Original Articles

Chemical control of some broadleaved weeds which grow during winter in untilled maize lands

Published in: South African Journal of Plant and Soil
Volume 3, issue 4, 1986 , pages: 185–188
DOI: 10.1080/02571862.1986.10634219
Author(s): P., E.L. ThomasSummer Grain Sub-Centre,


Several experiments have been done at Cedara in attempts to control broadleaved weeds in unfilled lands during winter. A number of herbicide treatments were tested on Conyza spp., Coronopus didymus, Gnaphalium spp., Hypochoeris radicata, Oenothera rosea and Taraxacum officinale. Where moisture conservation is an objective, these weeds, which grow during the winter, must be controlled. The most promising herbicide mixtures or combinations tested include glyphosate, paraquat and/or 2,4-D together with appropriate wetting agents. For example, consistent broad-spectrum control has been achieved with an initial application of 2,4-D + wetting agent, followed 8–10 days later by paraquat + a wetting agent.

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