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 tbat tbe 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 



