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Journal articles on the topic 'Radishes – Control – Western Australia'

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Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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1

Borger, Catherine, Abul Hashem, and Mario D’Antuono. "Summer weed species incidence in Western Australia varies between seasons." Weed Science 67, no. 05 (July 12, 2019): 589–94. http://dx.doi.org/10.1017/wsc.2019.30.

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AbstractAgronomic surveys of summer weed species are necessary to identify future research directions for optimal weed control, but usually focus on agricultural fields in a single season. To survey all species in the absence of weed control measures and determine species variability between seasons, a survey of 133 sites was conducted on roadsides adjoining agricultural fields throughout the Western Australian grainbelt in early 2015 and repeated in 2016 and 2017. The survey identified 144 species, but only 19 species were evident at more than 10% of sites. The most common species were weeping lovegrass [Eragrostis curvula (Schrad.) Nees], fleabane (Erigeron sp.), windmillgrass (Chloris truncata R. Br.), and wild radish (Raphanus raphanistrum L). The survey highlighted that weed species incidence varied between years. For example, C. truncata incidence was 30% in 2015 and 55% in 2016, while stinkgrass [Eragrostis cilianensis (All.) Vignolo ex Janch.] ranged from 20% in 2015 to 50% of sites in 2017. Conversely, density of individual species on the roadside was usually low, and density remained consistent between years. The survey highlighted multiple weed species that will require further research to optimize management programs. Raphanus raphanistrum and wild oat (Avena fatua L.) in particular are an issue for growers, as these species are highly detrimental winter weeds, and the survey demonstrates that they can also be common summer weeds. Control of these species with nonselective herbicides in summer as well as winter is likely to exacerbate the development of herbicide resistance.

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2

Maxwell, Aaron, and John K. Scott. "Pathogens on wild radish,Raphanus raphanistrum(Brassicaceae), in south-western Australia – implications for biological control." Australasian Plant Pathology 37, no. 5 (2008): 523. http://dx.doi.org/10.1071/ap08040.

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3

Walsh, Michael J., Charlotte Aves, and Stephen B. Powles. "Harvest Weed Seed Control Systems are Similarly Effective on Rigid Ryegrass." Weed Technology 31, no. 2 (March 2017): 178–83. http://dx.doi.org/10.1017/wet.2017.6.

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Harvest weed seed control (HWSC) systems have been developed to exploit the high proportions of seed retained at maturity by the annual weeds rigid ryegrass, wild radish, bromegrass, and wild oats. To evaluate the efficacy of HWSC systems on rigid ryegrass populations, three systems, the Harrington Seed Destructor (HSD), chaff carts, and narrow-windrow burning were compared at 24 sites across the western and southern wheat production regions of Australia. HWSC treatments were established at harvest (Nov. – Dec.) in wheat crops with low to moderate rigid ryegrass densities (1 to 26 plants m−2). Rigid ryegrass counts at the commencement of the next growing season (Apr. – May) determined that HWSC treatments were similarly effective in reducing emergence. Chaff carts, narrow-windrow burning, or HSD systems act similarly on rigid ryegrass seed collected during harvest to deliver substantial reductions in subsequent rigid ryegrass populations by restricting seedbank inputs. On average, population densities were reduced by 60%, but there was considerable variation between sites (37 to 90%) as influenced by seed production and the residual seedbank. Given the observed high rigid ryegrass seed production levels at crop maturity it is clear that HWSC has a vital role in preventing seedbank inputs in Australian conservation cropping systems.

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4

Hashem, Abul, R. Michael Collins, and David G. Bowran. "Efficacy of Interrow Weed Control Techniques in Wide Row Narrow-Leaf Lupin." Weed Technology 25, no. 1 (March 2011): 135–40. http://dx.doi.org/10.1614/wt-d-10-00081.1.

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The sharp decline in the area of lupin grown in Australia is partly attributed to the failure to control herbicide-resistant weeds in narrow-leaf lupin crops grown with the conventional 25-cm-wide row spacing. Growing lupin with wider row spacing allows for interrow weed control by nonselective herbicides using a sprayshield or physical methods. During 2003 to 2006, two experiments conducted at five sites evaluated the efficacy of interrow weed control techniques in narrow-leaf lupin crops grown in 55- to 65-cm-wide rows within the Western Australia wheatbelt. Interrow herbicides were applied POST using sprayshields, intrarow herbicides were banded on lupin rows at seeding, and interrow weeds were mowed using a garden mower. The main weed species at each site was rigid ryegrass, blue lupin, or wild radish. Paraquat plus diquat applied on the interrow of the lupin crop with sprayshields controlled up to 100% of weeds between rows, leading to increases in lupin grain yield in most of the sites. Glyphosate alone, a mixture of glyphosate plus metribuzin, and glyphosate followed by paraquat plus diquat also controlled interrow weeds, but did not increase lupin grain yield at any site. Thus, paraquat plus diquat is a better choice for interrow weed control in wide row lupin than glyphosate. Mowing did not improve weed control, but mowing followed by paraquat plus diquat increased lupin grain yield at one site. Regression models predicted that there was a strong relationship between weed biomass and lupin grain yield.

