The Bulletin. T 



Agriculture and his assistants may inspect and advise, but it is 

 impossible that they should follow up every case and compel treat- 

 ment. It must be left to each individual grower to look after the 

 treatment of his own trees. 



There is so much demand for detailed information about this insect 

 that in this Bulletin we have attempt€d to give a fairly full account 

 of it, and the remedies now most relied upon for its control. 



E^VBLY HISTORY OF THE SAN JOSE SCALE. 



There has been much speculation as to the original home of the 

 San Jose Scale, and it was not until 1901-2 that the matter seemed 

 to be definitely settled. At that time Mr. Marlatt of the United 

 States Department of Agriculture at Washington made a trip of 

 exploration in Japan, China, and other eastern countries, which 

 established the fact that the original native home of the San Jose 

 Scale is in northern China. From there it was introduced into Cali- 

 fornia (probably by the importation of infested plants) about 1870. 

 The insect remained unknown to' science, however, until 1880, when 

 it was first scientifically described and named. 



The insect was not discovered in the eastern United States until 

 August, 1893, or about fourteen years ago, when it was discovered at 

 Charlottesville, Va. It was soon found that the infested trees had been 

 purchased from nurseries which had been introducing stock from 

 California, and these nurseries were found to be infested also. Fruit- 

 growers and entomologists then began to make special search for the 

 pest, and in 1897, only four or five years after its discovery in Vir- 

 ginia, it was known to exist in twenty States east of the Mississippi 

 River. It must not be supposed from this that the infestation at 

 Charlottesville was the only source of scale in the east. There can 

 be no manner of doubt that it became established in many other 

 localities and in several other eastern States at about the same time 

 by the importation of infested plants; but Charlottesville happened 

 to be the place at which it was first discovered. 



BRIEF HISTORY OF THE INSECT IN NORTH CAROLINA. • 



So far as the evidence shows, the San Jose Scale gained its first 

 foothold in Xorth Carolina at or near Southern Pines, Moore County. 

 It probably became established there about 1892, or 1893, approx- 

 imately the same time as it became established at Charlottesville, 

 Va. It was iiot recognized, however, until about 1895, when it had 

 already gained a strong foothold. In 1897 it was known in six or 

 eight localities in the State, and in 1900 it was known in about twenty 

 places. At this time interest became more keenly aroused over it, 

 and new localities came to light with great rapidity. In August, 



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