202 BUREAU OF PLANT QUARANTINE [July-Sept. 
ANNOUNCEMENTS RELATING TO NURSERY STOCK, PLANT, AND 
SEED QUARANTINE (NO. 37) 
INSTRUCTIONS TO COLLECTORS OF CUSTOMS 
T.D. 43980, as Amended by T.D. 4G431, Publishing a List ok Names of Repre- 
sentatives of the Canadian Department of Agriculture Qualified to 
Inspect and Certify Plants, Further Amended (T.D. 46590) 
Treasury Department, 
Office of the Commissioner of Customs, 
Washington, D.C., August 14, 1938. 
To Collectors of Customs and Others Concerned: 
The published list of official representatives of the Canadian Department of 
Agriculture, who are qualified and authorized to inspect and certify plants, 
nursery stock, and seeds for shipment from Canada to the United States 
in accordance with the rules and regulations supplemental to Quarantine No. 
37 (U.S. Department of Agriculture), is amended by removing the name of 
W. H. Lyne and substituting the name of H. F. Olds, who has been designated 
as inspector in charge at Vancouver, B.C. 
Frank Dow, Acting Commissioner of Customs. 
B.P.Q.— 354. August 15, 1933. 
CONDITIONS GOVERNING THE ENTRY AND TREATMENT OF NARCISSUS-BULB 
IMPORTATIONS 
Importations of narcissus bulbs are governed by the provisions of regulation 
14 of Quarantine No. 37, the Nursery Stock, Plant, and Seed Quarantine. Each 
shipment of such bulbs must meet the conditions of entry as set forth in 
Quarantine No. 37 and in the special permit authorizing the shipment with 
respect to certification, marking, freedom from sand, soil, or earth, packing 
materials, inspection and disinfection, if necessary, for injurious insect pests 
and plant diseases, notice of arrival, etc. All such bulbs imported for propa- 
gation must be graded as to type and size before shipment from abroad, and 
the grades and the exact quantity of each indicated by varieties for each con- 
tainer on the true copy of the invoice required with each shipment, Run-of-the- 
field or ungraded bulbs will be refused entry. 
Heretofore, in addition to the general conditions of entry, a prescribed hot- 
water treatment has been given all imported narcissus bulbs as an additional 
condition of entry ; hereafter such bulbs will be inspected at the port designated 
in the permit (provided that mail importations of narcissus bulbs will be 
inspected at Washington, D.C., only) and, if found to be apparently free from 
injurious plant pests, will be released for forwarding to the importer without 
treatment. 
If infested with the greater bulb fly, Merodon equestris, the bulbs shall be 
treated in accordance with the requirements prevailing for the interstate 
movement of bulbs so infested. Such bulbs may be (1) fumigated by exposure 
to calcium cyanide (slow evolving type containing 40 to 50 percent of pure 
calcium cyanide) at the rate of 16 ounces per 100 cubic feet of space for 4 
hours at a temperature of 60° F. or more in an air-tight chamber of approved 
construction; (2) as an alternative, exposed to hydrocyanic acid gas produced 
by the use of 7 ounces of sodium cyanide (50 percent cyanogen), 10% ounces 
of sulphuric acid (66° B.), and 14 ounces of water for 100 cubic feet of space 
under temperature and equipment conditions set forth above for the calcium 
cyanide fumigation; (3) they may also be treated by submersion in hot water 
held at a temperature of 110° to 111.5° for the entire period of 1 hour in an 
approved tank; or (4) by heating the bulbs to a temperature of 110° by means 
of moist conditioned air and holding that temperature for 2 hours, using 
apparatus approved for this treatment. 
If infested with the bulb eel worm, Tylenchus dipsaci, the bulbs shall be 
treated at a plant approved for use during the current season, under the 
supervision of a representative of the Bureau of Plant Quarantine, by sub- 
mersion for 3 hours in water held at a temperature of 110° F., or higher, 
the approved maximum being 111.5°. In the case of bulbs over 2 inches in 
diameter the treating period will be extended to 4 hours. In view of the fact 
