CRANBERRY SAWFLY 

 Fig. 66. Cocoon and female fly. Much enlarged. 

 Fig. 67. Cranberry leaf with egg-pockets. Much enlarged. 

 Fig. 6S. Worm. Much enlarged. 



brown, and a little over a twenty-fifth of an inch long. They hatch about a 

 week after they are laid. 



THE LARVA 



At first the worms are light yellowish green with the head dark brown. 

 They giow darker with age. When mature (fig. 68) they are slightly over 

 threceighths of an inch long, smooth, green, and without noticeable markings 

 except a narrow internal stripe of whitish pigment running the length of the 

 back on each side of the heart and conspicuous through the skin. Their heads 

 are pale greenish brown with a black dot on each side. They have six pairs 

 of prolegs. 



THE ADULT 



The flies (fig. 66) are a fifth of an inch long and half an inch across their 

 expanded wings and mostly black, but the females have a broad band across 

 the middle of the upper side of the abdomen and all its under side but the tip 

 brownish yellow. 



Treatment 



Flooding for 10 hours about June 8 is effective; so also is spraying with 6 pounds 

 of dry lead arsenate to 100 gallons of water early in June. 



[64] 



