1937] 
SERVICE AND REGULATORY ANNOUNCEMENTS 
69 
Art. 53. For the analysis referred to in the preceding article, a fee of 3 pesos 
($3 national money) will be charged in each case. 
When the seeds indicated in article 52 are imported in quantities not exceed- 
ing 500 grams of each species, they will be exempt from the corresponding 
analysis. 
Corn and Sokghum Seeds 
disinfection required if seed not clean 
Art. 54. The importation of seeds of corn and sorghums (except Johnson 
grass, Sorghum halcpense (L.) Pers.), will be permitted only when they arrive 
free from any plant residuum ; when they are not in a satisfactory condition 
they shall be disinfected witl^ hydrocyanic acid, carbon disulphide, or other 
similar materials, in vacuum, with the period of exposure and dosage estab- 
lished therefor by the Port Plant Inspection Service. 
importation of the plants or parts theeeof pkohibited 
The importation is prohibited of both plants of corn {Zea mays) and parts 
thereof in the ear, silk, husk, stem stage, etc., as well as of straw of guinea 
grass {Panicum majcimum Jaeq.) intended for industrial purposes or as raw 
material used for packing agricultural machinery (implements) or various 
other articles. 
Potatoes foe Seed and Consumption 
PHYTOSANITARY certificate and certificate of healthy OBIGiN REQUIRED 
Art. 55. Every shipment of potatoes introduced into the country, whether for 
planting or consumption, besides complying with the general conditions estab- 
lished by these regulations, must be accompanied by the certificate of healthy 
origin and the phytosanitary inspection certificate referred to in articles 8 
and 9. 
Aet. 56. The certificate of healthy origin, in addition to what is prescribed 
in article 8, must affirm that crops from which the potatoes were derived and 
in the vicinity thereof for a distance of 500 meters, were found free from 
potato wart (Synchytrium endohioticum (Schilb.) Perc), powdery scab {Spoti- 
gospora suhterranea (Walr.) John.), potato tuber worm { (Phthorimaea) 
Onorimo schema operculella Zell.), Colorado potato beetle (Leptinotarsa decem- 
lineafa Say), and filterable viruses. 
REQUIREMENTS FOR SEED POTATOES 
Art. 57. Tubers intended for planting must meet the following conditions : 
{a) The importation of certified seed potatoes only will be permitted, namely, 
those from cultures, which are entered in the lists of special organizations 
for the certification of seed potatoes, which have been grown subject to pre- 
established regulations and periodically inspected by the said services, which 
are under the State or Federal governments or official experiment stations 
of the countries of origin. 
{})) The potatoes must arrive perfectly clean, packed in boxes or barrels 
with copy certificate issued by the official service attached to each container. 
The copy shall also indicate the name of the variety and the number of the 
phytosanitary certificate referred to in article 8. 
(c) The minimal weight of each tuber shall be 30 grams, a tolerance up 
to 5 percent by weight of smaller tubers being permitted. 
TOLERANCE OF SUPERFICIAL DISEASES 
(d) With respect to supei-ficial diseases, such as common scab { Aetlnomiices 
scabies (Thaxter) Gussow), black scab { Rhizorlonia .solan i Kuhn), silver scurf 
iSpondylocladium atrovirciis C. O. Harz), or physiological diseases, a maximal 
aggregate tolerance up to 5 percent by weight of affected tubers will be ad- 
mitted. No tolerance of virus diseases will be allowed and the same is true 
of any disease that does not occur in Argentina. 
