Black stem rust quarantine (Quarantine No. 38)
Subtitle: administrative instructions designating rust-resistant species and varieties of barberry, mahonia, and mahoberberis
Series: B.E.P.Q -- 577; B.E.P.Q. (Series) -- 577.
Publisher: United States Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine
Published: 1949
Place of publication: Washington, D.C
Language: eng
Subjects: Control; Plant quarantine; Barberries; Law and legislation; Mahonia; Puccinia graminis; Diseases and pests
Other titles: Administrative instructions designating rust-resistant species and varieties of barberry, mahonia, and mahoberberis; Domestic quarantine notices
Notes: Caption title.

"Effective May 1, 1949."

Signed Avery S. Hoyt, Acting Chief, Bureau of Entomology and Plant Quarantine.

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