SUMMARY OF INSECT CONDITIONS DURING 1021. 



35 



kyWKHM. 



-2.C 

 -AS 

 -/.€ 



-.'.2 

 -/.O 

 -OS 



-C.6 



-0.2 

 A/OfiMtfL 

 +0.2 

 + 0.4- 

 +0.6 

 +0.8 

 + /.0 

 +/.2 

 + /.4 



/320 



Fig. 17. — Monthly departures from normal temperature (solid black) and rainfall (white) 

 from September, 1920, to September, 1921, inclusive, in the region infested by the 

 Mexican bean beetle. (See also Table 8.) 



outbreaks have been confined for the most part to the coastal region. 

 In Louisiana and Texas, however, the area infested is much more 

 extensive, covering the greater part of these States. (See Fig. 18.) 

 In Florida eradication work is being attempted at two points, one 

 in Baker County and the other at Arcadia in De Soto Countv. The 



Fig. 18.— Geographical distribution of the sweet potato weevil in the United States in 

 1921, shown by black areas. 



