Introduction
Activity 20
Match the excerpts from an Introduction (a-e) with the following descriptions.
Click 1-5 for the correct answer.
| A | Therefore, one of the main challenges is to develop Integrated Weed Management (IWM) systems that limit weed infestations with a low reliance on herbicides, preferably without side effects on the productivity and the overall system economic performance. |
|---|---|
| B | In Western Europe, weed management on conventional farms is primarily accomplished through the use of herbicides. |
| C | The objective was to assess whether or not any of the combinations of IWM principles tested in the cropping systems would be efficient enough to control weeds in the long term. |
| D | However, the use of herbicides as the sole weed management tool is seriously being questioned by farmers because of herbicide costs and technical problems related to resistance of weed populations to one or several herbicides (Richeter et al., 2002; Mace et al., 2007). |
| E | This paper reports on a cropping system experiment that was set up to evaluate the efficiency of IWM principles. |
