Banana weevil borer control in south-eastern Queensland

1995 ◽  
Vol 35 (8) ◽  
pp. 1165 ◽  
Author(s):  
D Smith
Keyword(s):  
New South ◽  
Entomopathogenic Nematode ◽  
Insect Pest ◽  
Free Water ◽  
Banana Weevil ◽  
South Eastern ◽  
South Wales ◽  
Test Current ◽  
Nematode Mortality ◽  
Better Than

Banana weevil borer Cosmopolites sordidus (Germar) is the main insect pest of bananas in south-eastern Queensland and northern New South Wales. Four trials were conducted over 3 years to test current and new pesticides and 2 species of entomopathogenic nematode Heterorhabditis zealandica Poinar (strain 327) and Steinernemu carpocapsae (Weiser) (strain BW), in growers' plantations at Yandina and Wamuran. Nematodes were applied in a thickened aqueous solution into 200 mm deep incisions in the residual rhizomes of harvested plants usually at bimonthly intervals from November to May. The treatments were not effective possibly because of early nematode mortality caused by free water in the spike holes and/or because of the need for more frequent application. More than 1 or 2 applications a year, however, would probably be uneconomic. Prothiophos (5 g a.i./stool) was the most effective of the currently registered pesticides and bifenthrin (0.25 g a.i./stool) consistently effective among the new pesticides. Both were significantly better than all other treatments on most occasions. Efficacy was assessed using pseudostem traps (to assess beetle activity) and a sliced peripheral cut to the side of the rhizome (to assess damage by larvae). Monitoring of populations and damage by these techniques will promote the most effective and minimal use of pesticide treatments. Average beetle catches of 2 per trap and damage ratings of 2 are proposed as action thresholds for south-eastern Queensland.

The Distribution of Phytophthora cinnamomi Rands at Two Sites in Southern Western Australia and at Durras in South-Eastern New South Wales.

1982 ◽  
Vol 30 (2) ◽  
pp. 139 ◽  
Author(s):  
WM Blowes ◽  
WA Heather ◽  
N Malajczuk ◽  
SR Shea
Keyword(s):  
Western Australia ◽  
Phytophthora Cinnamomi ◽  
New South ◽  
New South Wales ◽  
Native Forest ◽  
Prevention Strategies ◽  
South Eastern ◽  
Isolation Techniques ◽  
South Wales ◽  
Western Australian

Native forest at Durras in south-eastern New South Wales and Jarrahdale in south-western Western Australia was examined for the presence of Phytophthora cinnamomi by two sampling and isolation techniques. With the lupin seeding baiting technique, randomly selected samples of soil and fine roots collected from the New South Wales site yielded P. cinnamomi when baited, while similar baiting of comparable samples from Western Australia failed. Direct plating of samples of upper roots and root collars of recently dead Banksia grandis from Western Australian sites yielded P. cinnamomi, while this organism was not isolated from comparable samples of chlorotic Macrozamia communis collected at the New South Wales site. The results suggest that the form of occurrence of P. cinnamomi and its association with disease in Australia vary in different situations. Viewing each situation independently might ensure the adoption of control/prevention strategies appropriate to all.

Biology of angel sharks (Squatina sp.) and sawsharks (Pristiophorus sp.) caught in south-eastern Australian trawl fisheries and the New South Wales shark-meshing (bather-protection) program

2017 ◽  
Vol 68 (2) ◽  
pp. 207 ◽  
Author(s):  
V. Raoult ◽  
V. Peddemors ◽  
J. E. Williamson
Keyword(s):  
New South ◽  
Growth Curves ◽  
Commercial Fishing ◽  
South Eastern ◽  
Total Length ◽  
South Wales ◽  
Large Numbers ◽  
Eastern Australia ◽  
Trawl Fisheries ◽  
South Eastern Australia

Two species of angel shark (Squatina australis, S. albipunctata) and two species of sawshark (Pristiophorus nudipinnis, P. cirratus) are frequently caught in south-eastern Australia. Little is known of the biology of these elasmobranchs, despite being caught as secondary target species in large numbers. The present study collected morphometric and reproductive data from sharks caught in shark-control nets, commercial fishing trawlers and research trawlers in south-eastern Australia. All four species had female-biased sexual size dimorphism, but growth curves between sexes did not differ. Male S. australis individuals were fully mature at ~800-mm total length, male P. nudipinnis at ~900mm, and male P. cirratus at ~800mm. Anterior pectoral margins could be used to determine total length in all species. No morphometric measurement could reliably separate Squatina spp. or Pristiophorus spp., although S. albipunctata over 1000-mm total length had larger eyes than did S. australis.

