^ 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF ENTOMOLOGY— BULLETIN No. 84. 



L. O. HOWARD, Entomologist and Chief of Bureau. 



FUMIGATION OF APPLES FOR THE 



SAN JOSE SCALE. 



BY 



A. L. QUAI^TANCE, 



In Charge of Deciduous Fruit Insect Investigations. 



Issued September 30, 1909. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE 



1909. 



lo8Z<\\ 



