302 



NEW YORK STATE MfSEUM 



spring. If this is thoroughly clone for a few years it slioiild result ir 

 reducing the number of this pest materially. 



1902 Felt, E. P. 



Bibliography 

 nate Knt. i-th Rcp't, 1901. X. Y. State Mus. Bui. 53, ]). 741-44 



Willow shoot sawfly 

 Jtijius integer Xort. 

 Sudden wilting of terminal shoots 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 

 ^ * sawHy has been recorded as 

 inflicting considerable damage 

 to both willow and poplar in 

 Washington D. C, and in Mary- 

 and. The attack begins near 

 the tips of the young shoots, 

 causing them to hang down, 

 turn brown and dry during the 

 da\. In one instance an entire 

 fuld was so severely injured 

 that it looked as though it had 

 suffered from severe frost or as 

 « -egg; <(-i.-.rva. dors;.i view: .-sane, if afirc had run over it, and the 

 ty!^ri^<^X^"^'^^^ 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. l- llubl)ard to basket willows in portions of the states 

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

 specits to l)ecome 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 s.nwily 

 side view; ,/, r-lwa view 

 ^— adult — all enlarged exc 

 (After Riley; 



