Evaluation of herbicides for control of summer-growing weeds on fallows in south-eastern Australia

1990 ◽  
Vol 30 (2) ◽  
pp. 271 ◽  
Author(s):  
AR Leys ◽  
RL Amor ◽  
AG Barnett ◽  
B Plater

Eighteen herbicides or herbicide tankmixes were evaluated over 3 years (1987-89) for their control of 11 important summer-growing weeds on fallows in southern New South Wales and the Wimmera area of Victoria. Each of the weeds was effectively controlled by at least 1 herbicide. The tank-mixes of glyphosate plus metsulfuron (270 + 4.2 g a.i./ha) and glyphosate plus 2,4-D ester (270 + 320 g a.i./ha) were the most effective treatments, each giving an average of 68% control of all species. Hogweed (Polygolzunz avicu1ar.e L.), prickly paddy melon (Cucumis myriocarpris Naudin), spear thistle [Cirsium vulgare (Savi) Ten.] and skeleton weed (Chondrilla juncea L.) were the species most tolerant of these 2 tank-mixes. When these species were exluded, glyphosate plus metsulfuron and glyphosate plus 2,4-D ester gave an average of 90 and 88% control, respectively, of the remaining species [common heliotrope, Heliotropiunz europaeum L.; camel melon, Citrullus larzatus (Thunb.) Matsum. and Nakai var. lanatus; prickly lettuce, Lactuca serriola L.; sowthistle, Sonchus spp.; clammy goosefoot, Chenopodium pumilio R.Br.; caltrop, Tribulus terrestris L.; stink grass, Eragrostis ciliatiensis (All.) E. Mosher]. Hogweed was most effectively controlled by 2,4-D amine plus dicamba (750 + 100 g a.i./ha) or 2,4-D ester (800 g a.i./ha); prickly paddy melon by 2,4-D amine plus triclopyr (750 + 96 g a.i./ha); spear thistle by 2,4-D amine plus dicamba (750 + 100 g a.i./ha) or glyphosate plus clopyralid (270 + 60 g a.i./ha); and skeleton weed by 2,4-D amine plus clopyralid (750 + 60 g a.i./ha). A pot experiment confirmed field observations that, as common heliotrope ages, glyphosate and glyphosate plus metsulfuron become less effective for its control.

1976 ◽  
Vol 24 (5) ◽  
pp. 663 ◽  
Author(s):  
JA Elix

Parmelia (subgen. Xanthoparmelia) barbatica, Parmelia (subgen. Xanthoparmelia) burmeisterii and Parmelia (subgen. Xanthoparmelia) pseudohypoleia are described as new from the Australian Capital Territory and New South Wales. The former two species are the first representatives of this subgenus to be described in which usnic acid, barbatic acid and 4-O-demethylbarbatic acid are the major secondary metabolites.


1994 ◽  
Vol 34 (7) ◽  
pp. 959 ◽  
Author(s):  
MAE Lattimore

Legume-based pastures have long been an integral part of rice growing in the southern New South Wales irrigation areas and still offer potential to improve the productivity, profitability, and sustainability of the temperate rice-cropping system.This paper reviews both historical and current aspects of pastures in temperate rice rotations in southern New South Wales and highlights the importance of pastures in sustaining this cropping system as environmental pressures increase. Topics discussed include pasture species and rotations, their role in improving soil fertility and sustainability, the value of pastures in weed control, and their management for maximum profitability.


