Herbicidal Control of Western Ironweed
- 1 January 1969
- journal article
- research article
- Published by Cambridge University Press (CUP) in Weed Science
- Vol. 17 (1) , 77-79
- https://doi.org/10.1017/s0043174500030940
Abstract
Applications of 2-methoxy-3,6-dichlorobenzoic acid (dicamba) and 2,4-dichlorophenoxyacetic acid (2,4-D) controlled top growth the year of treatment, but western ironweed (Vernonia baldwini Torr.) recovered in the following year. One-half lb/A or more of 4-amino-3,5,6-trichloropicolinic acid (picloram) effectively controlled top growth and destroyed roots and rhizomes. Treatment with 2 lb/A of picloram resulted in ironweed-free plots by the fourth season after treatment.Keywords
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