B.E.P.Q. 577, Revised 
 
 Effective April 22, I95O 
 
 UNITED STATES DEPARTMENT OF AGRICULTURE 
 
 AGRICULTURAL RESEARCH AIMINISTRATION 
 
 BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE 
 
 DOMESTIC QUARANTINE NOTICES 
 
 AIMINISTRATIVE INSTRUCTIONS DESIGNATING RUST -RESISTANT 
 SPECIES AND VARIETIES OF BARBERRY AND MAHONIA PLANTS 
 
 Pursuant to the authority conferred on the Chief of the Bureau of Entomology 
 and Plant Quarantine by | 301.38-5 of the regulations supplemental to Black Stem 
 Rust Quarantine No. 38 (7 CFR 301.38-5, 1^ F.R. 1001), the following administra- 
 tive instructions are hereby issued to designate the rust -resistant species and 
 horticultural varieties of barberries and mahonias (1) the plant's of which may be 
 moved interstate in compliance with the regulations in this subpart, and "(2) the 
 seeds and fruits of which, if produced in any of the States of Colorado, Illinois, 
 Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Montana, Nebraska, North 
 Dakota, Ohio, Pennsylvania, South Dakota, Virginia, Washington, West Virginia, 
 Wisconsin, and Wyoming, may be moved between such States only under permit or, 
 wherever produced, may be moved from the States named to points outside thereof, 
 and between States other than those named, without restriction. 
 
 301.38-5a Administrative instructions designating rust -resistant barberry 
 and mahonia plants . The following species and horticultural varieties of bar- 
 berries and mahonia are hereby designated as rust -resistant : 
 
 Scientific Name 
 
 Berber is arido-calida 
 
 B. beaniana 
 
 B. buxifolia 
 
 B. buxif olia nana 
 
 B. caliiantha 
 
 B. candidula 
 
 B. chenaulti 
 
 B. circumserrata 
 
 B. concinna 
 
 B. darwini 
 
 B. formosana 
 
 B. franc he tiana 
 
 B. gagnepaini 
 
 B. gilgiana 
 
 B. horvathi 
 
 B. hybrido-gagnepaini 
 
 B. julianae 
 
 B. koreana 
 
 B. linearifolia var. Orange King 
 
 B. mentorensis 
 
 B. pa liens 
 
 B. potanini 
 
 B. replicata 
 
 B. sanguinea 
 
 B. sar gen tiana 
 
 B_. stenophylla 
 
 B. stenophylla diversifolia 
 
 B\ stenophylla irwini 
 
 B. stenophylla nana compacta 
 
 B. telomaica artisepala 
 
 B. thunbergi DC. 
 
 Common Name 
 
 Bean's Barberry 
 Magellan Barberry 
 Dwarf Magellan Barberry 
 
 pale leaf Barberry 
 Chenault Barberry 
 Cut leaf Barberry 
 Dainty Barberry 
 Darwin Barberry 
 
 Black Barberry 
 Wildfire Barberry 
 
 False Black Barberry 
 Wintergreen Barberry 
 Korean Barberry 
 Jasper be lis Barberry 
 Mentor Barberry 
 Pallid Barberry 
 Longspine Barberry 
 Curlleaf Barberry 
 Red-pedicel Barberry 
 Sargent Barberry 
 Rosemary Barberry 
 
 Irwin Barberry 
 Corallina Barberry 
 
 Japanese Barberry 
 
B. 
 
 thunbergi atropurpurea 
 
 B. 
 
 thunbergi atropurpurea nana 
 
 B. 
 
 thunbergi e recta 
 
 B. 
 
 thunbergi "globe" 
 
 B. 
 
 thunbergi "golden" 
 
 B. 
 
 thunbergi maximowiczi 
 
 B. 
 
 thunbergi minor 
 
 B. 
 
 thunbergi pluriflora 
 
 B. 
 
 thunbergi "thornless" 
 
 B. 
 
 thunbergi "variegata" 
 
 B. 
 
 triacanthophora. 
 
 B. verruculosa 
 B. virgatorum 
 Mahonia aquif olium 
 
 M. 
 
 M. 
 M. 
 M. 
 M. 
 M. 
 M. 
 
 bealei 
 
 compacta 
 
 dictyota 
 
 fortune! 
 
 nervosa 
 
 pinna ta 
 
 repens 
 
 Redleaf Japanese Barberry- 
 True hedge Columnberry 
 
 Coral Japanese Barberry- 
 Box Barberry- 
 Flame Barberry- 
 
 Three spine Barberry- 
 Warty Barberry 
 
 Oregongrape Mahonia 
 Leather leaf Mahonia 
 
 Net vein Mahonia 
 Chinese Mahonia 
 Cascades Mahonia 
 Cluster Mahonia 
 Creeping Mahonia 
 
 (Sec. 8, 37 Stat. 3^8, as amended; 7 U. S. C l6l) 
 
 These instructions shall become effective on April 22, 1950.. when they shall 
 supersede B. E. P. Q. 577, effective May 1, 19^9 (7 CFR 301.38-5&, V* F. R. 1866). 
 
 The Chief of the Bureau of Entomology and Plant Quarantine is authorized and 
 directed in § 301. 38-5 to designate, in administrative instructions, the species 
 and varieties within the genera Berberis , Mahonia , and Mahoberberis that, on the 
 basis of evidence satisfactory to him, are determined to be resistant to black stem 
 rust. The determination of such rust-rosistant species and varieties in effect 
 constitutes a relaxation of the restrictions of the regulations and depends to a 
 considerable extent upon facts within the knowledge of the United States Departmei 
 of Agriculture. It has been determined that there is no unwarranted pest risk in) 
 volved in the permitted movement of such species and varieties. The period when 
 nurseries are inspected to determine whether they are free of rust-susceptible 
 varieties is now at hand. 
 
 The above designation of rust -resistant species and horticultural varieties 
 adds 13 species or horticultural varieties which have recently been tested and 
 found immune or resistant to black stem rust. 
 
 It having been determined that these species and varieties comprise those that 
 are rust -resistant, authorization for their shipment in accordance with the regu- 
 lations in the subpart should be accomplished promptly. Accordingly, it is found 
 under section k of the Administrative Procedure Act (5 U. S. C. 1003) , upon good 
 cause, that notice and public procedure concerning these administrative instruction! 
 are impracticable and unnecessary, and it is found under said section that good 
 cause exists for issuing this amendment effective less than 30 days after its 
 publication. 
 
 Done at Washington, D. C . , this 7th day of April 1950. 
 
 Acting Chief, Bureau of Entomology and Plant Quarantine