MAGGOTS ATTACKING THE BOOTS 



121 



Fig. 90. — Adult of the Onion Maggot. 

 Enlarged and natural size. Original. 



bulb. There are two to four gener- 

 ations each year. 



Practical means of direct control 

 are wanting. Onions should be 

 planted each season in fields as far 

 removed from the previous season's 

 planting as may be. In small plots 

 carbolic acid emulsion may be used. 

 Liberal amounts of tobacco dust 

 along the rows will act as a fair 

 deterrent. 



The Barred-winged Onion Maggot 

 {Choetopsis cenea Wicd.) is a similar 



species found on onions, and sometimes on the roots of corn and 

 sugar cane. The Ufe history and the remedies are similar. 



The Seed-corn Maggot {Pegomya fusdceps Zett.) 



This insect sometimes works on sprouting sweet corn, but is rather 

 a pest of beans and peas. It is a white, soft-bodied maggot, without 

 legs, and works beneath the surface of the ground, eating into and 

 destroying newly planted peas or beans, especially just as the tender 



Fig. 91.— Work of the Seed-corn 

 Maggot on the roots of beans. 

 Original. 



