388 



BOARD OF AGRICULTURE. [Pub. Doe 



of Mr. E. E. Cole, in the town of Scituate. Mr. Cole wrote 

 me that the orchard contained ninety trees that were set out 

 three years ago. It is situated in a protected spot with 

 trees on three sides, and is within two miles of the ocean in 

 a direct line. He also wrote me that the trees were received 

 from Mr. Rawson, who informed me that he obtained most 



of his nursery stock 

 of that description 

 from the Shady Hill 

 Nursery Company. 



It is therefore prob- 

 able that the Shady 

 Hill nurseries received 

 infested stock from 

 some outside nursery, 

 possibly in New Jer- 

 sey, and have unin- 

 tentionally become a 

 centre of infection for 

 orchards in the eastern 

 part of this State. To 

 what extent this pest 

 has become distribu- 

 ted through the State 

 it is impossible to say, 

 but that it is able to 

 live and destroy fruit 

 trees in some, if not in 

 all, parts of the State 

 seems evident from this history > which is given here quite at 

 length because of the expressed opinion of Messrs. Howard 

 and Smith that it would not survive in New England. 



Description of the Scale and Insect.* 



The female scale is shown in Fig. 1, a, of the natural size, 

 on a moderately infested pear, and at b, greatly enlarged. It 

 is quite flat, nearly circular in outline, about one-sixteenth 



* The cuts used to illustrate this paper are from the United States Department of 

 Agriculture, through the kindness of Prof. L. 0. Howard. 



Fig. 1. — a. San Jose scales on a pear. b. A female 

 scale enlarged. 