1969 ◽  
Vol 17 (4) ◽  
pp. 665 ◽  
Author(s):  
PD Dwyer

In south-eastern Australia banding of M. schreibersii has been concentrated in four areas: north-eastern New South Wales, south-eastern New South Wales, south-eastern Victoria, and south-western Victoria and south-eastern South Australia. The present paper analyses 2083 reported movements. Only 17 of these are from one of the four areas to another with the longest movement being 810 miles. Biologically and geographically separate populations of M. schreibersii are recognized in both north-eastern and south-eastern New South Wales. Each population has its basis in dependence upon a specific nursery site which is used annually by nearly all adult females in that population. Boundaries of population ranges in New South Wales are considered to be prominent features of physiography (i.e. divides). Bats move between population ranges less often than they move within population ranges. This cannot be explained solely in terms of the distances separating roosts. Available movement records from Victoria and South Australia are consistent with the pattern described for New South Wales. Two biologically recognizable populations (i.e, different birth periods) occur in south-western Victoria and south-eastern South Australia but these may have overlapping ranges. Only one nursery colony of M. schreibersii is known from south-eastern Victoria. On present evidence it remains possible that the apparent integrity of the population associated with this nursery is merely a consequence of distance from other areas of banding activity. Detailed analyses of movements in bats may provide direct evidence as to the kinds of cues by which a given species navigates. Thus the physiographic basis described for population ranges in New South Wales is consistent with the view that M. schreibersii may orientate to waterways or divides or both. The probability that there are area differences in the subtlety or nature of navigational cues is implied by the different physiographic circumstances of south-western Victoria and south-eastern South Australia. It is suggested that knowledge of population range boundaries may aid planning of meaningful homing experiments.


2019 ◽  
Vol 40 (2) ◽  
pp. 251-255
Author(s):  
Renae Hockey ◽  
Lachlan Wilmott ◽  
Lachlan Hall ◽  
George Madani

The Eastern Pygmy-possum Cercartetus nanu s is a small arboreal marsupial in the family Burramyidae that is threatened in parts of its range. Considered a generalist omnivore, its diet is known to include invertebrates, seeds, nectar and pollen. Tree sap has never before been recorded as a part of the diet of C. nanus . Here, we report on two observations of C. nanus feeding on eucalypt sap in south-eastern New South Wales.


Author(s):  
Michael N Dawson

Two reciprocally monophyletic mitochondrial clades of the commercially valuable jellyfish Catostylus mosaicus are endemic to south-eastern Australia. Here, medusae in the two clades are shown to differ also in colour and in the dimensions of their papillae, oral disk, and bell depth. They are referred to two varieties recognized in 1884 by von Lendenfeld. The clade occupying localities adjacent to Bass Strait is redescribed as subspecies C. mosaicus conservativus; the clade from New South Wales and southern Queensland spans the type locality (Port Jackson) of C. mosaicus and is designated C. mosaicus mosaicus. Their ecology and colour, in the context of von Lendenfeld's original descriptions, and the implications for fisheries are discussed.


2001 ◽  
Vol 14 (6) ◽  
pp. 901 ◽  
Author(s):  
E. J. Raulings ◽  
P. Y. Ladiges

Phenetic analyses of morphological variation within Stylidium graminifolium Sw. ex Willd. sens. lat. are presented. Plants collected from 65 localities throughout Victoria and southern New South Wales were scored for eight leaf and 11 floral characters. Flowers collected from a subset of these populations and preserved in ethanol were scored for 15 floral characters. Five forms were identified in the analyses with three species warranting taxonomic recognition. Stylidium graminifolium Sw. ex Willd. sens. str. has erect, glaucous, narrowly linear leaves up to 2.5 mm wide with regular, fine serrations along the leaf margin. This species has comparatively small, pale pink to white flowers with six prominent and two reduced throat appendages surrounding the entrance to the nectary tube. The scape is usually glandular–pubescent below the lowest flower and bears 10–50 flowers. This species is widespread in eastern Australia in well-drained sandy soils of lowlands and foothills. Stylidium montanum Raulings & Ladiges sp. nov. has suberect to spreading leaves with a fine, reddish scape bearing fewer than 30 deep pink flowers usually with six prominent and two reduced throat appendages. It differs from S. graminifolium in its habit, broader, oblanceolate leaves 3–5(–7) mm wide, pale to mid-green leaves, deep pink flowers and a glabrescent scape below the lowest flower. It occurs on peaty water-retentive soils in alpine and subalpine situations above c. 1000 m. Stylidium armeria (Labill.) Labill. is reinstated. This species is characterised by narrowly oblanceolate leaves (3)5–15 mm wide and 15–40 cm long, a glandular–hairy scape above the lowest flower and 30–110 flowers per scape. Flowers are light pink to deep magenta with eight prominent throat appendages. This species is widespread throughout south-eastern Australia and is morphologically variable throughout its distribution.


