26 



BrLLETIN 1103, U. S, DEPAEI'MEISTT OF AGKICULTUEE. 



The rainfall in this region was also quite uniform in the three 

 States, rainy periods occurring in March and April and decided 



I 



I 



/>7/^&iy6^/^/ 



/<^A^^/9*5 



/^/F/</9A/^/9^ 



/320 



/S2./ 



SFiG. 12. — Monthly departures from normal temperature 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.) 



droughts in January, February, May, and July. 

 Table 7.) 



(See Fig. 13 and 



