Some of herbicides, in particular, an application of Dual Magnum, a pre- emergence herbicide, into the soil at the rate of 2.2litres/ha before planting maize is effective in suppressing witch weed. At this rate Dual Magnum controls weeds and suppresses the emergence of witch weed.
Mankhwala ena ophera tchire, makamaka kuthira Dual Magnum, mankhwala othira mbewu zisanamere, mu dothi pa mulingo wa 2.2L pa hectare mbewu zisanabzalidwe amagwira bwino ntchito kupha kaufiti. Pa mulingo umenewu, Dual Magnum amathana ndi tchire komanso amafooketsa kumera kwa kaufiti