14 



NEW YORK STATE MUSEUM 



parent insect is a delicate, yellowish moth with rather faint, dark 



markings. 



Treatment: spraying 

 with poison, or handpick- 

 ing. 



21 Currant stem-borers 

 (Sesia tipuliformis, 

 Janus integer, Tenth- 

 redo rufopectus). 

 The caterpillars boring in 

 the woody stems are se- 

 sians. The maggots work- 

 ing in the tender tips may 

 be either those of Janus 

 or of T e n t h r e d . The 

 parent of the stem-borer 

 is a delicate, clear winged 

 moth much resembling a 



Fig. 14 Currant span worms, larvae and pupa 

 (after Saunders) 



hornet. The Janus is a black, four winged, 

 slender fly, the female having the abdomen 

 banded with red, the male with his abdomen 

 all reddish. The Tenthredo is a heavier, 

 black, four winged fly. 



Treatment: burn stems infested with se- 

 sians and the wilting tips infested by the 

 others. 



22 Raspberry gouty gall beetle (Agrilus 

 ruficollis). The irregular swellings on 

 canes are produced by larvae of this pest. 

 The parent insect is a small black beetle 

 with a bronze colored collar. The grub is a 

 slender, flat headed borer. 



Treatment: cut and burn infested canes 

 during winter or early spring. 



23 Light-loving grape vine beetle (A n o m - 

 ala lucicola). Brownish or black bee- 

 tles about f inch long, resembling a small 



Fig. 15 Raspberry gouty 

 gall (after Riley) 



