REPORT Ot THE STATE ENTOMOLOGIST I9IO 47 



of the clear mixture is the difficulty of doing thorough work, because 

 when recently applied it can not be seen readily. This trouble can 

 be obviated to a large extent by adding a little milk of lime to the 

 diluted mixture, using it simply as a marker. 



Certain reports have come to this office to the effect that the San 

 Jose scale was becoming less abundant or even dying out in re- 

 stricted localities here and there in the State. There are undoubtedly 

 trees, and possibly orchards, where the scale has not thrived to any 

 great extent in recent years, but we have yet to find substantial 

 evidence showing this to be at all general. The scale appears to 

 be most abundant upon vigorous trees, and while we would not 

 state it as a general rule, we believe that in most instances freedom 

 from infestation is correlated in large measure with reduced 

 vitality and a consequently limited fruition. 



Blister mite (Eriophyes pyri Nal.). This small pest, 

 as shown by personal examination, is generally present in the 

 orchards of Byron and Stafford, Genesee county, frequently being 

 very abundant in those which have not been sprayed. This mite 

 is widely distributed in the Hudson valley, though very rarely 

 numerous enough to cause material injury. It was observed by the 

 writer somewhat generally distributed in orchards at Clarksville, 

 Albany county, and also very prevalent in the orchard of Mr Cecil 

 Boudewyns at La Grangeville. There is no question as to the 

 efficacy of early spring applications of a lime-sulfur wash or a 

 miscible oil for the control of this pest. The general characteristics 

 of its work and control methods have been discussed by the writer 

 in Museum Bulletin 134, page 48. 



GARDEN AND GRAIN INSECTS 

 Rose scale (Aulacaspis rosae Bouche). This 

 insect is widely distributed in both Europe and America, occurring 

 mostly^ upon rose, blackberry and raspberry bushes, particularly in 

 sheltered locations. It is easily recognized by the thin, papery 

 white, oval scale of the female only about one-sixteenth of an inch 

 in diameter and with a small, yellowish patch, the protection of the 

 immature stage, near its apex. The white male scale is easily 

 recognized by its smaller size, the narrow three ridges and the 

 small, yellowish particle at one extremity. The appearance of 

 a blackberry cane rather badly infested by this insect is well shown 

 in figure 4, while the female and male scale are represented much 

 more enlarged in figure 5. 