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5

Monjardino, M., D. J. Pannell, and S. B. Powles. "The economic value of haying and green manuring in the integrated management of annual ryegrass and wild radish in a Western Australian farming system." Australian Journal of Experimental Agriculture 44, no. 12 (2004): 1195. http://dx.doi.org/10.1071/ea03144.

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Most cropping farms in Western Australia must deal with the management of herbicide-resistant populations of weeds such as annual ryegrass (Lolium rigidum) and wild radish (Raphanus raphanistrum). Farmers are approaching the problem of herbicide resistance by adopting integrated weed management systems, which allow weed control with a range of different techniques. These systems include non-herbicide methods ranging from delayed seeding and high crop seeding rates to the use of non-cropping phases in the rotation. In this paper, the Multi-species RIM (resistance and integrated management) model was used to investigate the value of including non-cropping phases in the crop rotation. Non-crop options investigated here were haying and green manuring. Despite them providing excellent weed control, it was found that inclusion of these non-cropping phases did not increase returns, except in cases of extreme weed numbers and high levels of herbicide resistance.

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6

Coutts, B. A., J. R. Hawkes, and R. A. C. Jones. "Occurrence of Beet western yellows virus and its aphid vectors in over-summering broad-leafed weeds and volunteer crop plants in the grainbelt region of south-western Australia." Australian Journal of Agricultural Research 57, no. 9 (2006): 975. http://dx.doi.org/10.1071/ar05407.

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During the summer periods of 2000, 2001, and 2002, presence of Beet western yellows virus (BWYV) was assessed in tests on samples from at least 12 broad-leafed weed species and 5 types of volunteer crop plants growing in the grainbelt region of south-western Australia. In 2000, BWYV was detected in 2 of 35 sites in 2% of 1437 samples, whereas in 2001 and 2002 the corresponding figures were 3 of 108 sites in 0.04% of 8782 samples, and 1 of 30 sites in 0.08% of 2524 samples, respectively. The sites with infection were in northern, central, and southern grainbelt districts, and in high and medium rainfall zones. The hosts in which BWYV was detected were the weeds Citrullus lanatus (Afghan or wild melon), Conzya spp. (fleabane), Navarretia squarrosa (stinkweed), and Solanum nigrum (blackberry nightshade), and the volunteer crop plant Brassica napus (canola). Small populations of aphids were found over-summering at 28% (2000), 4% (2001), and 17% (2002) of sites, mostly infesting volunteer canola and Raphanus raphanistrum (wild radish). They occurred in high, medium, and low rainfall zones, but were only found in central and southern grainbelt districts. The predominant aphid species found was Brevicoryne brassicae, with Acyrthosiphon pisum, Brachycaudus helichrysi, Hyperomyzus lactucae, Lipaphis erysimi, Myzus persicae, and Uroleucon sonchi present occasionally. The importance of these findings in relation to the epidemiology and control of BWYV in the grainbelt is discussed.

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7

Monjardino, M., D. J. Pannell, and S. B. Powles. "The economic value of pasture phases in the integrated management of annual ryegrass and wild radish in a Western Australian farming system." Australian Journal of Experimental Agriculture 44, no. 3 (2004): 265. http://dx.doi.org/10.1071/ea03050.

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Most cropping farms in Western Australia must deal with the management of herbicide-resistant populations of weeds such as annual ryegrass (Lolium rigidum Gaudin) and wild radish (Raphanus raphanistrum�L.). Farmers are approaching the problem of herbicide resistance by adopting integrated weed management systems, which allow weed control with a range of different techniques. One important question in the design of such systems is whether and when the benefits of including pasture in rotation with crops exceed the costs. In this paper, the multi-species resistance and integrated management model was used to investigate the value of including pasture phases in the crop rotation. The most promising of the systems examined appears to be so-called 'phase farming', involving occasional 3-year phases of pasture rather than shorter, more frequent and regular pasture phases. This approach was competitive with the best continuous cropping rotation in a number of scenarios, particularly where herbicide resistance was at high levels.

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8

Ashworth, Michael B., Michael J. Walsh, Ken C. Flower, and Stephen B. Powles. "Identification of glyphosate-resistant Lolium rigidum and Raphanus raphanistrum populations within the first Western Australian plantings of transgenic glyphosate-resistant canola." Crop and Pasture Science 66, no. 9 (2015): 930. http://dx.doi.org/10.1071/cp15031.

