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Biological Control Of Doublegee, Dane Panetta
Biological Control Of Doublegee, Dane Panetta
Journal of the Department of Agriculture, Western Australia, Series 4
Doublegee (Emex australis) is one of the worst agricultural weeds in Western Australia. To date, however, biological control of this weed has proved elusive. Multiple releases of two weevils which attack doublegee have not led to insect establishment. For one of these species, further research has shown that doublegee control would probably not be achieved in the wheatbelt even if insect establishment were enhanced by growing its host during the summer months. A joint Western Australian Department of Agriculture/ CSIRO project is investigating the virulence and host specificity of an undescribed South African species o/Phomopsis fungus. Should this pathogen prove …
The Doublegee Problem In Western Australia, D J. Gilbey
The Doublegee Problem In Western Australia, D J. Gilbey
Journal of the Department of Agriculture, Western Australia, Series 4
Doublegee is native to South Africa and is now naturalised as a serious weed of crops and pastures throughout the temperate areas of Australia.
Doublegee was introduced for cultivation as a vegetable by English migrants to the Swan River Colony in 1830, and a bed of doublegees is known to have been sown at Mr. J. Phillips' property on the Canning River in 1833. However, the plant soon became a troublesome weed and its name was changed from Cape spinach to Tanner's curse and later to doublegee.
More than 180 doublegee seedlings per square metre have been counted in a …
The Control Of Doublegee, Geoffrey A. Pearce
The Control Of Doublegee, Geoffrey A. Pearce
Journal of the Department of Agriculture, Western Australia, Series 4
FOUR years ago no practical recommendations could be made for the control of doublegee.
With money provided by the State Wheat Research Fund, research has been undertaken into the control of this weed, and there is now no reason why most farmers cannot bring doublegee under control.
A Chemical For Doublegee, Geoffrey A. Pearce
A Chemical For Doublegee, Geoffrey A. Pearce
Journal of the Department of Agriculture, Western Australia, Series 4
DURING the past two years, finance has been made available from the State Wheat Research Fund for an intensive study on doublegee.
A newly-developed herbicide has been shown to give complete control of growing plants, while ecological studies have started to yield valuable information about seed behaviour.
The Doublegee, G R W Meadly
The Doublegee, G R W Meadly
Journal of the Department of Agriculture, Western Australia, Series 4
DOUBLEGEE, like a number of other major weeds, is native to South Africa. It was introduced to Western Australia during the first years of settlement.
There is no more troublesome weed in Western Australia than doublegee. It competes strongly with crop and pasture and its spiny fruits penetrate the hoofs of stock, causing lameness.