580 Report of Entomologists of the 



the rows of apple trees, although none of the apple trees were at- 

 tacked. The scales on these trees were also apparently unaffected 

 bj the weather during the winter. 



Another orchard similarly situated was badly infested last year, 

 but now the scales are confined to only a few trees, most of them in 

 the interior of the orchard and all of them on a slope away from 

 the lake. 



The third orchard referred to is situated some distance back from 

 the lake and in a hollow, so that it is more protected from the wind 

 than any of the orchards above mentioned. This orchard was also 

 not only very badly infested last year, but the scales have rather in- 

 creased than decreased this year, the winter having apparently had 

 no effect upon them. 



During the past summer, Lecanium scales have also been observed 

 in great numbers in some of the gulleys which are common along 

 the shores of Seneca lake and other lakes in that vicinity. In one 

 large gulley in the vicinity of Hector, a number of small maple and 

 iron-wood trees were found almost covered with these scales. 

 Similar trees, however, growing in exposed places along the banks 

 of this and other gulleys in the vicinity, which, during the summer 

 of 1894 were badly infested with the scales, were observed the past 

 season to be almost free from them. This seems to indicate that 

 exposure to the wind had something to do with reducing the num- 

 bers of these scales. 



Other instances of a similar nature might be mentioned. From 

 the above, however, it does not seem unreasonable to infer that 

 the orchards least protected from the full force of the prevailing 

 winter winds, other things being equal, are most likely to be com- 

 paratively free from the plum scale. 



Food Plants. 



In Garden and Forest ^ Prof. Beach names apple, pear, maple and 

 Cissus as among the food plants of this insect. In Bulletin 83- Mr. 

 Slingerland mentions cherry and peach as well, in addition to other 

 food plants. In addition to some of the above, we have observed 

 this or a closely allied, if not identical, species upon the following: 

 Quince, apricot, cultivated blackberry, cultivated grape, honey locust, 



1 Garden and Forest, July 18, 1894, p. 284. 



2 Bui. 83, p. 687, Cornell Agricultural Experiment Station. 



