SAWFLY LARV.^ EATING THE LEAVES 



287 



The Raspberry Sawfly {Monophadnoides rubi Harr.) 



Greenish, spiny worms eat the foHage of raspberry and blackberry, 

 stripping the bushes and leaving only the main leaf veins. The full- 

 grown larva is three fourths of an inch long and covered with short 



Fig. 421. — Larva of tiie Raspberry 

 Sawfly. Original. 



Fig. 422. — The Raspberry Sawfly. 

 Enlarged and natural size. Orig- 

 inal. 



spines, which are dark on its back but light on its sides. When ma- 

 ture, the worms enter the ground, and remain there until the follow- 

 ing spring, when the transformation to the adult sawfly takes place. 



Paris green or ar- 

 senate of lead may be 

 used to poison the 

 worms until the fruit 

 is set. After that use 

 hellebore. 



The Grape Sawfly 



{Selandria vitis Say) 



Greenish or yellowish 

 slugs, their bodies 



dotted with black, feed 



Fig. 423. — The Grape Sawfly. Enlarged and 

 natural size. Original. 



in groups on the leaves 



of grapes, usually on 



the under side of the leaf. The adult is a sawfly. There are two 



broods annually. 



