258 Bulletin 133. 



ditch or furrows around the whole field or the worst infested sec- 

 tion of the field and thus confine the worms as Mr. Huntington 

 did. Then turn in your poultry or poison the worms. Our little 

 parasitic friends often do noble work in checking the future 

 development of the insect, but they do not give the immediate 

 relief which the farmer usually needs. 



When the worms can be confined to a small area by a ditch, it 

 may be practicable to spray this area with a strong Paris green 

 mixture to poison the worms. Sometimes much can be done to 

 lessen their numbers by drenching with Paris green a narrow 

 strip of the crop on the side toward which the army of the worms 

 are marching, or even a strip just ahead of the worms in an 

 infested field. A bran mash, to which enough Paris green has 

 been added to give it a distinct greenish tinge, scattered about 

 where the worms are at work will attract and poison many of 

 them. 



In fighting army-worms, it is necessary to act quickly, for a 

 day's delay often means the destruction of an acre or more of a 

 promising rye, corn, oat, or hay crop. Stop the onward progress 

 of the worms, or confine them in a limited area if practicable, 

 with ditches or deep furrows in which holes have been dug every 

 10 or 15 feet. Then kill as many of the worms as possible, either 

 in the holes in the furrows, or by the use of poisons, or invite the 

 poultry to a feast. 



Mark Vernon Slingerland. 



