Distribution of Ventenata dubia in Idaho
Old, R.R, Callihan, R.H
Published in Research progress report - Western Society of Weed Science (1987)
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Published in Research progress report - Western Society of Weed Science (1987)
Journal Article
Loran-C feasibility for pest survey
Old, R.R, Callihan, R.H
Published in Research progress report - Western Society of Weed Science (1986)
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Published in Research progress report - Western Society of Weed Science (1986)
Journal Article
Sulfur cinquefoil (Potentilla recta L.)
Callihan R.H, Old R.R, Burnworth R.S
Published in PNW - Pacific Northwest Extension Publication (1991)
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Published in PNW - Pacific Northwest Extension Publication (1991)
Journal Article
University of Idaho weed identification
Old, R.R, Callihan, R.H, Thill, D.C
Published in Research progress report - Western Society of Weed Science (1986)
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Published in Research progress report - Western Society of Weed Science (1986)
Journal Article
New weed species and potential weed problems in Idaho
Old, R.R, Northam, F.E, Callihan, R.H, Thill, D.C
Published in Research progress report - Western Society of Weed Science (1988)
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Published in Research progress report - Western Society of Weed Science (1988)
Journal Article
New weed species and potential weed problems in Idaho
Old, R.R, Northam, F.E, Callihan, R.H, Thill, D.C
Published in Research progress report - Western Society of Weed Science (1987)
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Published in Research progress report - Western Society of Weed Science (1987)
Journal Article
University of Idaho weed identification
Old, R.R, Callihan, R.H, Northam, F.E, Thill, D.C
Published in Research progress report - Western Society of Weed Science (1987)
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Published in Research progress report - Western Society of Weed Science (1987)
Journal Article
Lepyrodiclis: (Lepyrodiclis holosteoides (C.A. Meyer) Fenzl ex Fisch. & Mey.)
Roche, C.T, Old, R.R, Callihan, R.H, Boerboom, C
Published in PNW - Pacific Northwest Extension Publication, Washington, Oregon, and Idaho State Universities, Cooperative Extension Service (01.04.1990)
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Published in PNW - Pacific Northwest Extension Publication, Washington, Oregon, and Idaho State Universities, Cooperative Extension Service (01.04.1990)
Journal Article