76 



THE MONTHLY BULLETIN. 



FRUITS MORE SUSCEPTIBLE TO ATTACK. 



Such other fruits as the fig, Japanese persimmon, apple, peach, pear, 

 plum, sapotas, apricot, quince and citrus fruits are capable of support- 

 ing very heavy infestations of the fruit % under conditions of climate 

 and host relationships favorable to fruit fly increase. The commercial 

 type of Japanest persimmon found upon the American market, which 

 (Iocs not grow in Hawaii, was observed by the writer to be quite badly 

 infested in Spain during last October and November in the suburbs 

 of the cities of Barcelona and Valencia. The beautiful orange color 

 of the fruits was defaced with a black discoloration wherever the fruit 

 had been stung. Every quinct exposed for sale upon the markets of 

 Cadiz during October was infested in varying degrees, as also were 



Fig. 19. Cross section of an orange. This fi nil appeared perfectly sunn.], except 

 for the blackened area in the rind on the upper side of the illustration. Upon being 

 cut open, larvse of the Mediterranean fruit fly were found feeding in the fruit directly 

 beneath the discolored rind. Often many sections are thus affected in very ripe fruits, 

 i After Back an.] Pemberton. i 



many of the apples grown throughonl the eastern and Andalusian por- 

 tions of Spain. All lots of peaches upon the markets of Zaragoza and 

 Barcelona were more or less infested during October, and all the highly 

 colored oranges examined upon the heavily fruiting trees about Valencia 

 and Burriana, and in tin- packing houses and freight cars bore fruit 

 fly punctures in varying, though usually small, numbers. Tangerines 

 in the markets of Alicante were found slightly infested. A general 

 discussion of the susceptibility of citrus fruits has been published by 

 the Bureau and is available in those desiring the results of extended 

 observation. 



