7 C.F.R. § 319.74-2
(c) Fumigation for agromyzids. Cut flowers imported from any country or locality and found upon inspection to be infested with agromyzids (insects of the family Agromyzidae) must be fumigated at the time of importation with methyl bromide in accordance with part 305 of this chapter, with the following exceptions:
(d) Chrysanthemum white rust hosts.
(1) The following Chrysanthemum, Leucanthemella, and Nipponanthemum spp. are considered to be hosts of chrysanthemum white rust:
| Accepted name of susceptible species | Synonyms | Common name |
|---|---|---|
| Chrysanthemum arcticum L. | Arctanthemum arcticum (L.) Tzvelev and Dendranthema arcticum (L.) Tzvelev | Arctic chrysanthemum and arctic daisy. |
| Chrysanthemum boreale (Makino) Makino | Chrysanthemum indicum L. var. boreale Makino and Dendranthema boreale (Makino) Ling ex Kitam | |
| Chrysanthemum indicum L. | Dendranthema indicum (L.) Des Moul | |
| Chrysanthemum japonense Nakai | Dendranthema japonense (Nakai) Kitam. and Dendranthema occidentali-japonense Kitam | Nojigiku. |
| Chrysanthemum japonicum Makino | Chrysanthemum makinoi Matsum. & Nakai and Dendranthema japonicum (Makino) Kitam | Ryuno-giku. |
| Chrysanthemum × morifolium Ramat | Anthemis grandiflorum Ramat., Anthemis stipulacea Moench, Chrysanthemum sinense Sabine ex Sweet, Chrysanthemum stipulaceum (Moench) W. Wight, Dendranthema × grandiflorum (Ramat.) Kitam., Dendranthema × morifolium (Ramat.) Tzvelev, and Matricaria morifolia Ramat | Florist's chrysanthemum, chrysanthemum, and mum. |
| Chrysanthemum pacificum Nakai | Ajania pacifica (Nakai) K. Bremer & Humphries and Dendranthema pacificum (Nakai) Kitam | Iso-giku. |
| Chrysanthemum shiwogiku Kitam | Ajania shiwogiku (Kitam.) K. Bremer & Humphries and Dendranthema shiwogiku (Kitam.) Kitam | Shio-giku. |
| Chrysanthemum yoshinaganthum Makino ex Kitam | Dendranthema yoshinaganthum (Makino ex Kitam.) Kitam | |
| Chrysanthemum zawadskii Herbich subsp. yezoense (Maek.) Y. N. Lee | Chrysanthemum arcticum subsp. maekawanum Kitam, Chrysanthemum arcticum var. yezoense Maek. [basionym], Chrysanthemum yezoense Maek. [basionym], Dendranthema yezoense (F. Maek.) D. J. N. Hind, and Leucanthemum yezoense (Maek.) á. Löve & D. Löve | |
| Chrysanthemum zawadskii Herbich subsp. zawadskii | Chrysanthemum sibiricum Turcz. ex DC., nom. inval., Dendranthema zawadskii (Herbich) Tzvelev, and Dendranthema zawadskii var. zawadskii | |
| Leucanthemella serotina (L.) Tzvelev | Chrysanthemum serotinum L., Chrysanthemum uliginosum (Waldst. & Kit. ex Willd.) Pers., and Pyrethrum uliginosum (Waldst. & Kit. ex Willd.) | Giant daisy or high daisy. |
| Nipponanthemum nipponicum (Franch. ex Maxim.) Kitam | Chrysanthemum nipponicum (Franch. ex Maxim.) Matsum. and Leucanthemum nipponicum Franch. ex Maxim | Nippon daisy or Nippon-chrysanthemum. |
(3) Cut flowers of any species listed in paragraph (d)(1) of this section may be imported into the United States from any region listed in paragraph (d)(2) of this section only under the following conditions:
(f) Refusal of entry. If an inspector finds that imported cut flowers are so infested with a plant pest or infected with disease that, in the judgment of the inspector, they cannot be cleaned or treated, or if they contain soil or other prohibited contaminants, the entire lot may be refused entry into the United States.
(Approved by the Office of Management and Budget under control number 0579-0271)
[64 FR 38110, July 15, 1999, as amended at 71 FR 4464, Jan. 27, 2006; 72 FR 15811, Apr. 3, 2007; 75 FR 4253, Jan. 26, 2010]