Tordon for the control of field bindweed and Canada thistle in the North Central United States
Warden, R.L.
Down to Earth 20(2): 6-10
1964
ISSN/ISBN: 0012-5792
Accession: 014783816
Tordon (4-amino-3,5,6,-trichloropicolinic acid) used at the rate of 2 lb./acre has given almost complete control of Canada thistle and at the rate of 3 lb./acre of field bindweed in trials in the North Central states. Treatment may be made more or less independent of season or stage of growth of the weeds and control remains reasonably effective for 2 years. Little injury is shown by cereal crops the year following treatment.