Distribution and present status of the San Jose Scale in Japan. 7" 



thousand trees were introduced from Tokyo and Angio, and some from 

 Hokkaido. 



2. Iwatc-lien. 



More then 17 localities were examined, and the scale was found in 6 of 

 them; the scale does not seem to do as much harm in this province as in Awo- 

 mori, and the number of insects on an infested tree is very small, although 

 it is pretty widety distributed. 



The first stock of apple tree was introduced into Morioka city from 

 Hokkaido by Mr. Yokohama, who visited there 1872 ; the stock was 

 obtained from a foreign preacher at Hakodate, Hokkaido, whose origin is 

 untraceable. 



In 1875 Mr. K. Shima, the governor of Iwate-ken obtained several 

 thousand apple trees from Angio in Saitama-ken, and distributed them to 

 those who desired to cultivate then:i. Since that time the stock was obtained 

 not only from Tokyo and Angio, but also from many other places ; and some 

 of the growers in this province had begun to send much stock to other 

 districts. 



5. AMta-heu. 



12 localities were inspected, in 3 of which the scale was found. The 

 stock came from Angio and Hirosaki, chiefly consisting of apple and pear 

 trees. In some localities the infested trees were about 16 years old, having 

 come from Tokyo through Akita city. Pear trees in this province sometimes 

 suffered greatly from the scale. 



4. Yaviagata-Jicn. 



In Yamagata-ken we know 4 infested localities ; the orchards chiefly 

 consist of apple and pear trees, the stock of which was mdstly obtained from 

 Angio and Tokyo ; the oldest trees are not more than 16 years old. 



Some infested localities are 800 ft. above sea-level and very cold in 

 Winter. At a high elevation undei- such climatic conditions and also from other 

 causes, the scale does not increase with great rapidily, and even one who has 

 some knowledge of the scale insect might over look the San Jose Scale in the 



