JOURNAL 



OF 



ECONOMIC ENTOMOLOGY 



OFFICIAL ORGAN OF THE ASSOCIATION OF ECONOMIC ENTOMOLOGISTS 



Vol. I JUNE, 1908 No. 3 



Proceedings of the Twentieth Annual Meeting of 

 the Association of Economic Entomologists 



(Continued from April number) 



The following papers were read by title, on account of the authors 

 being" absent, and as the manuscript has been forwarded to the secre- 

 tary they are included as a part of this report : 



THE ORANGE WORM 



(Trypeta ludens) 



By Prof. A. L. Heebera, Chief of the Commission of Agricultural Parasitology, 



Mexico. 



This worm has been the object of long work tending to its destruc- 

 tion, said work being begun during the year 1900, when was estab- 

 lished the Commission of Agricultural Parasitology, in the City of 

 Mexico, which was especially intrusted with the work of combating 

 the pest. The alarm among the Mexican orange growers was the 

 result of the promulgation in California of a law whereby was for- 

 bidden the importation of the Mexican orange, without any distinc- 

 tion as to the place of origin, and under the supposition that every 

 orange grown in Sonora, Nuevo Leon, Tamaulipas, and other states 

 of the Mexican Republic, also contained the germ of a dangerou>s 

 plague. Through the investigations and studies of the Commission 

 of Agricultural Parasitology, it has been demonstrated that this pest 

 exists only in the tropical parts of Mexico, particularly in the states 

 of Guerrero and Morelos, and above all in Yautepee, where over 500 

 orange orchards are in full production. 



As it was considered or thought that the pest was easy to be fought 



