Witchweed quarantines
Edition: Slightly rev. Aug. 1991.
Publisher: U.S. Dept. of Agriculture, Animal and Plant Health Inspection Service
Published: 1991
Place of publication: [Beltsville, Md.?]
Language: eng
Subjects: Witchweed; Plant quarantine
Notes: Caption title.

"Plant protection and quarantine cooperating with affected states"--P. [1].