B. E. P. Q. 592 Effective April 20., 1951 
 
 united states detail i . ^ri culture 
 agricul] . _::• :strattcn 
 
 -v. FJEEAU OF .W AtfD PLANT QUARANTINE 
 
 I !AT3 " 
 OF CERTAIN FRUITS AND VEGETABLES UNDSU. HAWAIIAN 'D VEGETAI 
 
 .QUARANTINE NO. 13 ' 
 
 In accordance with 7 CFR 301.13-4 (b) of the regulations supplemental 
 to Hawaiian Fruit and Vegetable Quarantine No. 13, ethylene dibromide 
 fumigation, applied in the following manner, is. hereby ■designated as. an 
 administratively approved procedure that meets the requirements for the 
 certification of avocado, bell pepper, bitter melon, Cavendish banana, 
 cucumber, papaya, pineapple', string beans, and Zucchini squash for inter- 
 state movement from Hawaii : 
 
 Approved atmospheric fumigation . — Treatment is to be given in an 
 approved atmospheric fumigation vault for a period of two hours at a 
 minimum temperature of 70° f. , with a dosage of one-half pound of ethylene 
 dibromide oer 1,000 cubic feet of space, including the load. 
 
 Fumigation vaults and equipment must be approved for that purpose by 
 the Bureau of Entomology and Plant Quarantine. Such vaults must be equipped 
 with a gas-tight glass window to permit a view inside the chamber while 
 fumigation is in progress. The ethylene dibromide must be applied in the 
 liquid state and heated over an electric hot-plate or other suitable means 
 until vaporization is completed. The exposure time of two hours shall be 
 calculated from the time vaporization is completed. A circulating fan shall 
 be kept running in the vault throughout the fumigation period, Commodities 
 to be fumigated must be placed in the vault in open containers. 
 
 Tests show that there is no detectable difference between untreated 
 papaya, pineapple, cucumber, Zucchini squash, and bitter melon, and these 
 commodities fumigated as authorized herein, after a minimum storage of 5 
 f 6 days at 55* F. Fumigated avocados, string beans, bell peppers, and 
 Cavendish bananas show slight though questionable effects, but are con- 
 sidered commercially acceptable. 
 
 Both fumigations and subsequent handling of the fruits and vegetables 
 must be under supervision of a plant quarantine inspector of the Bureau of 
 Entomology and Plant Quarantine. Fumigated fruits and vegetables must be 
 
 uarded against reinf estation during the period prior to shipment . 
 manner satisfactory to the inspector. Certification of these commodities for 
 interstate movement will be based on both the treatment and compliance with 
 the prescribed post -treatment safeguards. 
 
 All costs of treatment and prescribed post-treaUent safeguards, other 
 than the services of the su, nail be borne by the - 
 
 of the commodities, or his representative. 
 
 While the prescribed treatment is judged from experimental tasts to be 
 safe for use with these commodities, the Depart me:.- B no responsibility 
 
 for any damage sustained through or in the course of treatment. 
 
UNIVERSITY OF FLORIDA 
 
 " ' " 3 1 262 09314 8558 ' 
 
 This approval shall be effective April 20, 195 1. 
 (Sec. 8, 37 Stat. 318, as amended, 7 U. S. C. l6l; 7 CFR 301.13-*+ 
 tt>)) 
 
 Done at Washington, D. C, this 20th day of April, 1951. 
 
 Chief, Bureau of ^Entomology and Plant Quarantine