Overwintering of Tranzchelia discolor in prune orchards in New South Wales

1987 ◽  
Vol 38 (5) ◽  
pp. 895 ◽  
Author(s):  
PJ Ellison ◽  
L McFadyen ◽  
PF Kable
Keyword(s):  
Leaf Litter ◽  
New South ◽  
New South Wales ◽  
Cross Infection ◽  
Infected Leaf ◽  
South Wales ◽  
One Year ◽  
Tranzschelia Discolor ◽  
Better Than

There are several ways in which Tranzschelia discolor may overwinter in prune orchards in the Murrumbidgee Irrigation Areas of New South Wales. The aecial state, cross-infection from peach and almond, twig cankers, and urediniospores on living leaves persisting through winter were considered, but were thought to be unlikely. The ability of urediniospores to survive on infected leaf litter, either on the ground under trees or lodged within the framework of trees, was studied over two winters. Urediniospore viability declined with time, but in both seasons a proportion were capable of germination in the spring. Spores exposed within the tree framework survived better than those exposed on the ground, with about 20% and less than 5% respectively remaining viable by spring. In both winters spores from litter which overwintered within the framework of the tree were able to infect prune leaves in the spring. The infectivity of spores exposed on the ground was tested in the spring of one year and infections resulted on inoculated plants. The implications of these findings for the control of the rust in prunes are discussed.

Detection of the eastern pygmy-possum Cercartetus nanus (Marsupialia: Burramyidae) at Barren Grounds Nature Reserve, New South Wales.

2005 ◽  
Vol 27 (1) ◽  
pp. 85 ◽  
Author(s):  
JM Harris ◽  
RL Goldingay
Keyword(s):  
New South ◽  
Survey Methods ◽  
Conservation Status ◽  
New South Wales ◽  
Detection Methods ◽  
Isolated Populations ◽  
South Eastern ◽  
Nest Boxes ◽  
South Wales ◽  
Cercartetus Nanus

THE eastern pygmy-possum (Cercartetus nanus) has an extensive distribution, from south-eastern Queensland to south-eastern South Australia, and also into Tasmania (Strahan 1995). Despite this it is rarely detected in fauna surveys (Bowen and Goldingay 2000). This rarity in detection suggested that the species may be characterised by small and isolated populations, and therefore vulnerable to extinction. Consequently, it became listed as a 'Vulnerable' species in New South Wales (NSW) in 2001. Unless resolved, the low rate of detection of C. nanus will continue to hinder the acquisition of basic ecological information that is needed to more clearly define its conservation status and that is fundamental to the development of a recovery plan. An extensive body of survey data for NSW involving C. nanus has been reviewed by Bowen and Goldingay (2000). Among a range of survey methods aimed at detecting this species, trapping within flowering banksias and checking installed nest-boxes had the highest rates of detection. Indeed, one study in northern NSW captured 98 individuals over a 3- year period from within nest-boxes (Bladon et al. 2002). All other studies detected fewer than 15 C. nanus. It is clear that further research is required to investigate the effectiveness of a range of detection methods.

scholarly journals HIPPI-2: A versatile high-precision polarimeter

2020 ◽  
Vol 37 ◽  
Author(s):  
Jeremy Bailey ◽  
Daniel V. Cotton ◽  
Lucyna Kedziora-Chudczer ◽  
Ain De Horta ◽  
Darren Maybour
Keyword(s):  
High Precision ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
The University ◽  
Better Than

