INSECTS AND DISEASES 



ear. It is, therefore, very difficult to con- 

 trol the pest. The insect also attacks other 

 plants besides corn, but it prefers corn to 

 anything else. Lately Missouri has been 

 able to demonstrate that applications of 

 arsenate of lead in a dry form applied to the 

 ears of corn have proved quite effective in 

 controlling this insect. More detailed matter 

 upon this question undoubtedly will be forth- 

 coming in a short time from that station. 



Borer. There is an insect quite common 

 in the South, known as the larger cornstalk 

 borer, which affects sweet corn at times, 

 starting in at the base of the roots and 

 boring into the interior of the stalk. Some- 

 times it affects the leaf by punching holes 

 through the same. The principal treatment 

 is rotation of crops, especially so if rubbish 

 from the field is done way with and crop 

 rotation is practiced. Spraying does not 

 seem to be practical in controlling insects 

 and diseases of sweet corn. It seems best 

 to practice the more common [method of 

 rotation in every case, with improved 

 sanitary conditions of the field. 



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