No. 4.] SAN JOSE SCALE. 299 



Since a Japanese quince with vigorous roots will throw out 

 an abundance of new shoots year after year as the old wood 

 dies off, the continued infestation since 1884 of the bushes 

 previously mentioned does not seem beyond the limits of 

 possibility. 



In a recent bulletin Dr. Howard gives the present distribu- 

 tion of the San Jose scale in the United States as follows : — 



Alabama, Arkansas, Arizona, California, Connecticut, 

 Delaware, District of Columbia, Florida, Georgia, Idaho, 

 Illinois, Indiana, Kentucky, Maryland, Massachusetts, 

 Michigan, Minnesota, Mississippi, Missouri, Nevada, New 

 Jersey, New Mexico, New York, North Carolina, Ohio, 

 Oregon, Pennsylvania, South Carolina, Tennessee, Texas, 

 Virginia, Washington, West Virginia. It has been found 

 also in British Columbia and Ontario, Canada. 



In the same bulletin Dr. Howard gives a list of the in- 

 fested localities in Massachusetts as furnished him by Pro- 

 fessor Fernald. It includes : Amherst, Bedford, Brookline, 

 Cambridge, Jamaica Plain, Reading, Eoslindale, Scituate, 

 South Chelmsford, South Framingham, Worcester. To the 

 above list Professor Fernald now adds Auburndale and Bel- 

 chertown, while the writer has recently discovered a limited 

 occurrence of the scale in Maiden. 



As is well known the principal method by which this in- 

 sect has been disseminated throughout the country is through 

 the sale of infested nursery stock. Without doubt local 

 distribution is facilitated by birds and insects. The young 

 lice, although minute, are active, and, readily crawling upon 

 the feet of birds or the bodies of insects, may be transported 

 to a considerable distance. In an infested orchard large 

 numbers of the scale usually will be found under and around 

 birds' nests ; and, when examining trees for the scale, those 

 in which birds' nests are located should receive the most 

 critical attention. 



Description of the Insect. 



When the San Jose scale is abundant, its presence is soon 



betrayed by its effect upon the trees. Infested trees are 



usually stunted, do not put forth vigorous foliage and make 



but little growth. An examination of such sickly trees 