Abstract We describe the High-Precision Polarimetric Instrument-2 (HIPPI-2) a highly versatile stellar polarimeter developed at the University of New South Wales. Two copies of HIPPI-2 have been built and used on the 60-cm telescope at Western Sydney University’s (WSU) Penrith Observatory, the 8.1-m Gemini North Telescope at Mauna Kea and extensively on the 3.9-m Anglo-Australian Telescope (AAT). The precision of polarimetry, measured from repeat observations of bright stars in the SDSS g′band, is better than 3.5 ppm (parts per million) on the 3.9-m AAT and better than 11 ppm on the 60-cm WSU telescope. The precision is better at redder wavelengths and poorer in the blue. On the Gemini North 8-m telescope, the performance is limited by a very large and strongly wavelength-dependent TP that reached 1000’s of ppm at blue wavelengths and is much larger than we have seen on any other telescope.

scholarly journals Molecular phylogenetics and systematic revision of the south-eastern Australian Helicarionidae (Gastropoda, Stylommatophora)

2017 ◽  
Vol 86 (1) ◽  
pp. 51-95 ◽  
Author(s):  
Isabel T. Hyman ◽  
Irantzu de la Iglesia Lamborena ◽  
Frank Köhler
Keyword(s):  
New Species ◽  
Molecular Phylogenetics ◽  
New South ◽  
Shell Morphology ◽  
The South ◽  
Systematic Revision ◽  
South Eastern ◽  
Southeastern Australia ◽  
South Wales ◽  
One New Species

The south-eastern Australian helicarionid clade currently comprises six genera of snails and semislugs united by genital characters, including an epiphallic flagellum that produces a spiraling, spinose spermatophore, the absence of an epiphallic caecum, and the presence of at most a very short vagina. We comprehensively revise the taxonomy of this group based on comparative analyses of key morphological features and mitochondrial markers COI and 16S, revise the placement of several species described recently on the basis of shell morphology alone, and describe new taxa. The snail genus Brevisentis is monophyletic as currently understood, but includes an additional undescribed species from Wollemi National Park, New South Wales. Mysticarion is shown to contain four arboreal semislugs with wide, disjunct ranges, including one new species (Mysticarion obscurior sp. nov.). We synonymise Fastosarion staffordorum with Mysticarion hyalinus. The semislug Desidarion is synonymised with Parmavitrina, and we describe two new species of this genus, P. flavocarinata sp. nov. and P. maculosa sp. nov. The semi-arboreal semislug Cucullarion is herein included in the south-eastern Australian helicarionid clade based on morphological and genetic evidence, despite its more northerly distribution. Two small semislugs so far placed in Peloparion do not group together and a new genus, Ubiquitarion gen. nov., is described for Peloparion iridis. All of these genera, together with the semislug Helicarion (not included here), form a monophyletic radiation endemic to southeastern Australia.

Three new species of Parmelia subgen. Xanthoparmelia (Lichens) from south-eastern Australia

1976 ◽  
Vol 24 (5) ◽  
pp. 663 ◽  
Author(s):  
JA Elix
Keyword(s):  
New Species ◽  
Secondary Metabolites ◽  
New South ◽  
New South Wales ◽  
Usnic Acid ◽  
Australian Capital Territory ◽  
South Eastern ◽  
South Wales ◽  
Eastern Australia ◽  
Three New Species

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.

The vegetation of the south-eastern Riverina, New South Wales. II. The disclimax communities

1953 ◽  
Vol 1 (3) ◽  
pp. 548 ◽  
Author(s):  
CWE Moore
Keyword(s):  
New South ◽  
New South Wales ◽  
General Description ◽  
The South ◽  
South Eastern ◽  
South Wales

A general description of the disclimax communities in the south-eastem Riverina is presented.The disclimax communities are essentially the pastures developed on clearing some or all of the trees in the climax communities and grazing the herbaceous stratum. These pastures are discussed in relation to soil and the grazing factor. Notes on the occurrence of weeds and the possibilities of pasture improvement are given.

Pastures in temperate rice rotations of south-eastern Australia

1994 ◽  
Vol 34 (7) ◽  
pp. 959 ◽  
Author(s):  
MAE Lattimore
Keyword(s):  
Soil Fertility ◽  
Weed Control ◽  
New South ◽  
New South Wales ◽  
Cropping System ◽  
Environmental Pressures ◽  
South Eastern ◽  
South Wales ◽  
Eastern Australia ◽  
South Eastern Australia

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.

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