22 



this insect, and many others presented a sorry appearance on account 

 of the numerous mines. 



Pulvinaria innumerabilis Rath v. — This destructive scale insect is 

 being constantly brought to notice here and there in the State, although 

 during the past few years it appears to have been less destructive than 

 usual. On July 5 this scale was reported as injuring the elms seri- 

 ously at Sandy Hill, K. Y., and affecting the maples to a less extent. 

 At that time the young had not left the protecting filaments of the 

 mother, although they were numerous in the cottony secretion. A few 

 days later, twigs of maple were received from Baldwin, Long Island, 

 their condition revealing a very serious attack. One side of each twig 

 was nearly covered by the adults, while the young fairly swarmed over 

 everything. I have also received twigs badly infested with this scale 

 from Batavia and Flushing, N. Y., and Arlington, X. J. 



Lecanium armeniacum Craw. — One of the interesting features of the 

 year was the detection of this scale (identified by Mr. Pergande), in 

 Erie County, H". Y. In response to inquiry about its introduction, Mr, 

 Hayes stated that he could not account for it in any manner. The vine 

 upon which the species was found had been planted ten years. His 

 neighbors had not set out any Californian stock, and he had used no 

 fruit from that State for several years. A possible source of introduc- 

 tion is the sending to this State in 1896 of examples of this scale infested 

 with Corny s fusca, by Mr. Ed. M. Ehrhorn, horticultural commissioner 

 of Santa Olara County, Cal. This was done, it was stated, in the hope 

 that the parasite would attack the New York plum scale. 



Lecanium cerasifex Fitch. — This scale, identified as probably this 

 species by Mr. Coquillett, has been very injurious to several soft maples 

 in Albany the past two or three years. The trees have been dwarfed by 

 the attack and each summer are more or less blackened by the copious 

 honeydew secreted by the insects. Many of the limbs are nearly covered 

 with the scales on their under surface, and during a portion, at least, of 

 July and early in August the young swarm over branches and leaves. 



The San Jose Scale. — This pest, Aspidiotus pernigiosus Comst., has 

 demonstrated its ability to thrive in the Hudson River Valley as far 

 north as Albany, at least. Just across the river at East Greenbush, 

 an infested fruit garden has been under my eye for over a year. The 

 scale has spread in spite of the efforts of the owner, who used whale- 

 oil soap to some extent. It has ruined many currant bushes and badly 

 stunted a number of pear trees, besides infesting to a certain degree 

 peach and apple trees. On the 9th of last July numerous young were 

 to be found on the more tender shoots, some appearing as though dusted 

 with pollen on account of the larvae clustered at their tips. Develop- 

 ing scales were found in small numbers on the leaves and abundantly 

 on the fruit. At its present rate of multiplication, most of the young- 

 trees in that garden will be ruined in a few years. Only this spring 

 I found the scale at Lebanon Springs, some 20 miles from the Hudson 