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Transgenic glyphosate-resistant canola was first commercially grown in Western Australia (WA) in 2010, providing an opportunity to obtain important baseline data regarding the level of glyphosate resistance in weeds following the exclusive use of glyphosate for in-crop weed control. In this study, two surveys (2010 and 2011) were conducted across the 14 Mha of the grainbelt of WA. The 2010 survey was carried out at the late-flowering stage of glyphosate-resistant canola, whereas the 2011 survey was conducted at an earlier growth stage (6–8 leaves), ~2–3 weeks after the second in-crop glyphosate application. During the surveys, 239 fields were visited, representing an estimated combined area of 24 000 ha. The 2011 survey alone represented a subsample of 23% of the total glyphosate-resistant canola planting in the WA grainbelt for that season. Glyphosate resistance was identified in one population of wild radish (Raphanus raphanistrum L.) and in eight annual ryegrass (Lolium rigidum L.) populations. None of the tested capeweed (Arctotheca calendula (L.) Levyns) populations were glyphosate-resistant. In this survey, no populations of barley grass (Hordeum spp.), brome grass (Bromus spp.), wild oat (Avena spp.) or small-flowered mallow (Malva parviflora L.) survived glyphosate application. Despite a long history of pre-seeding and fallow glyphosate use in WA, this survey found that glyphosate still provides excellent in-crop control of most species; however, some resistance is evident, requiring diverse weed control techniques to limit their spread.

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9

Caesar, A. J., R. T. Lartey, and T. Caesar-TonThat. "First Report of Anthracnose Stem Canker of the Invasive Perennial Weed Lepidium draba Caused by Colletotrichum higginsianum in Europe." Plant Disease 94, no. 9 (September 2010): 1166. http://dx.doi.org/10.1094/pdis-94-9-1166c.

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Exotic perennial Lepidium draba, native to Eurasia, is an invasive weed in dense stands in rangelands and disturbed areas in several states of the western United States and an agricultural weed in the prairie provinces of Canada. To determine strategies, such as a potential multipathogen strategy (1), for biological control of the weed, surveys that included the native range were conducted in spring 2009 to detect diseases that occur on this weed. Several stunted and chlorotic plants were found scattered throughout a stand of L. draba growing in a vacant lot near Riddes, Switzerland (46°08′22.99″N, 7°9′19.02″E): ( http://maps.google.com/maps?source=earth&ll=46.13983490,7.15503250&layer= c&cbll=46.13983490,7.15503250&cbp=1,360,,0,5 ). Affected plants had reddish brown cankers on the lower stems, usually elongated and irregular in shape and slightly sunken. Insect injury was associated with the cankers. Symptoms often occurred on plants that were also infected with Rhizoctonia solani. After surface disinfestation with 0.1% sodium hypochlorite, tissue adjacent to and including lesions were plated on acidified potato dextrose agar and incubated at 20 to 25°C for 1 week. Zonate, dark gray colonies with sparse mycelia resulted that exhibited abundant, faintly pink spore masses with numerous dense clusters of black setae. Spores were single celled, hyaline, cylindrical to oval shaped, and 13.5 to 19.5 × 4 to 5.5 μm. Setae were 1- to 3-septate and 20 to 42 × 3 to 5 μm. These morphological traits correspond to Colletotrichum higginsianum. For pathogenicity tests, three 4-month-old L. draba plants were sprayed until runoff with a 106 conidia/ml suspension of the fungus and incubated for 72 h in plastic bags at 20 to 25°C in a quarantine greenhouse. Within 4 days, water-soaked lesions appeared that coalesced, resulting in chlorosis and collapse of inoculated leaves. Such symptoms are typical of infection by C. higginsianum and similar necrotrophic species (4). Fungi isolated from inoculated leaves were identified as C. higginsianum. To assess the host range of C. higginsianum, three plants each of turnip, radish, mustard greens, kale, broccoli raab, and Chinese cabbage, all in the Brassicaceae to which L. draba belongs, were inoculated with the same conditions used for the pathogenicity tests. Control plants in pathogenicity and host range tests were sprayed with sterile distilled water and all experiments were repeated at least once. All control plants were symptomless. Leaf necrosis occurred on radish and turnip and to a lesser extent on the lower leaves of Chinese cabbage and broccoli; numerous scattered dark necrotic flecks and small grayish leaf spots occurred on kale and mustard greens, respectively. These results are similar to previous studies (2,3) involving a cultivated species as the host in the field. The ITS1, 5.8S, and ITS2 sequences of this fungus (GenBank No. HM044877) were 99% similar to sequences of multiple isolates of C. higginsianum (GenBank Nos. AB042302, AB042303, AB455253, AJ558109, and AJ558110). To our knowledge, this is the first report of C. higginsianum on a wild species of the Brassicaceae, although a Colletotrichum sp. was reported on wild radish in Australia (1). References: (1) A. Maxwell and J. K. Scott. Australas. Plant Pathol. 37:523, 2008. (2) R. O'Connell et al. Mol. Plant-Microbe Interact. 17:272, 2004. (3) R. P. Scheffer. N. C. Agric. Exp. Stn. Tech. Bull. 1950. (4) H. Sun and J. Z. Zhang. Eur. J. Plant Pathol. 125:459, 2009.

