1941] 
SERVICE AND REGULATORY ANNOUNCEMENTS 
25 
Postmasters in the quarantined areas will please be governed accordingly. See 
paragraph 1, section 595, Postal Laws and Regulations. 
Very truly yours, 
Ramsey S. Black, 
Third Assistant Postmaster General. 
B. E. P. Q. 503 February 28, 1941 
Second Revision 
TITLE 7— AGRICULTURE 
Chapter III — Bureau of Entomology and Plant Quarantine 
Part 301 — Domestic Quarantine Notices 
"white-fringed beetle 
regulations modified 
§ 301.72-5c Administrative instructions modifying the restrictions of the 
ivhite-f ringed beetle quarantine by authorizing treatment by methyl bromide 
solution of balled nursery stock of specified thickness. Introductory note. The 
instructions in circular B. E. P. Q. 503 authorizing the treatment of nursery 
stock by a solution of methyl bromide, as last revised (March 15, 1940), pro- 
vided for specified treatments of larvae of each of the species of white-fringed 
beetle, Pantomorus leucoloma Boh., the more common species, and P. peregrinus 
Buch., the new species. As a result of further investigations, the instructions 
are revised to provide for a modified treatment applying to both species and to 
all regulated areas other than in New Orleans and vicinity. The treatment 
authorized in the last revision of the circular is continued for the New Orleans 
area for the reason that the consistency of the soil in that area is such that 
the treatment can be used effectively only on soil balls not greater than 7 inches 
in diameter. In other areas, effective results are obtained on soil balls up to 
8 inches in diameter. The specifications for treatment in the New Orleans area 
are brought forward in the instructions which follow. 
(a) Treatment authorized. Pursuant to the authority conferred upon the 
Chief of the Bureau of Entomology and Plant Quarantine by subsection (a) 
of § 301.72-5, Chapter III, Title 7, Code of Federal Regulations (Regulation 
5 of Notice of Quarantine No. 72 on account of the white-fringed beetle), the 
following method of treatment for balled plants is hereby authorized when car- 
ried out under the supervision of an authorized inspector of the United States 
Department of Agriculture. 
(b) Type of material authorized. (1) In Orleans Parish, including the city 
of New Orleans, and Saint Bernard Parish, La. The treatment shall be applied 
only to plants in soil balls not greater than 7 inches in diameter nor greater than 
7 inches in thickness when not spherical. 
(2) In all regulated area other than the parishes of Orleans and Saint Ber- 
nard, La. The treatment shall he applied only to plants in soil balls not greater 
than 8 inches in diameter nor greater than 8 inches in thickness when not 
spherical. 
(c) Treatment method, (1) In all regulated areas. 
(1) The soil halls around the roots of plants must be buried in sand and 
plunged in boxes or trays approximately 1 foot deep, which are watertight. 
(ii) A 2-inch space filled with sand shall he provided between the soil halls, 
also above and beneath them. 
(iii) Such soil halls shall be treated with a solution of methyl bromide and 
alcohol at a concentration of 0.3 percent methyl bromide and 0.G percent de- 
natured ethyl alcohol by volume in water. The solution is to be prepared by 
first mixing the methyl bromide and alcohol together and then adding this 
mixture to the water and mixing thoroughly. 
(iv) The aqueous solution of methyl bromide and alcohol shall then he applied 
evenly over the surface of the sand around the plants at the rate of 40 gallons 
per 100 square feet of surface area by means of a sprinkling can or sprayer. 
(2) Exposure and temperature, (i) In Orleans Parish including the city of 
New Orleans, and Saint Bernard Parish, La. After the required dosage has 
