Chemical control of curled dock (Rumex crispus L.) and other weeds in noncropped areas
2008
Dimitrova, T., Institute of Forage Crops, Pleven (Bulgaria) | Marinov-Serafimov, P., Institute of Forage Crops, Pavlikeni (Bulgaria)
With the purpose of studying the possibility of chemical weed control in noncropped areas with heavy natural background infestation with Rumes crispus L. and other dicotyledonous weeds, two field trials were carried out. A ready-to-use herbicide mixture 2,4-D 140.2 g/lE-1 + Triclopyr 144 g/lE-1, trade product Genoxon 3X (X0050), was tested at two doses of active ingredient, 352 and 2842 ml/haE-1. It was found that population density of Rumex crispus L. in non-cropped areas can be successfully reduced by treatment at the stage of early stem formation; herbicidal efficacy was lower when Rumex crispus L. was treated at the 5-6 leaf stage; at the studied doses the herbicide controlled both annual dicotyledones weeds and perennial dicotyledonous ones, but it was not toxic to monocotyledonous weeds.
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