154 EXPERIMENT STATION RECORD. 



author before t be State Horticultural Society in December, 1890 The 

 author's own brief experience with this pest bears out fully statements 

 made elsewhere. 1 "For example,'' lie says, "a single orchard in this 

 State has already lost 1,000 trees, killed by this scale, notwithstanding 

 very considerable efforts on his part to dislodge it, and his present 

 orchard property of some 700 trees is all thoroughly infested. From 

 this place, near Sparta, in Randolph County, the pest has overflowed 

 into surrounding orchards and has possibly been distributed elsewhere, 

 no one knows how far nor in what amount." Within the 7 months pre 

 ceding the date of writing 15 widely separated localities were found 

 within the State thoroughly attacked by the insect. 



After briefly describing the insect and its life history, he notes the 

 numerous food plants of the insect, touches upon the subject of the 

 origin of the scale in the United States, and upon the precautionary 

 measures taken in Illinois, and then goes on to consider its origin in 

 that State and the results of his investigations. 



The fact that attempts to discover it in the State in 1894 by merely 

 collecting scale insects ended in failure is cited as proof that little can 

 be expected from general or indiscriminate searching without clews as 

 to probable places and times of introduction. A letter from Lewisburg, 

 Pennsylvania, stated that specimens of the pest had been sent there 

 from Quincy, Illinois. From this clew the author was finally able to 

 trace the introduction of the pest to infested nurseries in New Jersey, 

 and from lists of Illinois purchasers obtained from New Jersey nursery- 

 men it was learned that some 119 places and 140 persons had been sup- 

 plied with stock. 



Circular letters of warning and advice were sent out and a system 

 of visitation begun that subjected all of the suspected localities to 

 thorough inspection. Ninety eight localities and 113 orchards and nur- 

 series had been visited at the date of writing and 2 additional placesof 

 infestation found that iucreased the number reported to 17. 



In the various orchards visited, from one to several trees were found 

 infested, and at Richview, Washington County, a i'vw scales were found 

 even upon Kiefer pears Avhich, as a variety, have been supposed to be 

 entirely free from attack. No cases were found where the pest had 

 been introduced by trade within the State. 



The author believes it best to limit recommendations of insecticides 

 to a whale-oil soap solution in which 2 lbs., of tlie soap are employed 

 to each gallon of hot water, and quotes the recommendations given in 

 the bulletin of the Division of Entomology of this Department already 

 mentioned. 



The San Jose scale in North Carolina. G. McCarthy (North 

 Carolina Sla. Bui. 138, pp. 45-55, Jigs. 1). — This is a popular bulletin 

 on the San Jose scale (Aspidiotus perntciosus), giving a brief description 

 of tlie insect, its lite history, modes of dissemination, and reporting 7 



U. S. Dept Agr , Div. of Entomology Bui. 3, 11. ser. (E. S. R., 8, ]> 500). 



