148 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 16 
(4) Plants imported for propagation under Regulation 14, 
whether by freight, express or mail are moved to Washington or San 
Francisco in a manner similar to class 3. 
The fourth safeguard is disinfection. This, where necessaiy, is 
performed by vacuum methods for any material reaching the inspec¬ 
tion house at Washington or for such other material as requires disin¬ 
fection at the port of first arrival. For example all seeds from the 
Orient and from out of the way countries receive cyanide fumigation 
with a vacuum. 
The fifth safeguard is field inspection for one to five years in the 
growing season of the plants imported under Regulation 14 for prop¬ 
agation. Federal inspectors visit the nurseries. 
The sixth safeguard is the force of port inspectors who prevent 
the entry of plants and plant products other than as provided in the 
regulations, who assist the customs officers in the search of passengers 
baggage, crew’s quarters and ship’s stores and who are constantly 
searching for possible loopholes by which plant diseases or insect 
pests may enter the United States. 
Interceptions of plant diseases or insects such as are reported to 
you by the Pathologist or by the Entomologist of the Board may 
therefore come from several sources: 
(1) From Federal Inspectors or State Collaborators at ports 
of first arrival. 
(2) From State Inspectors at the destination of the material. 
(3) From Federal Inspectors at Washingtom, D. C. or San 
Francisco, California. 
(4) From Federal Inspectors working over propagating stock 
in the field during the growing season. 
' Since a report on plant interceptions was not made in 1921 I 
append a list of important interceptions of plant diseases during the 
last two years together with the country of origin of each. 
List of Plant Interceptions in 1921 and 1922 
Host 
Agropyrum scabrum 
Citrus aurantium 
Citrus grandis 
il il 
il il 
Citrus sinensis 
Citrus sinensis 
Citrus 
Citrus 
Disease 
Urocystis agropyri 
Pestalozzia sp. 
Cladosporium citri 
Pseudomonas citri 
Phomopsis citri 
Phomopsis citri 
Bacterium citri 
Pseudomonas citri 
Phomopsis citri 
Country 
Tasmania 
Canal Zone 
Mass., Hawaii, Cuba 
Siam 
Brazil, Porto Rico 
Panama, Cuba. 
Japan 
Japan (2) 
Japan 