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10

Owen, Mechelle J., Neree J. Martinez, and Stephen B. Powles. "Multiple herbicide-resistant wild radish (Raphanus raphanistrum) populations dominate Western Australian cropping fields." Crop and Pasture Science 66, no. 10 (2015): 1079. http://dx.doi.org/10.1071/cp15063.

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Raphanus raphanistrum is a problematic weed, which has become increasingly difficult to control in Australian cropping regions. In 2010, a random survey was conducted across 14 million ha of the Western Australian grain belt to establish the frequency of herbicide resistance in R. raphanistrum and to monitor the change in resistance levels by comparing results with a previous survey in 2003. Screening R. raphanistrum populations with herbicides commonly used to control this weed revealed that most populations (84%) contained individual plants resistant to the acetolactate synthase-inhibiting herbicide chlorsulfuron, whereas 49% of populations also had plants resistant to the imidazolinone herbicides. Resistance to other mode of action herbicides (2,4-D (76%) and diflufenican (49%)) was also common. Glyphosate, atrazine and pyrasulfotole + bromoxynil remained effective on most R. raphanistrum populations. These results demonstrate that resistance to some herbicides has increased significantly since 2003 when the values were 54% for chlorsulfuron and 60% for 2,4-D; therefore, a wide range of weed management options that target all phases of the cropping program are needed to sustain these cropping systems in the future.

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11

Walsh, Michael J., and Stephen B. Powles. "High Seed Retention at Maturity of Annual Weeds Infesting Crop Fields Highlights the Potential for Harvest Weed Seed Control." Weed Technology 28, no. 3 (September 2014): 486–93. http://dx.doi.org/10.1614/wt-d-13-00183.1.

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Seed production of annual weeds persisting through cropping phases replenishes/establishes viable seed banks from which these weeds will continue to interfere with crop production. Harvest weed seed control (HWSC) systems are now viewed as an effective means of interrupting this process by targeting mature weed seed, preventing seed bank inputs. However, the efficacy of these systems is directly related to the proportion of total seed production that the targeted weed species retains (seed retention) at crop maturity. This study determined the seed retention of the four dominant annual weeds of Australian cropping systems - annual ryegrass, wild radish, brome grass, and wild oat. Beginning at the first opportunity for wheat harvest and on a weekly basis for 28 d afterwards the proportion of total seed production retained above a 15 cm harvest cutting height was determined for these weed species present in wheat crops at nine locations across the Western Australian (WA) wheat-belt. Very high proportions of total seed production were retained at wheat crop maturity for annual ryegrass (85%), wild radish (99%), brome grass (77%), and wild oat (84%). Importantly, seed retention remained high for annual ryegrass and wild radish throughout the 28 d harvest period. At the end of this period, 63 and 79% of total seed production for annual ryegrass and wild radish respectively, was retained above harvest cutting height. However, seed retention for brome grass (41%) and wild oat (39%) was substantially lower after 28 d. High seed retention at crop maturity, as identified here, clearly indicates the potential for HWSC systems to reduce seed bank replenishment and diminish subsequent crop interference by the four most problematic species of Australian crops.

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12

Musk, A. W., R. Shean, N. Walker, and M. Swanson. "Progress on smoking control in Western Australia." BMJ 308, no. 6925 (February 5, 1994): 395–98. http://dx.doi.org/10.1136/bmj.308.6925.395.

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13

Musk, A. W., R. Shean, and S. Woodward. "Legislation for smoking control in Western Australia." BMJ 290, no. 6481 (May 25, 1985): 1562–65. http://dx.doi.org/10.1136/bmj.290.6481.1562.

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14

Walsh, Michael J., Stephen B. Powles, Brett R. Beard, Ben T. Parkin, and Sally A. Porter. "Multiple-herbicide resistance across four modes of action in wild radish (Raphanus raphanistrum)." Weed Science 52, no. 1 (February 2004): 8–13. http://dx.doi.org/10.1614/ws-03-016r.

