94 NEW HAMPSHIRE COLLEGE 



somewhat like the common house fly in general appearance, 

 which appears in the cabbage field soon after the plants are set 

 out, and deposits its eggs about the stems at the soil surface. 

 The little, whitish maggots soon hatch, and work their way 

 downward to the roots, which they attack, feeding upon the 

 outer surface and thus making grooves, or boring into the 

 interior and hollowing out cavities. The effect of their work is 

 to remove the fibrous roots from the plant, so that when pulled 

 up it resembles Fig. 4. In two or three weeks the maggots be- 

 come full-fed (a), and they change to the pupa state within 



Fig. 4. Young Cabbage Plant denuded of roots by maggots. (Original.) 



hard brown puparia (6), to emerge some da} 7 s afterward as 

 adult flies. There are probably three or four broods each 

 season, and the insect apparently hibernates in each of its three 

 later stages. 



Considerable damage was reported early in the season from 

 the work of various species of cut worms. The same weather 

 conditions that favored the development of the army worm, 

 doubtless led to an unusual abundance of these closely related 

 pests. 



Clarence M. Weed, 



Entomologist. 



