302 



NEW YORK STATE MUSEUM 



spring. If this is thoroughly done for a few years it should result in 

 reducing the number of this pest materially. 



Bibliography 

 1902 Felt, E. P. State Ent. 17th Rep't, 1901. N. Y. State Mus. Bui. 53, p. 741-44 



Willow shoot sawfly 



Jaiiits integer Nort. 



Sudden wilting of terminal shouts may be caused by this insect girdling the twigs 

 after depositing her eggs. 



This species has been known for some years in New York State as an 

 enemy of currants, on account of its girdling habit, causing the tender 



terminal shoots to wilt. This 

 If.jj ^ sawlly has been recorded as 

 jlj?! I a intlicting considerable damage 

 to both willow and poplar in 

 Washington D. C, and in Mary- 

 nd. The attack begins near 

 the tips of the young shoots, 

 causing them to hang down, 

 ■^ turn brown and dry during the 

 day. In one instance an entire 

 field was so severely injured 

 that it looked as though it had 

 suffered from severe frost or as 

 if a fire had run over it, and the 

 insect was so abundant that by 

 fall large numbers of the shoots 

 had been killed down close to the ground. Similar injury has been 

 observed by Mr W. F Hubbard to basket willows in portions of the states 

 of Kentucky, Indiana and Ohio, and it would not be surprising were the 

 species to become more or less destructive in this way in New York State, 

 though up to the present no report of such damage has been received. 



Fig. 61 Willow shoot sawfly: ,i-egg; i-larva, dorsal view, c-sam 

 side view; (/, ?=two views of burrow; ./"=twig showing damagi 

 f=adult— all enlarged except /— /,. antenna, still more enlarge 

 (After RileyJ 



