B. E. P. Q. 594 Effective October 1, 1951 
 
 LIBRARY 
 STATE >OARD 
 
 UNITED STATES DEPARTMENT OF AGRICTJ7TURE 
 AGRICULTURAL RESEARCH ADMINISTRATION 
 BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE 
 DCESTIC QUARANTINE NOTICES 
 
 ETHYLENE DIBROMIDE FUMIGATION APPROVED AS A CONDITION FOR 
 
 CERTIFICATION OF MANGOES UNDER PUERTO RICAN FRUIT AND 
 
 VEGETABLE QUARANTINE MO. 58 
 
 Pursuant to the authority conferred upon the Chief of the Bureau of 
 Entomology and Plant Quarantine by sections 301.58-2 and 301.58-3 of the 
 regulations supplemental to Puerto Rican Fruit and Vegetable Quarantine 
 No. 58 (7 CFR 301.58, 301.58-2 and 301.58-3), issued under section 8 of 
 the Plant Quarantine Act of 1912, as amended (7 U.S.C.161), and being 
 satisfied frcm the evidence submitted that the movement from Puerto Rico 
 of mangoes which have been fumigated in accordance with the procedure out- 
 lined below will not result in the dissemination of injurious insects likely 
 to affect such fruit, the following administrative instructions are hereby 
 issued, to appear as § 301, 58- 3d in Title 7, Code of Federal Regulations: 
 
 § 301. 5 8- 3d Admi nistrative instruct io ns authorizing the movement of 
 mangoes from Puerto Ric o afte r approve d fumiration . (a) Removal from pr^ 
 hibited status. Mangoes that have been subjected to the approved treatment 
 provided for in paragraph (b) of this section are hereby removed from the 
 prohibited status established by § 301.58-2, and are included in the list 
 for which movement from Puerto Rico into or through any other Territory, 
 State, or District is authorized by § 301. 58-3. 
 
 (b) Approved tr eatment, (l) The approved treatment shall consist of 
 fumigation with ethylene dibromide in an atmospheric fumigation vault, which 
 vault and its equipment have been approved for that purpose by the Bureau of 
 Entomology and Plant Quarantine. The dosage shall be applied at the rate of 
 6 ounces of ethylene dibromide per 1,000 cubic feet of space, including the 
 load. The oxposure shall be of 2 hours duration, calculated from the time 
 that all of the fumigant has been introduced into the chamber. The air and 
 fruit temperature shall be 50° F. or above. The ethylene dibromide must be 
 applied in the liquid state and volatilized within the sealed fumigation 
 chamber by direct contact with a highly heated metal surface over an electric 
 hot plate" or other suitable heating medium. The gas shall be circulated 
 within the chamber continuously for the 2-hour period by an electric fan or 
 blower. 
 
 (2^ Mangoes to be fumigated may be packed as for shipping in crates 
 with shredded packing material. When fruits are individually wrapped in 
 paper the wrappings must be removed before fumigation. .'hen loaded in the 
 fumigation chamber the crates or other containers shall be separated at least 
 2 inches on all sides by wooden strl a or other means. The chamber shall not 
 be loaded to more than 50 percent of capr.cil 
 
 (3) Both the fumigation and the subsequent handling of tl 
 preprmtory to shipment must be under supervision of a plant qu-\r~ntine in- 
 spector of the Bureau of Entomology and Plant Quarantine. Fumigated mango B 
 
UNIVERSITY OF FLORIDA 
 
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 3 1262 09314 8244 
 
 must be safeguarded against reinfestation during the period prior to ship- 
 ment in a manner satisfactory to the inspector* Certification of mangoes 
 for shipment will be b?sed on both the treatment and compliance with the 
 prescribed post-treatment safeguards* 
 
 (U) All costs of treatment ~nd prescribed post-treatment safe- 
 guards, other than the services of the supervising inspector, shall be borne 
 by the owner of the mangoes, or his representative. 
 
 (5) While the prescribed treatment is judged from experimental 
 tests to be safe for use with mangoes, the Department assumes no responsi- 
 bility for any damage sustained through or in the course of treatment* 
 
 This section shall be effective October 1, 1951. 
 
 (Sec. 8, 37 Stat. 318, as .amended, 7 U. S. C. 161; 7 CFR 301.58-2 and 
 301.58-3) 
 
 The purpose of these instructions is to '•■uthorize the interstate move- 
 ment frcm Puerto Rico under certification of mangoes that have been given an 
 approved fumigation treatment. Heretofore such movement has been prohibited. 
 This newly authorized treatment therefore removes a restriction previously 
 imposed. In order to be of maximum benefit to mango shippers, the newly 
 authorized procedure should be made available as soon as possible. Therefore, 
 pursuant to section A of the Administrative Procedure Act (5 U. S. C. 1003) 
 it is found upon good cause that notice and public procedure on the fore- 
 going administrative instructions are unnecessary, impracticable, and con- 
 trary to the public interest, and since those instructions relieve restric- 
 tions they may properly be made effective andor aaid section 4 less than 
 thirty days after their publication in the Federal Register. 
 
 Done at Washington, D. C, this 7th day of September 1^51. 
 
 Chief, Bureau of Ento mology and Plant Qu ^r^ntine