Redvine Brunnichia ovata (Walt.) Shinners is a perennial weed that reproduces from seed, rootstock, and rhizomes. Redvine infested areas that were exposed to different tillage practices, slicing techniques, and herbicide treatments were selected to excavate in order to observe rhizome and root morphology. When comparing tillage systems, deep tillage appeared to delay rhizome development following cultivation, but a characteristic branching occurred over time. Shallow cultivation (2.5 to 7.5m) concentrated rhizomes immediately below the depth of tillage; whereas, no-till areas concentrated rhizomes near the soil surface. Slicing the underground parts of redvine will not kill rhizomes if they are still attached to a live portion of the taproot. The same holds true for freezing and drying. Dicamba and glyphosate reduced the density of redvine rhizomes, but neither provided control of the entire underground plant structure. Nomenclature: dicamba, 3,6-dichloro-2-methoxybenzoic acid; glyphosate, N- (phosphonomethyl) glycine; redvine, (Brunnichia ovata (Walt.) Shinners) # BRVCI. Additional index words: Differential infestation, sensor applicator, dicamba, glyphosate, Glycine max.
Gordon, E. C.; Keisling, T. C.; Oliver, L. R.; and Castillo, T. A.
"Effect of Tillage and Herbicide Treatments on Redvine (Brunnichia ovata) Subterranean Morphology,"
Journal of the Arkansas Academy of Science: Vol. 56
, Article 12.
Available at: http://scholarworks.uark.edu/jaas/vol56/iss1/12