74 NEW YORK STATE MUSEUM 



The most effective spraying is while the buds are swollen and be- 

 fore they have opened sufficiently to produce crevices in which the 

 thrips may find shelter and after the blossom clusters have sepa- 

 rated so as to expose the thrips sheltering among the stems of the 

 young fruit. 



BIBLIOGRAPHY 



1904 Daniel, S. M. Ent. News, 15:294-95. 



1907 Moulton, Dudley. U. S. Dep't Agric, Bur. Ent., Bui. 68, pt i, 

 p. 1-16. 



1909 U. S. Dep't Agric, Bur. Ent., Bui. 80, pt 4, p. 51-66. 



1909 Bagnall, R. S. Econ. Biol. Jour., 4:37. 



191 1 Foster, S. W. & Jones, P. R. U. S. Dep't Agric, Bur. Ent. Cir. 

 131, p. 1-24. 



1912 Parrott, P. J. N. Y. Agric Exp't Sta. Bui. 343, p. 1-28. 



