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Kings Park Soil Survey, J A. Bessell-Browne
Kings Park Soil Survey, J A. Bessell-Browne
Resource management technical reports
No abstract provided.
The Demography Of Doublegee. Ecological Studies On Arum Lily., F. D. Panetta
The Demography Of Doublegee. Ecological Studies On Arum Lily., F. D. Panetta
Experimental Summaries - Plant Research
3.1 Growth of doublegees under summer irrigation. (87A40)
The weevil, Perapion antiquum is a potential biological control agent of doublegee. However, it exhibits large population crashes during the summer months in the summer-dry areas of the Western Caped of South Africa, where it is native. It has been suggested that one means of successfully establishing Perapion in Western Australia could be to maintain populations in 'oases' over the summer months. The aim of this experiment was to determine how readily doublegee could be maintained in a non-senescent phase under irrigated and shaded conditions.
3.2 Doublegee demography in cereal crops (87GE30) …
1974 The Ecology And Control Of Doublegee (Emex Australis) And Emex Spinosa, D J. Gilbey
1974 The Ecology And Control Of Doublegee (Emex Australis) And Emex Spinosa, D J. Gilbey
Experimental Summaries - Plant Research
The objectives of the field experimental programme for 1974 were to - 1) Evaluate a technique to measure pasture loss as a result of doublegee infestation at Merredin, Wongan.Hills and Chapman. 2) Evaluate the effect of cultural and herbicide treatment combinations on the magnitude and distribution of viable doublegee seeds in the soil at Avondale, Merredin, Wongan Hills and Chapman. 3) Measure the magnitude and distribution of viable doublegee seeds in the soil from paddocks representing each year of a two crop, plus three year pastureley rotation at Avondale, Merredin, Wongan Hills and Chapman. 4) Screen herbicides for selective control …