- Couch Grass Killer



The CMN couch grass killer, your optimum solution for the uprooting of root weeds like couch grass, dock, thistle, and other root weeds. Tufts of grass can be effectively crushed when reallocating old meadows and seed fields. The CMN couch grass killer cuts through the field by means of the tines of the strong stubble harrow, which is equipped with 48 cm wide wing shares. The earth has now been loosened up for a slow-moving pickup that rotates against the direction of motion. By churning up the soil, the pickup gathers organic material, such as roots of couch grass, thistle, mugwort etc, and exposes it. The combination of the low speed of the pickup and the high volume weight of the soil ensures that soil and stones pass under the pickup, whereas the organic material will be dragged over the pickup and left on the soil for drying or collection.

The couch grass problem

Couch grass is a greedy plant that competes with crops for light, water and nutrients and it is capable of reducing the crop yield by 30-50%. The table below shows the reduction of spring barley yield due to couch grass. Source: Landscentret planteavl, Denmark.

Mechanical control of couch grass requires that the roots are brought to the surface in order to dry out or freeze.

Destruction of root weeds at high soil temperature entails the risk of nitrogen leaching, since there will be no plants to absorb the amounts released. Therefore it is recommended to carry out couch grass control  in late autumn or early spring, before establishing new crops.

CMN couch grass killer with seed sower

If you would like additional safeguards against weeds it is possible to have your couch grass killer fitted with sowing equipment so that the same machine can be used for controlling root weeds and establishing new crops.

Regardless of whether or not you would like to plow the soil, the advantages are as follows:

Next year’s root weed problems are located 5 – 7 cm down in the upper soil. When using the combined CMN couch grass killer with sowing machine, couch grass that has not been plowed under will be exposed and dry out.

With CMN couch grass killer you can achieve effective root weed control and, subsequently, you are not dependent on long periods of dry weather.

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