A survey of the use of flupropanate in New South Wales for the control of serrated tussock (Nassella trichotoma (Nees) Arech.)
C.C. Lee and G.M. Gurr, Orange Agricultural College, The University of Sydney, Orange, New South Wales 2800, Australia.
Summary
Flupropanate (sodium 2,2,3,3-tetrafluoropropionate) has been used in efforts to control serrated tussock (Nassella trichotoma), a major pasture weed in Australia. However, this product has been withdrawn from sale in Australia. This study presents results from a postal survey to determine the degree of reliance of landholders on this herbicide in New South Wales. Of 71 questionnaires returned, 45 were from landholders who reported infestations of N. trichotoma. Amongst affected landholders, 34 used flupropanate and this was the sole reported control method used by 18 respondents. Users tended to view this herbicide as a reliable, easy to use method which gave a high level of control and so justified the significant costs of purchase and application. The majority viewed it as constituting a low or no hazard to the operator, family, consumer and environment. Other herbicides and non-chemical methods (physical and pasture improvement) were used by small numbers of growers. Of the 37 growers who commented on the possible removal of flupropanate, 35 favoured its retention on the market.
Plant Protection Quarterly (1999) 14 (3) 86-87.