomologists, crop reporters, and commercial 

 organizations. By far the most accurate estimates have been found to be those 

 made by entomologists. A very accurate estimate can be made by comparing 

 production of plots treated with calcium arsenate with untreated plots. The dif- 

 ference in the production is a precise measure of the amount of damage caused 

 by the weevil. The usefulness of this method could be greatly increased by test 

 plots provided by State entomologists in different parts of their States. Estimates 

 made by crop reporters have been found to show a strong trend toward exaggera- 

 tion. Those made by commercial organizations are frequently colored by market 

 conditions . 



1926 - Schaub, I. O. North Carolina boll weevil program for 1926. N.C. Ext. Serv. 

 Folder 17. 



Contains charts showing damage by boll weevil to the cotton crop in several 

 southern States for several years following the year when the boll weevil had 

 covered each State. 



1928 - Anonymous. Insect pests in Mexico--May-September 1928. Bol. Mens. Defensa 

 Agr. Sec. Agr. Fom. 2(6-7, 8-9):323-36l, 488-583. S. Jacinto, D. F. Mex. 



The insects mentioned in this report include Schistocerca paranensis F., 

 which increased in some districts, Anthonomus grandis Boh., and other pests 

 of cotton which caused losses in the Lagunera cotton districts that are estimated 

 to amount to over 1,000,000 pounds in 1928. 



1928 - Leiby, R. W. Cotton boll weevil damage during 1927. J. Econ. Ent. 21 (1): 151. 



The year 1927 was one of marked damage to cotton by the boll weevil. It was 

 therefore thought advisable to compile the estimates of damage in the different 

 States so that the apparent monetary value of the cotton destroyed would be 

 recorded. 



The damage resulted because of a successful winter survival of weevils that 

 was above the average, and a fairly favorable season for development. The 

 damage throughout the cotton States was unusually heavy in spite of a generally 

 favorable cotton growing season. 



In Texas the damage was 3% or 132,371 bales; in Louisiana, 20% or 136,250 

 bales; in Mississippi, 15% or 216,176 bales; in Florida, 40% or 15,075 bales; in 

 Arkansas, 17% or 200,723 bales; in Georgia, 40% or 733,333 bales; in South 

 Carolina, 30% damage or 315,000 bales; and in North Carolina, 27% or 317,000 

 bales. The States of Alabama, Oklahoma, and Tennessee, which are rather heavy 

 cotton producers, are not included but losses were rather heavy in Alabama, the 

 largest producing State of those not listed here. Estimates of damage have been 

 compiled for individual States in the cotton growing area. The reduction in these 

 States as a whole is estimated at over two million bales, of a value of over 

 $200,000,000. 



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