To ensure adequate control, soil should be cultivated to a depth of 15 centimetres and sown with competitive crops or pasture to reduce serrated tussock regrowth. Cultivation is suitable before establishing pasture or cropping, and for heavy to light infestations.
Cultivation should be undertaken before flowering and in dry conditions, encouraging the plants to dry out to reduce the risk of re-establishment.
Pros and cons
Cultivation is useful when preparing land for cropping and pasture renovation. However, it disturbs soil which can encourage serrated tussock seedlings to germinate. Cultivation may not control mature plants if conditions are too wet. Without adequate hygiene measures soil disturbance can increase the spread of serrated tussock.
Establish competitive ground cover or conduct broadacre spraying to control seedlings.
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