Browsing Extension Service -- Pacific Northwest Extension Publishing by Subject "Livestock poisoning plants -- Control -- West (U.S.)"

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Tansy ragwort : a poisonous weed

Oregon State University. Cooperative Extension Service; Washington State University. Extension Service; University of Idaho. Agricultural Extension Service; Burr, Ronald J., 1945- ([Covallis, Or.] : Cooperative Extension Service, Oregon State University, Washington State University Extension Service, University of Idaho Agricultural Extension Service and the U.S. Dept. of Agriculture, 1972-05)