No. 4.] THE SAX JOSE SCALE. 387 



well at least during the summer of 1894. On June 10 live 

 scales were observed on the trees transplanted to the insect- 

 ary greenhouse, and on the 14th the young were swarming 

 all over them, and even extended to some small apple trees 

 growing near in the same part of the greenhouse. As this 

 seemed to settle the question of their ability to survive our 

 winters here in Amherst, or at least the winter of 1894-95, 

 which was an average one, I had all these trees very care- 

 fully burned, to prevent any further spreading of the pest. 



As soon as it was discovered that the San Jose scale had 

 been received here on nursery stock from outside of the 

 State, 1 feared that other nurseries might have become in- 

 fested in a similar manner, and therefore I sent my assistant, 

 Mr. Lounsbury, to different nurseries to look for them. He 

 reported that on April 19 he found the San Jose scale on 

 two plum trees, two pear trees and a rose bush in Roslin- 

 dale, Mass. The plum trees were badly infested with living 

 scales, while the pear trees and rose bush were but slightly 

 so. The scales occurred on all parts of the trees, but were 

 the least numerous on the new growth. The pear trees had 

 been on the grounds for three years and the plum trees two 

 years. Mr. Lounsbury was informed that these trees were 

 obtained from a local agent in West Roxbury, who claimed 

 to have purchased them from the Shady Hill nursery, Bed- 

 ford, Mass. On April 23 Mr. Lounsbury visited the Shady 

 Hill nursery, and found the San Jose scale alive in large 

 numbers on several different varieties of apple trees. Mr. 

 Kohler, in charge of the nursery, told him that these trees 

 were bought from the Cambridge nurseries, where they had 

 been growing three or four years. The Cambridge nursery 

 was then visited, and pear, peach and apple trees were found 

 infested with the seale, and many of the worst-infested trees 

 were dead. As no stock had been added to tJiis nursery for 

 three years, these trees must have been infested at least that 

 length of time. I have not been able to learn from what 

 source the stock in this Cambridge nursery was obtained. 



On July 9 I received a twig of an apple tree from Mr. W. 

 W. Rawson, with the request to inform him what the matter 

 was with it. An examination showed that it was infested 

 with the San Jose scale. Further correspondence revealed 

 the fact that the twig came from an apple tree in the orchard 



