301.38 BLACK STEM RUST

Federal Domestic Quarantine

A. Pest. Black Stem Rust, Puccinia graminis.

B. Regulated Areas.
Quarantine Area.
The coterminous 48 states and the District of Columbia.

2. Protected Areas. Areas (state or county) designated by USDA that have eradicated rust-susceptible plants of the genera Berberis, Mahoberberis, and Mahonia under the cooperative federal-state eradication program. In addition, the state/county must employ personnel with responsibility for certificates for the interstate movement of regulated articles, and maintain and enforce an inspection program under which every plant nursery within the state/county is inspected at least once each year to ensure that they are free of rust-susceptible plants.

a. The states of Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Montana, Nebraska, North Dakota, Ohio, Pennsylvania, South Dakota, West Virginia, Wisconsin, and Wyoming.

b. The following counties in the State of Washington: Adams, Asotin, Benton, Chelan, Columbia, Douglas, Ferry, Franklin, Garfield, Grant, Kittitas, Klickitat, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, Walla Walla, Whitman, Yakima.

C. Regulated Articles. Berberis, Mahoberberis, and Mahonia plants, including seedlings, seeds, fruits, and other plant parts capable of propagation.

1. All seed used to propagate plants of the generaBerberis, Mahoberberis, and Mahonia in protected areas, and all seed used to propagate plants of the genera Berberis, Mahoberberis, and Mahonia that are certified as rust-resistant for interstate movement into protected areas, must be produced at properties where a state inspector has verified that no wild or domesticated rust-susceptible plants are growing at or within one-half mile of the property.**

D Restrictions.

1. Prohibited Movement. The following regulated articles are prohibited from moving interstate into or through any protected area:

a. All Berberis seedlings and plants of less than 2 years' growth, and rust-susceptible Berberis plants, seeds, fruits and other plant parts capable of propagation.

b. Rust-susceptible Mahoberberis and Mahonia plants, seedlings, seeds, fruits, and other plant parts capable of propagation.

2. Restricted Movement: The following regulated articles may be moved interstate into or through a protected area with a certificate issued and attached.

a. Plants of at least 2 years' growth, seeds, fruits, and other plant parts capable of propagation of the genus Berberis that are designated as rust-resistant.

b. Plants, seedlings, seeds, fruits, and other plant parts capable of propagation of the genera Mahoberberis and Mahonia that are designated as rust-resistant.

Notes: Certification is not required for California destinations. The regulations require plants certified as resistant to black stem rust must be True to Type. For the purposes of this regulation, True to Type means "all plants in a shipment have the same vegetative characteristics. There is no evidence of hybridization on plants with at least 2 years growth in the genus Berberis. There is no evidence of hybridization on plants with 1 years growth in the genera Mahonia and Mahoberberis."

E. Rust-resistant Berberis, Mahoberberis and Mahonia Plants.

The following species and horticultural varieties of Berberis, Mahoberberis, and Mahonia have been determined to be black stem rust-resistant:

SCIENTIFIC NAME

Berberis aggregata x B. wilsoniae ‘Pirate King’

