Non chemical methods of controling serrated tussock
Integrated weed management using a variety of control methods is critical for the long term success of your serrated tussock program.
The following non-chemical control techniques can all play a role in controling serrated tussock, the level to which will depend on your particular circumstances. The most successful programs use a variety of control methods and are well planned. Remember to consult your agronomist or Weeds Officer to determine the best plan for you.
Also remember approaching weed control as part of your whole farm management and in conjunction with neighbours, landcare groups and natural resource groups such as Catchment Management Authorities is an important part of getting ahead.
Manual removalChipping or hoeing physically removes the serrated tussock plant from the ground. It is a great method wher infestation are scattered or light. Once removed shake soil from the roots to remove any remaining soil exposing the roots and allowing them to dry out. If the plant is in flower, bag the whole plant, remove it from the paddock and burrn it. Remember follow up treatments to remove any regrowth. |
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Grazing managementGood grazing management is necessary to maintain pasture coverand density to effectively compete with serrated tussock. Grazing management alone will not eradicate your tussock but it is essential in the integrate management of serrated tussock. Always monitor pastures for serrated tussock seedlings and follow up with spot spraying or chipping. Research has shown that the type of animals grazed is not of concern; the importance is managing the pasture and ground cover. Rotational grazing is a tool that will help achieve a highly productive and competitive pasture. Focus management on continually improving the quality of pasture by promoting the growth of desirable species that will minimise serrated tussock invasion. |
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Cropping/cultivationCultivation on its own is a short term method to control serrated tussock and reduce the seed bank on arable land. For long term control, sow cultivated areas to vigorous pastures. Always monitor pastures for serrated tussock seedlings and follow up with spot spraying or chipping. |
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FireOnly use fire in combination with other methods. A hot serrated tussock fire will not kill adult plants, but it will remove the biomass and destroy about 25% of the serrated tussock seed bank. Burnt serrated tussock plants may regrow and the fire stimulates the mass germination of serrated tussock seeds. Always carry out a vigorous follow up control program to remove seedlings. |
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MulchingMulching prevents weed growth by smothering all vegetation. material such as straw, wood chippings, plastic sheeting or carpet can be used. To be effective, re-vegetate desirable species into the mulch layer. Mulching is suitable for light or isolated infestations in urban areas, organic farming situations or where infestations are in environmental areas where rehabilitation is needed.
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