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Populations of wild radish were collected from two fields in the northern Western Australian wheatbelt, where typical herbicide-use patterns had been practiced for the previous 17 seasons within an intensive crop production program. The herbicide resistance status of these populations clearly established that there was multiple-herbicide resistance across many herbicides from at least four modes of action. One population exhibited multiple-herbicide resistance to the phytoene desaturase (PDS)–inhibiting herbicide diflufenican (3.0-fold), the auxin analog herbicide 2,4-D (2.2-fold), and the photosystem II–inhibiting herbicides metribuzin and atrazine. Another population was found to be multiply resistant to the acetolactate synthase–inhibiting herbicides, the PDS-inhibiting herbicide diflufenican (2.5-fold), and the auxin analog herbicide 2,4-D amine (2.4-fold). Therefore, each population has developed multiple-herbicide resistance across several modes of action. The multiple resistance status of these wild radish populations developed from conventional herbicide usage in intensive cropping rotations, indicating a dramatic challenge for the future control of wild radish.

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15

Pilkington, Albert (Sonny) A. G., Owen B. J. Carter, Alexander S. Cameron, and Sandra C. Thompson. "Tobacco control practices among Aboriginal health professionals in Western Australia." Australian Journal of Primary Health 15, no. 2 (2009): 152. http://dx.doi.org/10.1071/py08066.

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Smoking among Aboriginal people is extremely widespread (50 v. 17% of the general population). Aboriginal Health Workers (AHW) are at the vanguard of tackling this problem but many themselves smoke and little is known of their knowledge, attitudes and practices regarding smoking cessation. Structured telephone interviews were conducted with 36 AHW, including 31% current smokers, 31% ex-smokers and 38% non-smokers, to assess their current smoking cessation practices and knowledge of health risks, nicotine dependence, cessation strategies and pharmacotherapies. AHW considered diabetes, alcohol use and heart disease more problematic than smoking among Aboriginal people. Fear of appearing hypocritical stopped many who smoke from discussing smoking cessation with clients but also stopped some non-smoking AHW whose colleagues or family smoked. Cultural concerns about telling others ‘what to do’ was also a major impediment. Knowledge of the health effects of smoking was good, but knowledge of appropriate advice around cessation pharmacotherapies was suboptimal. AHW trained in smoking cessation were more knowledgeable and active in smoking cessation, but most AHW had received no training, despite being keen to do so. Specific smoking cessation training is sought and appears needed by AHW, particularly in the areas of brief interventions, motivational interviewing, dependence assessment and pharmacotherapies.

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16

Cook, David C., and Rob W. Fraser. "Eradication versus control of Mediterranean fruit fly in Western Australia." Agricultural and Forest Entomology 17, no. 2 (December 10, 2014): 173–80. http://dx.doi.org/10.1111/afe.12093.

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17

Mayberry, Chris, Shane K. Maloney, Peter Mawson, and Roberta Bencini. "Seasonal anoestrus in western grey kangaroos (Macropus fuliginosus ocydromus) in south-western Australia." Australian Mammalogy 32, no. 2 (2010): 189. http://dx.doi.org/10.1071/am09029.

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Public opposition to culling has generated interest in wildlife management through fertility control. Temporary, non-invasive methods of fertility control, such as by xenobiotics, can be best employed with an understanding of the target species’ breeding cycle. We used head length to calculate the conception date of 136 pouch-young of western grey kangaroos (Macropus fuliginosus ocydromus) from four sites around Perth, Western Australia, between May 2006 and October 2008: Thomsons Lake Nature Reserve (n = 80), Harry Waring Marsupial Reserve (n = 11), Melville Glades Golf Club (n = 29), and Marangaroo Golf Course (n = 16). In total, 78% of all pouch-young were conceived in the months of December–February, 11% in November, 6% in March, and less than 2% in each of October, April and May. We examined the ovaries of 134 females culled from Thomsons Lake Nature Reserve during the months of May–July 2006. Only seven ovaries had a follicle of at least 5 mm and none had an active corpus luteum. These data indicate that the breeding activity M. f. ocydromus is restricted almost exclusively to the months of November–February. A practical application of this finding is that temporary fertility controls applied early in October will provide a full year of birth control if they remain active for seven months.

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18

Burman, Neil T. C. "A case: control study of oro-facial clefts in Western Australia." Australian Dental Journal 30, no. 6 (December 1985): 423–29. http://dx.doi.org/10.1111/j.1834-7819.1985.tb02553.x.

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19

Harris, Steve. "Industrial Symbiosis in the Kwinana Industrial Area (Western Australia)." Measurement and Control 40, no. 8 (October 2007): 239–44. http://dx.doi.org/10.1177/002029400704000802.

