78 NATURAL CONTROL OF THE COTTON BOLL WEEVIL. 



Page. 



Boll weevil, mortality in all classes of forms 30-31 



bolls versus squares • 'A?,-.;',. 74 



each class of forms for each serf ion 60 62 



fallen bolls 28-29,30,31 33,51,54 60,61 l 



forms 73-74 



from ants 31, 33, 51 



heat and drying 31, 32, 51 



parasites 31, 33, 51 



squares 29, 



30, 31-32, 33, 44, 47, 51, 64 -59, 60, 61-62, 75 



hanging dried bolls 27, 30, 31-33, 51, 54-60, 61-62, 75 



squares 27-28, 



30, 31-32, 33, 44, 51, 54-59, GO. 61, 75 



forms 73-74 



from ants 31, 33, 51 



heat and drying 31, 32, 51 



parasites 31, 33, 51 



Louisiana, western 54-55, 61, 62-63, 75 



squares versus bolls 33-35. 74 



Texas, central 57-58, 61, 62-63, 75 



eastern 55, 61, 62-63, 75 



northeastern 58-59, 62-63, 75 



northern 61 



southern 56-57, 61, 62-63, 75 



southwestern 59, 61, 62-63, 75 



of adults in cotton forms 27-29, 



37, 38, 40-41, 43, 54-59, 60, 62, 75. 



larva? in cotton forms 27-29, 



30, 37, 38, 40-41, 43, 54-59, 60, 62. 75 



pupa 1 in cotton forms 27-29, 



30, 37, 38, 40-41, 43, 54-59, 60. 62. 75 



natural control in various localities 35-38, 53-59, 61-63 



parasites more abundant in hanging than in fallen forms 30 



proportion of stages which may emerge from fallen bolls 76 



squares 76 



hanging dried bolls.. 76 

 squares 76 



Climatic conditions in control of boll weevil 11-19, 37, 38-43. 74 



Control, natural, of boll weevil, climatic factors involved 11-19, 37, 38-43. 74 



conclusions and summary 73-76 



conditions requiring consideration 11-12 



definition 6 



influence of dry season on succeeding season 14-15. 73 

 period [duration] of infestation. 51-53. 75 

 short drought in same season. . 12-14, 73 



winter climatic conditions 15-19, 73 



in various classes of forms 26-31, 60-62. 75 



localities 35-38, 53 -59, 60-63, 75 



localities where greatest.'. 74 



relationship of factors 1 19-23 



summary and conclusions 73-76 



Cotton forms (sec also Bolls and Squares ). 



fallen, mortality of boll weevil 30, 31-33, 73-74 



