Section 26
Chapter 25,997

Tordon controls range brush in New Zealand and Australia

Ferguson, R.H.

Down Earth 21(3): 18-21


Accession: 025996213

Control of woody plants in grazing areas is a problem in most of the 31 million acres of grazing land in New Zealand and the 1081 million acres in Australia. Among the most troublesome species are: blackberry (Rubus fruticosus L.), gorse (Ulex europeus L.), sweet briar (Rosa rubing inosa L.) and several species of Eucalyptus. Tordon (4-amino-3, 5, 6-trichloropicolinic acid) alone, or preferably in combination with 2, 4-D or 2, 4, 5-T, using these materials at rates of 0.5 - 0.7 and 1.0 lb/acre, respectively, in 100 gal of water have given effective stem kill and growth suppression up to 10 months following application.

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