THE MEDITERRANEAN FRUIT FLY. 43 
never exterminate the fruit fly or cause the raising of the quarantine 
against Hawaiian fruits, much ultimate good is expected of them. It 
is hoped that by lessening the abundance of the fruit fly many fruits 
that now become badly infested before they are ripe enough to eat 
may be able to mature uninfested to a point where they will be useful 
to man. At present almost all edible fruits in Hawaii, and many 
ornamentals, making a total of 72 kinds of fruit, are subject to attack. 
Judging from the past history of the Mediterranean fruit fly, only 
the vigilance of quarantine oflicials and the hearty cooperation of 
travelers will prevent its establishment in California and the Gulf 
States. Every barrier possible has been erected by State and Federal 
quarantines, so that there is now little danger of the pest gaining 
entry through the medium of commercial shipments of fresh fruits. 
But quarantine officials have found the pest in fruit concealed by 
tourists and in mail and express packages sent from infested countries 
by uninformed persons, and it is by such avenues that the pest is most 
likely to be introduced. These avenues, also, are the most difficult 
of detection, and their closing is dependent mainly upon educa- 
tional campaigns to convince the public of the necessity of quaran- 
tine measures, and upon the unselfishness and personal honesty of 
travelers. At present only bananas, pineapples, taro, coconuts, and 
certain other vegetable products not subject to attack, are permitted 
entry from Hawaii, and these only after the regulations of the 
Federal Horticultural Board have been fulfilled. 
