Herbicide responses of blackberry (Rubus fruticosus L. agg.) in Central Tablelands of New South Wales

B.R. Milne and J.J. Dellow, NSW Agriculture, Orange Agricultural Institute, Forest Road Orange, New South Wales 2800, Australia.


Herbicide trials for blackberry (Rubus fruticosus L. agg.) control have been conducted in the Central Tablelands of New South Wales from 1979 to 1985. Apart from selecting the most efficacious herbicide for both site and condition, the trials demonstrated how herbicide efficacy depends on the plants' growing condition, prevailing seasonal conditions and time of season of application. The range of herbicides currently registered for blackberry can provide a high degree of control.

Trials conducted in both the Central and Northern Tablelands during droughts and adverse seasonal conditions provide poor results, even with the most efficacious herbicides. Results of a series of trials confirmed anecdotal evidence that autumn herbicide applications provided control results superior to those when applied in summer. There is also some anecdotal evidence of a species response to herbicide treatment. Blackberry management can be a long-term program and herbicides should be considered one aspect of an integrated strategy. Herbicides should be integrated with competitive pastures, biological control agents and grazing livestock including sheep and goats.


Plant Protection Quarterly (1998) 13 (4) 180-181.