BULLETIN OF THE 



lOFAffii 



No. 192 



Contribution from the Bureau of Entomology, L. O. Howard, Chief. i 



Aprils, 1915. 



(PROFESSIONAL PAPER.) 



INSECTS AFFECTING VEGETABLE CROPS IN 

 PORTO RICO.^ 



By Thomas H. Jones, 

 . Entomological Assistant, Truck Crop and Stored Product Insect Investigations. 



INTRODUCTION. 



The following article can not be considered to include references to 

 all the many insects which attack vegetable crops in Porto Rico. 

 Undoubtedly there are many other insect species which are pests on 

 plants, commonly classed as vegetables, that are grown on the 

 island. Nevertheless it seems well to present the data available — 

 data which have been obtained from references already published 

 and from observations made by the writer since November, 1911, 

 while a member of the staff of the experiment station of the Porto 

 Rico Sugar Producers' Association. Especially does it seem timely 

 to pubhsh this paper because of the effort being made by the United 

 States Department of Agriculture to obtain information upon the 

 obnoxious insects Hable to introduction into the United States, and 

 because of the steps that are being taken to prevent them from being 

 introduced. While it wiU be noted that many of the species men- 

 tioned in the following pages already occur in the United States, 

 several are not known to be present on the mainland. 



The determinations of the insects mentioned as having been ob- 

 served by the writer have been made, with few exceptions, by spe- 

 cialists of the Bureau of Entomology, United States Department of 

 Agriculture. The names of several of the wild host plants and 

 of the fungi have been supplied by Mr. J. R. Johnston, pathologist 

 of the experiment station of the Porto Rico Sugar Producers' 

 Association. 



It may bo said in general that vegetables suffer severe injury in 

 Porto Rico from insects. The vegetables grown ai-e, for the most 

 part, the Ham(! as those of tli(! markets of the United States, although 



'The obsflrvatlon.s on which th'fa paper was founded wore conducted by the author while a collaborator 

 In Porto Ulco. 



Note.— ThLs bulletin enumerates the more common Insects attacking vogelal)l» crops in I'orto Uloo; 

 of interest to entomologists. 

 78774'— Bull. 192—15 



