246 PESTS OF ORCHARD AND SMALL FRUITS 
istic punctures and do not bend sharply at one place. The drooping 
is due to the presence of a maggot which burrows in the pith of the 
cane and more or less girdles it fromthe inside. 
The adult is a two-winged fly, and emerges in the spring. The insect 
remains as a pupa within the cane over winter. Cut and destroy 
infested canes as soon as the wilting of the tips is observed. 
The Currant Stem-girdler (Janus integer Nort.) 
Currant shoots wilt and bend over sharply, and usually the up 
soon breaks off and falls to the ground, leaving a square-cut stub. 
Within the remaining stalk, a few inches below the cut, will be found 
a light yellow larva half an inch long, wider toward the head, and pro- 
vided with a forked spine at the hind end. 
The parent insect is a sawfly. The girdling of the stem is done by 
the adult just after depositing its egg in the 
shoot and at a point just above the egg. The 
larva hibernates in the main shoot. It seldom 
burrows more than six inches below the stub. 
Infested shoots should be cut off eight or ten 
inches below the stub. 
The Grape-cane Gall-maker 
: Lec.) 
A tiny snout beetle, one eighth of 
an inch 
long, sometimes injures grape canes in the 
Fie. 325.— Work of 
the Grape-cane Gall- 
Original. 
maker. 
Fic. 
326. — Adult of 
the 
Enlarged and natural size. 
Grape-cane 
Gall-maker. 
Original. 
