274 NEW YOKE STATE MUSEUM 



Prof. M. Y. Slingerland, of the Cornell University Experiment 

 Station lias made a study of this insect in the plum orchards of 

 "Western New York, the results of which are published in Bulletin 

 83 of the Station — describing it, narrating its destructiveness, nam- 

 ing the few plants upon which it is believed to have passed from 

 the plum, its life-history, its natural enemies, and approved methods 

 for combatting it. 



This scale has been found abundantly in some localities in Eastern 

 New York : in Orange Co., it has been mistaken by some fruit- 

 growers for the San Jose scale, but from their great dissimilarity in 

 appearance, there is hardly an excuse for confounding them. 



The figure representing an infested plum branch is from a photo- 

 graph taken by the Geneva Experiment Station, and employed in 

 illustrating a brief notice of the insect by Prof. S. A. Beach, in 

 Garden and Forest for July 18, 189i, from which paper it has been 

 obtained. 



In the preceding brief notices of some of our more common 

 scale insects, particular mention of the insecticides available for 

 their destruction and methods of application, have been omitted, as 

 those which will be indicated for use against the San Jose scale, will 

 be found equally serviceable against each one of them. 