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The Kwinana Industrial Area of Western Australia has emerged as a world leading example of industrial symbiosis. This involves businesses in close proximity exchanging by-product material, water and energy. Utilisation of a previously discarded resource as an alternative input to another company can help improve both business and sustainability performance of the participating companies. For example, the exchange can reduce disposal costs and provide a cheaper input for the receiving company. The environmental benefits can include reduced collective resource consumption and waste generation, whilst the social benefits may include new employment opportunities and reduction of emission (e.g. water or traffic) to the local community. This article presents the integrated research programme undertaken at the Centre of Excellence in Cleaner Production, Curtin University of Technology which seeks to enhance the uptake of industrial symbiosis in Australian heavy industrial areas. The case of Kwinana is discussed with illustrative case studies of industrial symbiosis exchanges. International interest in the creation of industrial symbiosis continues to grow and the article concludes with a discussion on the emerging role of measurement and control technolo

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20

Mak, Donna B., Graeme H. Johnson, Lewis J. Marshall, and Jacqueline K. Mein. "Control of genital chlamydial infection in the Kimberley region of Western Australia." Medical Journal of Australia 180, no. 1 (January 2004): 45. http://dx.doi.org/10.5694/j.1326-5377.2004.tb05779.x.

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21

Burrows, N. D., and W. L. McCaw. "Fuel characteristics and bushfire control in banksia low woodlands in Western Australia." Journal of Environmental Management 31, no. 3 (October 1990): 229–36. http://dx.doi.org/10.1016/s0301-4797(05)80036-2.

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22

Campbell, S., E. J. Roberts, R. Craemer, C. Pacioni, L. Rollins, and A. P. Woolnough. "Assessing the economic benefits of starling detection and control to Western Australia." Australasian Journal of Environmental Management 23, no. 1 (April 30, 2015): 81–99. http://dx.doi.org/10.1080/14486563.2015.1028486.

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23

Werler, Martha M., Carol Bower, Jan Payne, and Peta Serna. "Findings on potential teratogens from a case-control study in Western Australia." Australian and New Zealand Journal of Obstetrics and Gynaecology 43, no. 6 (December 2003): 443–47. http://dx.doi.org/10.1046/j.0004-8666.2003.00127.x.

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24

Pacioni, Carlo, Malcolm S. Kennedy, Oliver Berry, Danielle Stephens, and Nathan H. Schumaker. "Spatially-explicit model for assessing wild dog control strategies in Western Australia." Ecological Modelling 368 (January 2018): 246–56. http://dx.doi.org/10.1016/j.ecolmodel.2017.12.001.

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Stevenson, M., K. Jamrozik, and P. Burton. "A case-control study of childhood pedestrian injuries in Perth, Western Australia." Journal of Epidemiology & Community Health 50, no. 3 (June 1, 1996): 280–87. http://dx.doi.org/10.1136/jech.50.3.280.

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26

White, Michael A. "Community Colleges in Western Australia — Historical Accidents and Policy Dilemmas." Australian Journal of Education 30, no. 1 (April 1986): 92–106. http://dx.doi.org/10.1177/000494418603000106.

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This paper traces the establishment of Western Australia's three community colleges. Features of this development are significant government initiatives, historical accidents, and policy issues concerning the coordination, control, and future directions of new post-secondary institutions. All this is examined against a background of debates about the control and management of the state's system of technical and further education. The policy issues that are raised are similar to issues discussed in most Australian states, and invite speculation about the future shape of technical and further education in Western Australia that is highly relevant to what is happening in other parts of the nation.

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Maino, James L., Matthew Binns, and Paul Umina. "No longer a west-side story – pesticide resistance discovered in the eastern range of a major Australian crop pest, Halotydeus destructor (Acari: Penthaleidae)." Crop and Pasture Science 69, no. 2 (2018): 216. http://dx.doi.org/10.1071/cp17327.

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The redlegged earth mite, Halotydeus destructor (Tucker) (Acari: Penthaleidae), is an important pest of pastures, broad-acre crops, and vegetables across southern Australia. Populations of H. destructor in Western Australia have been known to be resistant to pyrethroid and organophosphorus pesticides since 2006 and 2014, respectively. Resistant populations are currently widespread across Western Australia’s southern growing region but have, until now, remained undetected in the large south-eastern Australian range of H. destructor, despite ongoing resistance screening since 2006. Following reports of a field control failure in the Upper South East district in South Australia in 2016, resistance testing determined this South Australian population was resistant to pyrethroid and organophosphorus pesticides. The levels of resistance discovered were similar to resistant H. destructor populations in Western Australia, which are associated with chemical control failures. This work confirms for the first-time that pesticide resistant populations of H. destructor are no longer isolated to Western Australia.

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Seymour, M. "Narbon bean (Vicia narbonensis) agronomy in south-western Australia." Australian Journal of Experimental Agriculture 46, no. 10 (2006): 1355. http://dx.doi.org/10.1071/ea04091.

