476 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 9 



ascertain if Opius humilis would attack the fruit -fly in its various host 

 fruits, employing tents in part and cages in part. The work carried 

 on later by Dr. E. A. Back, of the Federal Bureau of Entomology, has 

 confirmed the impression made by this preliminary series. No fruit 

 adequately experimented with failed to produce parasites though 

 in highly variable numbers. The rate of reproduction of the parasites 

 was found to be somewhat greater with favorable conditions than that 

 of the fruit-fly. The tentative conclusions then arrived at have re- 

 quired no modification as the result of the later work. It seemed then, 

 as it does now, that under favorable conditions, from the thin meated 

 fruits, such as coffee, terminalia and elengi, the parasites might well 

 practically eliminate the fruit-fly but in the case of fleshy fruits, such 

 as mango, guava, peach and Chinese orange, the mechanical difficulty 

 of parasitizing the maggots would prevent the parasite being any 

 great factor. 



As the result of three years' connection with the work on the fruit-fly 

 in Hawaii, Africa and Australia, the writer is convinced that under 

 Hawaiian conditions, the fruit-fly must be controlled by the use of 

 parasites to reduce the flies to the point where the poisoned balls will 

 be effective. The work done seems to make this conclusion certain. 

 Under South African conditions, which simulate more closely those 

 in California, it is quite certain that Mr. Mally has made as complete 

 a commercial success of the poisoned bait method as is ordinarily 

 obtained in economic entomology. 



Secretary E. O. Essig: There are a number of applications for 

 membership which should be signed and referred to the membership 

 committee of the general association and for this purpose I move that 

 the chair appoint a membership committee for this purpose. 



This motion was duly seconded and passed. 



Chairman H. J. Quayle: As this committee must consist entirely 

 of active members it will be necessary for Dr. E. G. Titus and myself to 

 act. The meeting is adjourned until tomorrow morning at 10 o'clock. 



The meeting of August 11 was called to order b}^ chairman H. J. 

 Quayle at 10 o'clock, a. m. 



Chairman H. J. Quayle: For the first thing we will have the re- 

 port of the nominating committee. 



REPORT OF THE NOMINATING COMMITTEE 



The report of the nominating committee for the officers of the Pacific Slope Branch 

 of the American Association of Economic Entomologists for the ensuing year is as 

 follows : 



For chairman, A. W. Morrill, Phoenix, Arizona. 



For vice-chairman, R. A. Cooley, Bozeman, Mont. 



For secretary-treasurer, E. O. Essig, Berkeley, Cal. 



