LETTER OF TRANSMITTAL 



U. S. Department of Agriculture, 



Division of Entomology ^ 

 Washingtoti, D. C, April 17, 1903. 

 Sir: I have *iie honor to transmit herewith for publication an 

 account of the i Jore important scale insect and mite enemies of citrus 

 trees, prepared by Mr. C. L. Marlatt, entomologist in charge of 

 experimental fi^ld work. -This bulletin is a somewhat condensed 

 revision of the ..xticle under the same title published in the Yearbook 

 of this Department for 1900. The classes of insects mentioned are 

 the most important enemies of the citrus fruits, and this Office is in 

 receipt almost daily of inquiries concerning them. To meet the need 

 for more widespread dissemination of information on the subject, this 

 paper is recommended for publication in the Farmers' Bulletin series. 

 The information conveyed will be of special service in California, 

 throughout the Gulf region, including Florida, and in our new sub- 

 tropical possessions. 



Respectfully, L. O. Howard, 



Eritomologist. 

 Hon. James Wilson, 



Secretary of Agriculture. 



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