18 BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE [Jan.-March 
NOTICE OF QUARANTINE NO. 37 
NURSERY STOCK, PLANT, AND SEED QUARANTINE 
The fact 1ms been determined by the Secretary of Agriculture, and notice is 
hereby given, that there exist in Europe, Asia, Africa, Mexico, Central and 
South America, and other foreign countries and localities certain injurious 
insects and fungous diseases new to and not heretofore widely distributed 
within and throughout the United States, which affect and are carried by 
nursery stock and other plants and seeds, the words ''nursery stock and other 
plants and seeds", including, wherever used in this notice and the rules and 
regulations supplemental hereto, field-grown florists' stock, trees, shrubs, vines, 
cuttings, grafts, scions, buds, fruit pits and other seeds of fruit and orna- 
mental trees or shrubs, also field, vegetable, and flower seeds, bedding plants, 
and other herbaceous plants, bulbs, and roots, and other plants and plant 
products for, or capable of, propagation. 
Now, therefore, I, D. F. Houston, Secretary of Agriculture, under the au- 
thority conferred by the act of Congress approved August 20, 1912 (37 Stat. 
315), do hereby declare that it is necessary, in order to prevent the further 
introduction into the United States of injurious insect pests and fungous dis- 
eases, to forbid, except as provided in the rules and regulations supplemental 
hereto, the importation into the United States of nursery stock and other plants 
and seeds from the foreign countries and localities named and from any other 
foreign locality or country. 
On and after June 1, 1919, and until further notice, by virtue of said act 
of Congress approved August 20, 1912, the importation of nursery stock and 
other plants and seeds from the above named and all other foreign countries 
and localities, except as provided in the rules and regulations supplemental 
hereto, is prohibited. 
This quarantine shall not apply to nursery stock and other plants and seeds 
covered by special quarantines and other restrictive orders now in force, a 
list of which is given in appendix A of the rules and regulations supplemental 
hereto, nor to the importation by the United States Department of Agriculture 
of nursery stock and other plants and seeds for experimental or scientific 
purposes. 
Done in the District of Columbia this 18th day of November 1918. 
Witness my hand and the seal of the United States Department of 
Agriculture. 
[seal] D. F. Houston, 
Secretary of Agriculture. 
REVISED RULES AND REGULATIONS SUPPLEMENTAL TO NOTICE OF QUARANTINE 
NO. 37, GOVERNING THE IMPORTATION OF NURSERY STOCK AND OTHER PLANTS 
AND SEEDS INTO THE UNITED STATES 
[Effective on and after December 22, 1930, and superseding the regulations heretofore 
issued governing the importation of nursery stock] 
Regulation 1. Definitions 
For the purposes of these regulations the following words, names, and terms 
shall be construed, respectively, to mean : 
(a) Nursery stock and other plants and seeds: Field-grown florists' stock, 
trees, shrubs, vines, cuttings, grafts, scions, buds, fruit pits and other seeds of 
fruit and ornamental trees or shrubs; also field, vegetable, and flower seeds, 
bedding plants, and other herbaceous plants, bulbs, and roots, and other plants 
and plant products for, or capable of, propagation. 
(&) Field seeds: Seeds of cereal, forage, and other field crops. 
(c) Vegetable seeds: Seeds of garden vegetables and otber truck crops. 
(d) Flower seeds: Seeds of annual, biennial, or even perennial flowering 
plants which are essentially herbaceous, namely, plants which perish annually 
down to, and sometimes including, the root (i. e., soft, succulent plants). 
(e) Seeds of hardy perennial plants: Seeds of woody or other plants which 
are not herbaceous and are either of a hardy and woody growth or are not 
killed to the ground in temperate zones. 
