SUMMARY OF INSECT CONDITIONS DURING 1921. 



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Fig. 5. — 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 green bug 

 in 1921. (See also Table 3.) 



Table 3. — Monthly departures from normal temperature and rainfall for the 

 fall of 1920, the winter of 1920-21, and the grouting season of 1921 in the 

 region infested by the green bug in 1921. 



DEPARTURES (IN DEGREES FAHRENHEIT) FROM NORMAL TEMPERATURE. 





1920. 



1921. 





| Sept. 



Oct. 



Nov. 



Dec. 



Jan. 



Feb. 



Mar. 



Apr. 



May. 



June. 



July. 



Aug. 



Sept. 



Kansas 



Oklahoma 



Texas 



..' + 0.6 



.. + .4 

 .. +1.8 



+3.8 

 +2.1 



-4.4 

 -4.2 



-2.9 



+3.2 

 +2.0 

 + -5 



+6.9 

 +5.7 



+5.7 



+9.0 

 +6.1 

 +3.6 



+ 7.3 



+ 4.7 

 +5.6 



+0.9 

 - .7 

 -1.8 



+2.4 

 +2.5 

 + .6 



+ 1.6 



- .6 



- .8 



+ 1.1 

 + -4 

 + -0 



+1-4 

 +2.1 

 +1-7 



+4.6 

 + 5.0 



+ 4.D 



ponal mean. . 



..|+ .« -2.1 -3.8 



+ 1.9 



+6.1 



+6.2 



+5.8 



- .5 



+ 1.8 



+ .0 



+ -5 



+1-7 



+4.5 



111610—22- 



