238 THE MONTHLY BULLETIN. 



present by the Treasury Department whereby all passengers could be 

 made to set forth all plants, fruits, nuts, and seeds in their possession 

 or in any of their belongings. Such blanks could be supplied en route 

 in the same manner as those now in use, and taken up upon arrival 

 by the horticultural officers. If adopted, a contrast in color from 

 those in use by the Treasury Department would facilitate collection. 

 The use of such forms would not eliminate the searching of baggage ; 

 they would serve to make the operation more complete and protective, 

 and I am of the opinion if the danger attendant upon bringing in 

 such material were set forth plainly upon the declaration papers, but 

 very few, if any, would fail to make a faithful statement of all such 

 articles ia their possession. 



CONCLUSIONS. 



The clean culture campaign has not controlled the Mediterranean 

 fruit-fly even in the policed district, nor has it reduced the amount of 

 infested material recorded as reaching the mainland. 



The value or not of the clean culture campaign is purely a local 

 problem, and the desirability of a continuance, also provision for its 

 maintenance, is in my opinion a matter for the local authorities to 

 decide. 



The melon fly (Dacus cucurhitce) is the source of great financial 

 loss to the producers, and all of its hosts should be included in the list 

 of material covered by the United States quarantine order. 



The horticultural interests of the mainland would be far better pro- 

 tected by a Federal supervision of horticultural exports similar to the 

 system in force in the gypsy moth area, than by continuing the 

 clean-up of house yards in Honolulu and its environs. 



Every article of commerce between the islands and the mainland, 

 including vessels and persons, constitute a potential danger of intro- 

 ducing the fruit-fly at all times, and the commercial shipments of 

 bananas under the present system of Federal inspection do not con- 

 stitute a greater danger of infestation than other articles of general 

 commerce. 



The question of juail, sealed baggage and passengers' clothing as 

 avenues of entrance open at present to various hosts of the Mediter- 

 ranean fruit-fly is one of grave importance, and measures looking to 

 the complete control of the same should be devised in such a manner 

 as will withstand any attempt to defeat their legality, and authority 

 given to the horticultural quarantine officers for their prompt enforce- 

 jnent. 



