418 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



of the mandarin class (including satsiima and tangerine varieties) 

 on account of a dangerous disease known as citrus canker. Oranges 

 of the mandarin class may be entered under permit, foreign certi- 

 fication, and reinspection on arrival by an inspector of the Depart- 

 ment of Agriculture. 



DOMESTIC QUARANTINES. 



Mediterranean fruit fly and :melon fly quarantine. — Quaran- 

 tine No. 13, revised, promulgated March 12, 1917, effective on and 

 after June 1, 1917, amends and supersedes Quarantine No. 13, pro- 

 mulgated March 23, 1914, This quarantine prohibits the movement 

 from the Territory of Hawaii into or through any State, Territory, 

 or District of the United States, other than Hawaii, of all fruits and 

 vegetables in the natural or raw state except in manner or method or 

 under conditions prescribed in the regulations of the Secretary of 

 Agriculture. Under the quarantine provision has been made in the 

 regulations for the shipment to the mainland of bananas, pineapples, 

 taro, and coconuts. Other fruits and vegetables may be added to 

 this list when it can be shown that such fruits and vegetables in the 

 form in which they are to be shipped are not and can not be a means 

 of conveying either the Mediterranean fruit fly or the melon fly. 



White-pine blister rust quarantine. — Quarantine No. 26, pro- 

 mulgated April 21, 1917, effective on and after June 1, 1917, quaran- 

 tines all the States east of and including the States of Minnesota, 

 Iowa, Missouri, Arkansas, and Louisiana, and prohibits the interstate 

 movement to points outside the quarantined area of all five-leafed 

 pines and currant and gooseberry plants on account of the white- 

 pine blister rust. The quarantine order provides further that no 

 five-leafed pines or black currant plants shall be moved or allowed to 

 move interstate to points outside the area comprising the States of 

 Maine,. New Hampshire, Vermont, Massachusetts, Khode Island, 

 Connecticut, and New York. The States just named are the ones 

 most seriously infected. 



Immediately following the promulgation of this quarantine it 

 was brought to the attention of this board by the State officials of 

 New York and Pennsylvania that considerable shipments of white 

 pine were being made into these States from New England points in 

 violation of State quarantines. In order to stop further shipments 

 of this kind and at the request of the State officials referred to. 

 Quarantine No. 26 was amended May 1, 1917, by ordering that from 

 and after that date no five-leafed pines or black currant plants should 

 be moved or allowed to move interstate to points outside the area 

 comprising the States of Maine, New Hampshire, Vermont, Massa- 

 chusetts, Rhode Island, and Connecticut. 



^ The survey conducted by the Bureau of Plant Industry, in coopera- 

 tion with this board, referred to in last year's report^ indicates that 

 the white-pine blister rust has continued its spread m this country 

 and that it now occurs in several additional States heretofore believed 

 to be free from it. 



Gipsy moth and brown-tail moth quarantine. — Quarantine No. 

 27, promulgated June 8, 1917, effective on and after July 1, 1917, was 

 originally issued November 5, 1912, as Quarantine No. 4, and has 

 been revised and amended annually to embody the annual revision of 



