IQ P.riiKAU OF ENTOMOLOGY AND PLANT QUARANTINE [Jan.-March 
may be made, that the soil shall be entirely removed from the stock by shaking 
or washing, or (///) that it shall be shown by evidence satisfactory to the 
inspector that the plants concerned were produced in a certified greenhouse. 
(3) Greenhouses of class III may be certified upon compliance with all the 
following conditions with respect to the greenhouses themselves and to all 
potting btHls, heeling-in areas, hotbeds, coldframes, and similar plots: 
(a) Ventilators, doors, and all other openings in greenhouses or coldframes 
on premises in class III shall be kept screened in manner satisfactory to the 
inspector during the period of tiight of the beetle, namely, south of the north- 
ern boundaries of Maryland and Delaware between Jiuie i and October 1, inclu- 
sive, or north thereof between June 15 and October 15, inclusive. 
(&) Prior to introduction into nurseries or greenhouses, sand, soil, earth, 
peat, compost, or manure taken from infested locations or which may have 
been exposed to infestation, must be sterilized or fumigated under the direc- 
tion and supervision of, and in manner and by method satisfactory to the 
inspector. If such treated sand. soil, earth, peat, compost, or manure is not 
to be immediately used in such greenhouses, it must be protected from possible 
infestation in manner and by method satisfactory to the inspector. 
(e) All potted plants placed in certified greenhouses of class III and all 
potted plants to be certified for interstate movement therefrom (/) shall be 
potted in certified soil: (ii) shall, if grown outdoors south of the northern 
boundaries of Maryland and Delaware at any time between June 1 and 
October 1, inclusive, or north thereof at any time between June 15 and October 
15, inclusive, be kept in screened frames while outdoors; (///) shall, if grown 
outdoors during any part of the year, be placed in beds in which the soil or 
other material shali have been treated in manner and by method approved by 
the Bureau of Entomology and Plant Quarantine to eliminate infestation ; and 
(/r) shall comply with such other safeguards as may be required by the 
inspector. 
(4) Cut flowers and other parts of plants without roots or soil may be certi- 
fied for movement either (a) when they have been inspected by an inspector 
and found free from infestation, or (h) when they have been grown in a green- 
house of class I or in a certified greenhouse of class III and are transported 
under such safeguards as will in the judgment of the inspector prevent infesta- 
tion. (See also sec. A (3) of this regulation.) 
(5) Nursery and ornamental stock originating on or moved from unclassi- 
fied premises may be certified by the inspector under either one of the following 
conditions: (a ) That the soil shall be entirely removed from the stock, (&) that 
the roots shall be treated by means approved by the P>ureau of Entomology 
and Plant Quarantine in manner and by method satisfactory to the inspector, 
or (c) that it shall be shown by evidence satisfactory to the inspector that 
the accompanying soil was obtained at such points and under such condi- 
tions that in his judgment no infestation could exist therein. 
(6) Nur.serymen, florists, dealers, and others, in order to maintain their 
classified status, (a) shall restrict their purchases or receipts of nur.sery and 
ornamental stock, sand, soil, earth, peat, compost, and manure within the regu- 
lated area to articles which have been certified under these regulations as to 
each such article and the said certificate shall accompany the articles when 
moved; (h) shall obtain approval of the inspector before such articles are 
received on their premises or moved from the open on their own premises into 
certified greenhouses; and (c) shall also report immediately in writing all 
purcliases or receipts of such articles secured from within the regulated area. 
Nurserymen, florists, dealers, and others whose premises are classified as 
class III shall, in addition, report immediately on forms provided for that 
purpose all their sales or shipments of such articles both to points outside 
the regnlated areas and to other clas.>^ified nurseries or greenhouses within the 
regulated areas. Certification may be denied to any person who has omitted to 
make the report or reports required by this regulation, and such denial of 
certification .shall continue until the information so omitted has been supplied. 
(7) Nursery and ornamental stock imported from foreign countries and not 
re.shipped from the port of entry in the unopened original container may be 
certified for movement under these regulations when such stock has been 
inspected by an inspector and found free from infestation. 
(8) Nursery and ornamental stock originating outside the regulated areas 
and certified stock originating in classified nurseries or greenhouses may be 
certified for reshipment from premises other than those on which they orig- 
