46 



NATURAL CONTROL OF THE COTTON BOLL WEEVIL. 



5= Z. 



1 



a 



Plants large. Fertilized. \'cry dry and 



hot. 

 Large part of leaves fallen from rust. 



Many Solenopsis seen. Much rain for 



past five weeks. 

 Plants shade only portion of ground. 



Fair number Solenopsis. 





Fair number Solenopsis. 

 Cotton grown in clearings in i)inc forest. 

 Few squares present. Nearly defoliated 

 by leaf worm. Plants fair size. 



Condition of (!ultiva- 

 tion. 



o 



O 











c 







_5 

 o 



C 



o 



> 







> 







> 



IT 



Direction of 

 rows. 



E.-W 



E.-W 













cc 



K 





o 

 ® 



: 



c 



1 1 



> 



2 



I 



cc 



c 



> 



1 



u 



III 



190(1. 

 Au^. 10 



Aug. 9 



Aug. 30 



Aug. 7 

 Aug. 23 

 Aug. 23 

 Aug. 22 

 Sept. 30 





Per cent. 

 51.4 



50.5 



50.5 



46.3 

 40.5 

 40.2 

 40.0 

 39.4 



1 



X 



r 

 C 

 c 



y 



c 

 r- 



> 



c 

 r- 



X 

 > 



c 



u 



E- 



X 

 c 



c 

 C 



> 



c 

 U 



c 



= 







) 



Solenopsis quite numerous. Conslder- 

 al)le. root rot, causing dead an'as. 



I'innts average 4i feet high. 



Solenopsis apparently not abundant. 

 Heavy foliage; ground partially shnded. 



No record. 



Cotton rank; ground shaded. 



Pi.ints about 3i feet high. 



Plants al)out 3 feet high. 



No record. 

 Do. 

 Do. 



1 



1 







1 















> 





> 



P. 





> 

















1 



=9 









2 









£ 

 p 



> 



1 



1 



> 



c 



02 





c 



1 



5 



> 

 p 



(5 



3 



X) 



c 



1 







• 



Oct. 1 



Sept. 24 

 Aug. 10 



III 











X 







1 



- 1 



§ 



X 



a. 

 c 



X 



1 



X 







X 





c. 



c 

 > 



O 







I 