B. ‘Amstelveen’

B. aridocalida *

B. beaniana *

B. buxifolia

B. buxifolia nana

B. calliantha *

B. candidula

B. candidula ‘Amstelveen’

B. candidula x B. verruculosa ‘Amstelveen’

B. cavallieri

B. chenaulti

B. chenaulti, "Apricot Queen"

B. circumserrata *

B. concinna *

B. coxii *

B. darwini

B. dasystachya *

B. dubia *

B. feddeana

B. formosana *

B. franchetiana *

B. gagnepaini *

B. gagnepaini ‘Chenault’

B. gilgiana *

B. gladwynensis *

B. gladwynensis ‘William Penn’

B. gyaliaca *

B. heterophylla *

B. horvathi *

B. hybrido‑gagnepaini *

B. insignis

B. integerrima ‘Wallichs Purple’

B. julianae

B. julianae, "Nana"

B. julianae, "Spring Glory"

B. koreana *

B. koreana x B. thunbergii hybrid Bailsel

B. koreana x B. thunbergii hybrid Tara

B. lempergiana *

B. lepidifolia *

B. linearifolia

B. linearifolia var. Orange King

B. lologensis

B. lologensis ‘Mystery Fire’

B. manipurana *

B. media ‘Dual Jewel’

B. media ‘Park Jewel’

B. media "Red Jewel"

B. mentorensis *

B. pallens *

B. poirettii ‘BJG 073’, ‘MTA’

B. potanini

B. renton

B. replicata

B. sanguinea

B. sargentiana

B. sikkimensis *

B. soulieana ‘Claret Cascade’

B. stenophylla

B. stenophylla diversifolia

B. stenophylla gracilis

B. stenophylla irwini

B. stenophylla nana compacta

B. taliensis

B. telomaica artisepala *

B. thunbergii *

B. thunbergii ‘24kagozan’

B. thunbergii ‘Ada’

B. thunbergii ‘Amera’

B. thunbergii ‘Antares’

B. thunbergii argenteo marginata *

B. thunbergii ‘Arlene’

B. thunbergii atropurpurea *

B. thunbergii atropurpurea erecta *

B. thunbergii atropurpurea erecta marshalli *

B. thunbergii atropurpurea, "Golden Ring"*

B. thunbergii atropurpurea ‘Intermedia’

B. thunbergii atropurpurea, "Knight Burgundy"*

B. thunbergii atropurpurea ‘Moretti Select’

B. thunbergii atropurpurea nana *

B. thunbergii atropurpurea, "Redbird"*

B. thunbergii atropurpurea, "Rosy Glow"*

B. thunbergii aurea *

B. thunbergii ‘Aurea Nana’

B. thunbergii, "Bagatelle"

B. thunbergii ‘Bailgreen’ (Jade Carousel^TM)

B. thunbergii, "Bailone"*

B. thunbergii ‘Bailone’ (Ruby Carousel^®)

B. thunbergii, "Bailtwo"*

B. thunbergii ‘Bailtwo’ (Burgandy Carousel^®)

B. thunbergii, ‘Benita’

B. thunbergii, "Bonanza Gold"

B. thunbergii, ‘Breval 8’

B. thunbergii, ‘Celeste’

B. thunbergii, ‘Chloe’

B. thunbergii ‘Concorde’

B. thunbergii ‘Crimson Pygmy’

B. thunbergii ‘Criruzam’ Crimson Ruby^™

B. thunbergii ^‘ Della’

B. thunbergii, "Dwarf Jewell"*

B. thunbergii, ‘Edda’

B. thunbergii erecta *

B. thunbergii, ‘Fay’

B. thunbergii ‘Fireball’

B. thunbergii, ‘Gail’

B. thunbergii, "Globe"*

B. thunbergii, "Golden"*

B. thunbergii ‘Golden Pygmy’

B. thunbergii ‘Golden Torch’

B. thunbergii ‘Green Carpet’

B. thunbergii ‘Grhozam’

B. thunbergii, "Harlequin"*

B. thunbergii ‘Helen’

B. thunbergii, "Helmond Pillar"*

B. thunbergii, "Kabold"*

B. thunbergii ‘Joyce’

B. thunbergii ‘Kasia’

B. thunbergii ‘Koren’

B. thunbergii ‘Lime Glow’

B. thunbergii ‘Lotty’

B. thunbergii ‘Lustre green’

B. thunbergii ‘Martha’

B. thunbergii maximowiczi *

B. thunbergii ‘Midruzam’ Midnight Ruby^™

B. thunbergii ‘Mimi’

B. thunbergii minor *

B. thunbergii ‘Monlers’

B. thunbergii, "Monomb"*

B. thunbergii ‘Monry’

B. thunbergii ‘O’ Byrne’

B. thunbergii ‘Orange Rocket’

B. thunbergii ‘Painter’s Palette’

B. thunbergii, "Pink Queen"*

B. thunbergii pluriflora *

B. thunbergii ‘Phoebe’

B. thunbergii ‘Pyruzam’

B. thunbergii ‘Royal Burgandy’

B. thunbergii ‘Royal Cloak’

B. thunbergii ‘Ruth’

B. thunbergii, "Sparkle"*

B. thunbergii ‘Sparkler’

B. thunbergii, "Thornless"*

B. thunbergii, "Upright Jewell"*

B. thunbergii, "Variegata"*

B. thungergii ‘Velglozam’

B. thunbergii xanthocarpa

B. thunbergii x ‘Bailsel’ (Golden Carousel^®)

B. thunbergii x ‘Tara’ (Emerald Carousel^®)

B. triacanthophora

B. triculosa

B. verrusulosa *

B. virgatorum *

B. workingensis *

B. xanthoxylon

B. x carminea ‘Pirate King’

B. x frikartii ‘Amstelveen’

Mahoberberis aqui‑candidula

M. aquifolium ‘Smaragd’

M. aqui‑sargntiae

M. miethkeana

M. x ‘Magic’

Mahonia amplectens

M. aquifolium

M. aquifolium atropurpurea

M. aquifolium compacta

M. aquifolium compacta, ‘John Muir’

M. aquifolium, "Donewell"

M. aquifolium, "Kings Ranson"

M. aquifolium, "Orangee Flame"

M. aquifolium ‘Undulata’

M. aquifolium, "Winter Sun"

M. "Arthur Menzies"

M. bealei

M. ‘Bokasio’ Sioux

M. ‘Bokrafoot’ Blackfoot

M. dictyota

M. fortunei

M. "Golden Abundance"

M. japonica

M. japonica x M. lomariifolia ‘Charity’

M. lomarifolia

M. nervosa

M. pinnata

M. pinnata, "Ken Hartman"

M. piperiana

M. pumila

M. repens *

M. x media ‘Charity’

M. x media ‘Lionel Fortescue’

M. x media ‘Winter Sun’