LETTER OF TRANSMHTAL 



U. S. Department of Agriculture, 



Bureau of Entomology, 

 Washington, D. C, July 20, 1909. 

 Sir: I have the honor to transmit herewith, for publication as 

 Bulletin No. 68, nine papers deahng with deciduous fruit insects and 

 insecticides. These papers, wliich w^ere issued separately during the 

 years 1907-1909, are as follows : The Pear Thrips, by Dudley Moulton ; 

 The Spring Canker-Worm and The Trumpet Leaf-Miner of the Apple, 

 by A. L. Quaintance; The Lesser Peach Borer, by A. A. Girault; The 

 Lesser Apple Worm, by A. L. Quaintance; Grape Root- Worm Investi- 

 gations in 1907, by Fred Johnson; Demonstration Spraying for the 

 Codling Moth, by A. L. Quaintance, S. W. Foster, Fred Johnson, and 

 A. A. Girault; The Grape-Leaf Skeletonizer, by P. R. Jones; The 

 Peach-Tree Barkbeetle, by H. F. Wilson. 



Respectfully, L. O. Howard, 



Chief of Bureau. 

 Hon. James Wilson, 



Secretary of Agriculture. 



