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Full-Text Articles in Life Sciences
Research On Declared Plants And Other Weeds, G. A. Pearce
Research On Declared Plants And Other Weeds, G. A. Pearce
Journal of the Department of Agriculture, Western Australia, Series 4
Knowledge about weeds is necessary to assess their significance, devise control measures and to select those which are to be declared for the purposes of the Agricultural and Related Resources Protection Act.
Once a plant has been declared in Western Australia, all landowners must control and prevent its spread to new areas and work towards eradicating known infestations. The Act also declares plants which are prohibited from entering the State.
It is becoming more and more important to provide specific reasons for the declaration of a weed and its placement in a certain category. Such decisions require appropriate action to …
Skeleton Weed : How Serious A Threat In Western Australia?, F D. Panetta, J. Dodd
Skeleton Weed : How Serious A Threat In Western Australia?, F D. Panetta, J. Dodd
Journal of the Department of Agriculture, Western Australia, Series 4
Skeleton weed is probably the most serious weed ever to threaten the Australian wheat industry. It interferes with wheat cropping at two stages: through competition with the growing crop, particularly for nitrogen and water during the crop's development: and later through the production of a tall, wiry flowering stem which tangles in harvesting machinery and can make harvesting difficult, if not impossible.
The weed is a major problem in eastern Australia although a combination of cultural, chemical and biological control programmes is helping to reduce its impact.
In Western Australia, skeleton weed is being contained mainly by eradication efforts. Weed …
A 'Natural Herbicide' Against Calotrope?, A H. Cheam
A 'Natural Herbicide' Against Calotrope?, A H. Cheam
Journal of the Department of Agriculture, Western Australia, Series 4
Buffel grass produces a chemical compound which is toxic to the growth of calotrope seedlings, a declared weed in Western Austrsalia north of the 26th parallel. This new discovery id highly significant in view of the increasing emphasis now placed on weed management as opposed to weed control and the desire to use fewer pesticides.