42 
BULLETIN 640, U. S. DEPARTMENT OF AGRICULTURE. 
Federal agents in Hawaii and bear a Federal certificate of inspection. 
(Fig. 31.) 
In Hawaii every precaution is taken to have bananas and pine- 
apples grown under conditions that will prevent spread of the fruit 
fly. Plantations, packing sheds, and packing materials are inspected 
sufficiently of ten to insure their being in keeping with the regulations 
of the Federal Board. No fruit can be lawfully accepted for trans- 
portation to the mainland by any transporting company in Hawaii 
until it has been inspected and passed and permits for its acceptance 
have been issued to the transporting company by agents of the Board. 
Furthermore, no fruit can be lawfully removed from ships at ports 
of entry at the mainland unless the permit issued the transporting 
company in Hawaii is found attached to the bill of lading by the 
Fig. 33.— Pineapples never breed fruit flies in Hawaii. To be doubly certain that the packing material 
contains no fruit-fly pupae, all crates of pineapples unloaded on the docks at San Francisco are fumigated 
with gas after tarpaulins have been thrown over the crates to prevent the gas from escaping. (Photo 
by Maskew.) 
Federal agent, and unless each package or crate of fruit bears the 
inspection tag above referred to. (Figs. 32 and 33.) 
Passengers and ships are permitted to take on board in Hawaii 
fruits of all descriptions for consumption while en route to the coast. 
All contraband fruits, however, must be eaten or destroyed before 
the ship comes within the 3-mile limit of the mainland. Otherwise 
the transporting company, or the individual passenger, whichever is 
the offender, is subject to fine or imprisonment, or both. 
SUMMARY. 
The Mediterranean fruit fly has become so thoroughly entrenched 
in Hawaii as a result of favorable climatic and host conditions that 
artificial remedial measures for its control are not practicable. Intro- 
duced parasites have multiplied wonderfully well and already have 
proved of practical value in safeguarding the coffee crop from losses 
due to fruit-fly attack. Though it is certain that the parasites can 