2019 ◽  
Vol 59 (4) ◽  
pp. 601 ◽  
Author(s):  
R. A. Hunter ◽  
P. M. Kennedy ◽  
E. J. Sparke

Statistical data from the years 1998–2005 were used to investigate the capacity of the grain industry in eastern Australia to supply the grain necessary for inclusion of 10% ethanol in petrol (E10), in addition to the demands of grain for feedlot cattle. Evidence is provided that the variations in grain yields and grain consumption by cattle in these years are representative of the on-going situation and that interpretations and conclusions have continuing relevance. During 1998–2005, annual production of cereal grains in eastern Australia varied between 10 and 25 million tonnes. Similar fluctuations (11 and 27 million tonnes) in annual grain yields were observed between 2006 and 2014. The Australian potential requirement for E10 ethanol is ~2500 ML annually, with a grain usage of 6.1–7.6 million tonnes depending on the grain sources used. Established national grain demand for ruminant and monogastric livestock, human consumption and other domestic uses is ~7.5 million tonnes per year. In years of average or higher grain yields in Queensland, New South Wales, Victoria and South Australia, the combined grain surpluses are more than sufficient for E10 ethanol to be produced domestically. In the years of the lowest grain yields, the surplus over more traditional usages is sufficient to satisfy only 50% of potential demand for E10. The greatest densities of feedlot cattle are in south-eastern Queensland, northern New South Wales and in the Murrumbidgee region of southern New South Wales. On a regional basis, the grain surplus to feedlot demand in most years in south-eastern Queensland is not sufficient to satisfy requirement for ethanol production without competition for grain. In years of highest yields, the grain surplus was sufficient for a 240-ML ethanol plant. Northern New South Wales could support at least two 400-ML plants in years of average and above yields, once established grain demands are met. The grain shortfall in years of lowest yield for one 400-ML plant is about half a million tonnes. Grain surpluses in average years in the Murrumbidgee region are sufficient to support at least one 400-ML plant. In years of lowest yield, only a 160-ML plant could be supported without competition for grain.


1999 ◽  
Vol 13 (3) ◽  
pp. 461 ◽  
Author(s):  
A. C. Miller ◽  
W. F. Ponder ◽  
S. A. Clark

The freshwater snail genus Fluvidona (Gastropoda, Caenogastropoda, Rissooidea, Hydrobiidae) is reapprasied and described using anatomical, shell, radula and opercular characters. Five species, three of them new, are described, being differentiated using anatomical, shell and opercular character states. A sixth species, similar to the Fluvidona species, is described and is tentatively assigned to the genus Austropyrgus Cotton. All six species live in northern New South Wales and southern Queensland and all are from single localities or very restricted areas. All species live in small streams, although one was found aestivating in soil in the bed of a small dry creek. The new species placed in Austropyrgus, from the Bunya Mountains, Queensland, is widely separated from putative congeners that are found in southern New South Wales and other parts of south-eastern Australia.


1993 ◽  
Vol 44 (5) ◽  
pp. 687 ◽  
Author(s):  
CJS Bolch ◽  
NG Elliott ◽  
RD Ward

Six samples (n =67 to 154) of blue-eye or deepsea trevalla were collected from south-eastern Australia (seamounts off New South Wales, a seamount south-east of Tasmania called the Cascade Plateau, off the east, south and west coasts of Tasmania, and off the coast of South Australia). All fish were analysed by starch or cellulose acetate electrophoresis for the products of seven polymorphic loci (defined in this study as those with an average heterozygosity greater than 0.06); a minimum of 24 fish per area were also analysed for 29 other less variable loci. The average heterozygosity per locus was 5.3%. Polymorphic loci showed no significant deviations from Hardy-Weinberg equilibrium. The coefficient of genetic subpopulation differentiation, GST, was 0.38%. Bootstrapping procedures showed that this low value could be attributed to sampling error alone. Contingency Χ2 analysis similarly failed to reveal any significant inter-sample differentiation for any locus. The results indicate that gene flow is sufficient to prevent any genetic differentiation among the sampled localities. During the course of the study a second trevalla species, Schedophilus labyrinthicus, was identified in the New South Wales component of the fishery.


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