HOW TO DETECT OUTBREAKS OF INSECTS AND SAVE GRAIN. 



11 



.) Poison them by spmying crops not intended for forage with 

 1 pound of Paris green to 50 gallons of water, or with 2 pounds of 

 powdered arsenate of lead to 50 gallons of water. In case the Paris 

 green is used on tender plants, like corn, add 2 pounds of freshly 

 slaked lime to 50 gallons of the mixture. This is to prevent burning 

 the tender plants. Where spraying is not practicable, the use of the 

 poisoned-bran bait already mentioned is strongly recommended. 1 



(3) In case the worms are crawling in a body, surround them with 

 a furrow or ditch and crush them with a log drag as they fall into it. 



F 1G . o. Ditch prepared to entrap marching army worms. A log, dragged back and 

 forth through the ditch, crushes the worms that have fallen into it. 



CUTWORMS. 



Numerous complaints of the ravages of cutworms (see fig. 7), 

 especially in corn, are received by the department each season. 

 Prompt action is necessary for controlling cutworms after their 

 presence becomes noticeable in the spring, which usually is about 

 the time the corn begins to sprout. Since the crop may be destroyed 

 by cutworms between the time an inquiry is sent to the department 

 upon the appearance of the worms and the time a reply can be 

 received, the importance of recognizing these insects and Icnowing 

 how to control them is evident. 



1 Further information regarding this pest is contained in Farmers' Bulletin 731, which 

 may be secured free of charge upon application to the Secretary of Agriculture, Wash- 

 ington, D. C. 



