SUMMARY OF INSECT CONDITIONS DURING 1921. 



27 











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L^ 













A 



(^■i 



^ 



^ 





A 



wk 



^tote 



X 



.'^ 



--^ 





A 



mHH 



k^ 



^^ 



A 



H 







y^ 





N 



/^ 



\ 



/ 























\ 



/ 





























/&20 



\ \ 





-2 



/r^A<55^i5' 



/920 



































































































^KSB^ 



■^ 











7^ 



^^ 



^^ 



-^ 











V^ 



^ 





\ 

















> 



































5i 



/B2/ 





^ 



^ 





mffmL\ 

 -z 



-3 



I 











/?/?/<?9/V^^S 



























































■ 











^ 



i 



V 











^ 



L 







A 



k 







A 



^ 



JKk 



Ik 







jm 



Ik 



«/i 



H 



A 



li^ 





\ 





\ 



y 







\ 



/ 



/ 











\ 



y 







\ 



/ 























^ 



/ 









/a2o 



/&2/ 



+ t3 



+ <2 



NORMfilS 



I 



J'lO. 13. — Monthly departures from normal rainfall for the fall of 1920, the winter of 

 1920-21, and the growing season of 1921 In the region infested by the sorghum web- 

 worm during 1921. (See also Table 7.) 



