The Bulletin. 



Volume 28. North Carolina State Board of Agriculture. Number 5. 



Entered at the Raleigh Post-office as second-class mail matter. 



The Bulletin is published monthly by the State Board of Agriculture. 



RALEIGH, MAY, 1907. 



THE SAIST JOSE SCALE (Aspidiotus ijernicious, Comstock). 



By Franklin Sherman, Jr., Entomologist. 



INTEODUCTIOlSr. 



That the San Jose Scale is widespread in ISTorth Carolina may 

 be easily seen by a study of the map shown in Fig. 1. That this insect 

 will if neglected destroy an orchard (especially if the orchard is 

 young when it becomes infested), has been proven beyond all doubt 

 in every eastern State and in many orchards in ISTorth Carolina. 

 That the absolute extermination of the insect in an orchard is not 

 usually practicable has been the common experience of hundreds 

 who have attempted it, though a few appear to have succeeded. 



On the other hand, it has been fully demonstrated that the insect 

 can be so controlled that profitable crops of fruit can still be secured, 

 and there are many growers whose orchards are thoroughly infested 

 who are making a better profit now than before the insect appeared. 



In the commercial orchards of this State the San Jose Scale is 

 very generally held in good control, but those who have so few trees 

 that they do not wish to go to the expense and trouble of purchasing 

 spraying pumps and treating their trees, are the ones who are losing 

 in the fight. 



The real control of this insect depends almost entirely on the 

 energy of the individual grower. If he be watchful, energetic, and 

 thorough in the care of liis own trees he will not suffer materially on 

 account of the neglect of his neighbors. If, on the other hand, he is 

 neglectful, all the enterprise and industry of his neighbors will not 

 save his trees. The number of infested orchards is so great that any 

 system of State supervision of the work against the scale is now 

 out of the question. The Entomologist of the State Department of 



