INSECTS INJURIOUS TO THE GRAINS AND GRASSES. 87 



hold them in check, being destroyed or carried to other 

 places by the rush of water. 



The parent moth is very dissimilar from that of the 

 Army- worm. It is of a " general yellowish, ash-gray color, 

 with the second pair of wings almost transparent, but with 

 a purplish reflection. In extent of wings it measures about 

 one and one-quarter inches, and when these are closed the 

 length of the insect is about three-quarters of an inch. 

 The front wings are mottled or marbled, especially near 

 the central area, and usually there is visible a fine white 

 line a short distance from the edge and parallel to it. 

 The hind wings have a fringe of darker hair as well as 

 veins that contrast somewhat with the lighter portion/'* 



Remedies. — As before stated, this species is even more 

 difficult to combat than the true Army-worm on account 

 of the fact that its attacks are scattered over a wider area, 

 the individuals being of more solitary habits. The same 

 methods of combating it will be found profitable, however, 

 and especially that of deep fall plowing and harrowing, 

 which in this case will break up the pupal cells and prevent 

 the development of the moths. '' In the case of perennial 

 crops fall plowing is not practicable. For alfalfa Mr. 

 Hunter has recommended that the field should be 

 thoroughly 'disked,' or cultivated with a disk-harrow, 

 giving practically the same results as plowing other fields. 

 For lawns a thorough going over with a long-toothed steel 

 rake is the treatment recommended.'' 



"In fields of young grain and on lawns many of the 

 worms may be killed by rolling with a heavy roller, prefer- 

 ably when the insects are at work early in the morning or 



* Press Bulletin Xo. 2, Nebr. Ag. Exp. Sta., "The Fall Array 

 Worm," W. D. Huuter. 



