O^O 



CORN 



The extfnsi\e dcA-elopmeiit of the roots of these phuits d^age 240) 

 is to be especially noted in contrast with thnse in the fnllowing illus- 

 trations, especially im pages 242 and 243. It is \-ery uncnnimon to find 



FOUR HILLS REPRESENTING GROUND IN CORN FOR THE THIRD YEAK. 



Number of corn root worms in each hill, numbered from left to right, 65 70, 31 

 and S3 worrns respecti\^el\'. 



corn-root worms in grdund that is in corn for the first year. The one 

 corn-root worm can only be accounted for by the fact that this field 

 was but a short distance from one that had been in corn for 4 

 years, a beetle ha^dng strayed to the nearby field before she had de- 

 posited all her eggs. 



It should be noted that the number of the corn-root worms is in- 

 creasing very rapidly as the number of years increase that the ground 

 has been in corn; also, the plants are getting much smaller and the 

 extent of root system is being very noticeably and seriously reduced. 