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Narbon bean (Vicia narbonensis L.) shows promise as a fodder, green manure and grain crop in south-western Australia. This study examines the effect of time of sowing (2 experiments), plant density (3 experiments) and reaction to herbicides (4 experiments on tolerance to herbicides and 1 experiment on removing narbon bean from a wheat crop) in 10 separate field experiments sown at 4 locations in the mallee region of Western Australia from 1998 to 2001. Narbon bean was found to be unresponsive to changes in sowing date with yield maintained until the first week of June. The optimum plant density (90% of fitted maximum) for seed yield was found to be 31 plants/m2, equivalent to sowing rates in the range of 75–100 kg/ha. A wide range of herbicides applied either before sowing or immediately after sowing and before emergence had no significant effect on grain yield. These included simazine (750 g a.i./ha), cyanazine (1.25 kg a.i./ha) and diuron (500 g a.i./ha), which were applied immediately before sowing, and imazethapyr (29 g a.i./ha), which was applied after sowing, before emergence. Diflufenican (75 g a.i./ha) was found to be the only available option for post-emergence control of broadleaf weeds. The use of the non-selective herbicides glyphosate (450 g a.i./L) and Sprayseed 250 (paraquat 135 g a.i./L and diquat 115 g a.i./L) as post-emergence herbicides was found to be unpredictable at a range of application rates. Results ranged from a yield loss of 47% to a yield increase of 23%. In an experiment to test a range of herbicides for the selective control of narbon bean within a wheat crop, numerous herbicides were found to effectively remove volunteer narbon bean indicating that narbon bean is unlikely to become a weed in most cereal cropping systems.

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Slate, Tony, Ralf Napalowski, Steve Pastor, Kevin Black, and Robert Stomp. "The Pyrenees development: a new oil development for Western Australia." APPEA Journal 50, no. 1 (2010): 241. http://dx.doi.org/10.1071/aj09014.

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The Pyrenees development comprises the concurrent development of three oil and gas fields: Ravensworth, Crosby and Stickle. The fields are located in production licenses WA-42-L and WA-43-L, offshore Western Australia, in the Exmouth Sub-basin. The development will be one of the largest offshore oil developments in Australia for some time. It is a complex subsea development consisting of a series of manifolds, control umbilicals and flexible flowlines tied back to a disconnectable floating production, storage and offloading (FPSO) vessel. The development involves the construction of 17 subsea wells, including 13 horizontal producers, three vertical water disposal wells and one gas injection well. The project is presently on production with first oil achieved during February 2010. This paper gives an overview of the field development and describes the engineering and technologies that have been selected to enable the economic development of these fields. The Pyrenees fields are low relief, with oil columns of about 40 metres in excellent quality reservoirs of the Barrow Group. Two of the fields have small gas caps and a strong bottom water drive common to all fields is expected to assist recovery. The oil is a moderate viscosity, low gas-to-oil ratio (GOR), 19°API crude. Due to the geometry of the reservoirs, the expected drive mechanism and the nature of the crude, effective oil recovery requires maximum reservoir contact and hence the drilling of long near horizontal wells. Besides the challenging nature of well construction, other technologies adopted to improve recovery efficiency and operability includes subsea multiphase flow meters and sand control with inflow control devices.

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30

Davison, Clare. "Power and control: The experiences of privately practising midwives (PPMs) in Western Australia." Women and Birth 32 (September 2019): S21. http://dx.doi.org/10.1016/j.wombi.2019.07.212.

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31

Loughman, R. "Chemical control in Western Australia of soilborne flag smut caused by Urocystis agropyri." Australasian Plant Pathology 18, no. 4 (1989): 94. http://dx.doi.org/10.1071/app9890094.

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32

SCHANTZ, P. M. "Intestinal Parasites of Dogs in Western Australia: Progress in Control and New Concerns." Veterinary Journal 157, no. 3 (May 1999): 222–24. http://dx.doi.org/10.1053/tvjl.1999.0372.

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33

Ridsdill-Smith, T. J., and A. A. Kirk. "Selecting dung beetles [Scarabaeinae] from spain for bushfly control in south-western Australia." Entomophaga 30, no. 3 (September 1985): 217–23. http://dx.doi.org/10.1007/bf02372222.

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34

Slevin, T., J. Clarkson, and D. English. "Skin Cancer Control Western Australia: Is it Working and What Have we Learned?" Radiation Protection Dosimetry 91, no. 1 (September 2, 2000): 303–6. http://dx.doi.org/10.1093/oxfordjournals.rpd.a033225.

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35

Riley, T. V., G. L. O'Neill, R. A. Bowman, and C. L. Golledge. "Clostridium difficile-associated diarrhoea: epidemiological data from Western Australia." Epidemiology and Infection 113, no. 1 (August 1994): 13–20. http://dx.doi.org/10.1017/s0950268800051414.

