UNITED STATES DKPARTMErIT OF AGRICULTURE 
 
 Bureau of Eintomology and Plant Quarantine 
 
 Vfeshington, D. G. 
 
 September 16, 1935. 
 B. E. P. 0.— 418 
 
 (On December 15, 1936 this circular v/ill supersede all previous 
 circulars of this series on the specific subject of the entry 
 of foreign Narcissus bulbs.) 
 
 IMFOm^IATION EOR PROSPEGTr/E ITvIPORTT ^I^S REGA RDING 
 
 THFi^ J^Tm"*oT ecreign' lARcriGUs "bulbs 02]_ A;->tD 
 
 ' AFTER I)]CCEi^)i5f' 15 / 1936 " 
 
 Importations of Narcissus bulbs on and after December 15, 
 1936, may be made iipon compliance with the requirements of 
 Nursery Stock, Plant, and Seed Quarantine No, 37, under permit 
 issued in accordance v;ith the provisions of regulation 3 of that 
 quarantine. 
 
 In an announcement by the Department dated August 1, 1936, 
 it was stated that external examination of Narcissus bulbs cannot 
 be relied upon to determine their freedom from infestation by the 
 bulb eelworm, AnguJJLljJlina dipsaci. In order to prevent the dis- 
 tribution within the United States of foreign Narcissus bulbs in- 
 fested with the bulb eelworm and at the same time to provide for 
 unlim.ited entry as to number and variety, it was further announced 
 that under the provisions of regulation 9 of Nursery Stock, Plant, 
 and Seed Quarantine No, 37, plant quarantine inspectors will re- 
 quire all imported Narcissus bulbs to be given the latest approved 
 treatment as a condition of entry. 
 
 Those in interest are informed that the plant quarantine in- 
 spector ¥/ill construe the ton.i "latest n-pproved treatment" to con- 
 sist of soaking the bulbs in water at a temperature of 70 to 80 
 degrees F. , preferably 75 degrees, for a period of two hours after 
 which the bulbs are to be held in hot water until all the bulbs 
 have reached a temperature of 110 to 111 degrees F, , throughout. 
 The bulbs are then to be held in hot vratcr at a temperature of not 
 less than 110 degrees F. , for r\ period of four hours. As a pre- 
 cautionary measure to check the subsequent dissemination of dis- 
 eases such as basal rot, a pint of formalin may be added for each 
 35 gallons of water, but the addition of the disinfectant is op- 
 tional V7ith the importer. 
 
 Trcatm.ent may be given at the port of first -.rrivr^ or at 
 any point designated in the pemiit, but the permittee v;ill be 
 
UNIVERSITY OF FLORID/ 
 
 3 1262 09241 7798 
 
 .2- 
 
 required to hnvc available o.t such place of treatment the ser- 
 vices of G treating plant caprble of treating the importation 
 according to the method to bo prescribed by the inspector, v;hich 
 is indicated above. The plant concerned may be ovmed, or con- 
 tracted for, by the permittee. Applicants for permits to import 
 Narcissus bulbs are asked to state, v/hen submitting the applica- 
 tion for permit, the point and premises at which they propose to 
 have the bulbs treated, najning the owner of the plant. 
 
 Furthermore, before an inspector v;ill authorize the release 
 of imported bulbs to such plant for treatment, the ovmeT or 
 operator of the treating plant villi bo asked to certify to the 
 Bureau of Entomology and Plant ?cuarr.ntine at Washington, D. C, 
 that the plant is in good uorking order and v/ill be availr.ble 
 for use in treating the importation. 
 
 Shipments not to be treated at or in the vicinity of the 
 port of first arrival may be released for movement in bond to 
 the customs port nearest- the premises at uhich the treatment is 
 to be given. Shipments released from a port for delivery to a 
 treating plant are to be held intrct until the permittee has been 
 instructed by a representative of the Bureau of Sntomology and 
 Plant Quarantine to proceed with the treatment. 
 
 All charges incident to such hot-trc.ter treatment are to be 
 met by the importer or owner, but there uill be no charges for the 
 services of a plant quarantine inspector to supervise the treatment, 
 
 LEE A. STRONG, 
 Ch^i£f ,^ J3uro au_o_f Ent omology__a nd_ Plant Quarantine