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SUMMARYThe incidence ofClostridium difficile-associated diarrhoea (CDAD) was investigated retrospectively at a 690-bed teaching hospital for the period 1983–92. Our aims were to determine: (i) the distribution by age and sex of patients with CDAD, (ii) the possibility of a seasonal trend and, (iii) the influence of infection control procedures, contamination of the hospital environment and the use of third-generation cephalosporins. The laboratory diagnosis of CDAD was based on demonstration of the organism by stool culture and/or detection of specific cytotoxin in stool filtrates.C. difficilewas detected in 917 patients who were being investigated for diarrhoeal illness. Yearly isolations varied from a low of 49 in 1983 to a high of 120 in 1990 (Chi square for linear trend 128·8;P <0·005). Most patients were elderly, with 63% aged 60 years or more; the majority (59%) were female. The relationship between culture ofC. difficileand detection of cytotoxin in faecal extracts was also examined. Sixty percent of a sample of 132 isolates from patients in whom faecal cytotoxin was not detected produced cytotoxinin vitro, suggesting that culture is a more sensitive indicator of infection withC. difficilethan cytotoxin detection. When the total number of faecal specimens received in the laboratory was used as a denominator there was an increase in the number of incident cases of CDAD between 1983 and 1990, apart from 1986. When occupied bed days was used as the denominator a similar trend was observed with a peak in 1990. These increases correlated with an increase in the use of third-generation cephalosporins at SCGH between 1983 and 1989 (Pearson's correlation coefficient, 0·90). The introduction of Body Substance Isolation in 1989, in conjunction with other infection control procedures, appears to have halted the rise, despite a continuing use of broad-spectrum cephalosporins. In order to reduce the number of cases of CDAD, either a reduction in levels of environmental contamination or a reduction in the use of third-generation cephalosporins is required. If this can be achieved the economic consequences, in terms of an opportunity cost, will be considerable.

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36

Codreanu, Tudor A., Sera Ngeh, Abigail Trewin, and Paul K. Armstrong. "Successful Control of an Onboard COVID-19 Outbreak Using the Cruise Ship as a Quarantine Facility, Western Australia, Australia." Emerging Infectious Diseases 27, no. 5 (May 2021): 1279–87. http://dx.doi.org/10.3201/eid2705.204142.

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37

Parvaresh, Laila, Shopna K. Bag, Jin-Gun Cho, Neil Heron, Hassan Assareh, Sophie Norton, Stephen Corbett, and Ben J. Marais. "Monitoring tuberculosis contact tracing outcomes in Western Sydney, Australia." BMJ Open Respiratory Research 5, no. 1 (October 2018): e000341. http://dx.doi.org/10.1136/bmjresp-2018-000341.

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Treatment of latent tuberculosis infection (LTBI) is an important component of strategies to achieve global tuberculosis (TB) elimination, but implementation is rarely monitored. This is a retrospective review of TB contact tracing outcomes at one of the busiest TB clinics in Australia, measured against the Centre for Disease Control and Prevention performance indicators. In total, 45 of 53 (85%) pulmonary TB cases had 171 close contacts, of whom 139 (81%) were evaluated with a tuberculin skin test (TST); 58 of 139 (42%) were positive at baseline. Among 57 close contacts of 16 sputum smear-positive TB cases, the elicitation, evaluation, initiation of LTBI treatment and completion rates were 93%, 86%, 14% and 100%, and among 114 close contacts of 37 sputum smear-negative pulmonary TB cases 81%, 83%, 16% and 89%, respectively. Of 79 contacts with an initial negative TST, 19 of 47 (40%) demonstrated TST conversion when retested; 5 of 19 (26%) were offered LTBI treatment. Four secondary TB cases were identified. One incident TB case developed a pleural effusion 5 months after TST conversion, despite LTBI treatment. Apart from young children, LTBI treatment was inconsistently initiated in household TB contacts. Safe and pragmatic treatment options, as well as functional monitoring frameworks, are essential to improve LTBI treatment implementation.

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38

Hacker, RB. "An evaluation of range regeneration programmes in Western Australia." Rangeland Journal 11, no. 2 (1989): 89. http://dx.doi.org/10.1071/rj9890089.

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Range regeneration programmes and related research are reviewed for three major project areas - the Ord River Catchment, the Fitzroy River Frontage and the Winter Rainiall Arid Zone. Successful regeneration techniques are well established for the Ord River Catchment although the ongoing management of treated areas presents a number of difficulties. Regeneration techniques for the Fitzroy Frontage have not been firmly established but, if economically justifiable, are likely to involve water ponding and the amelioration of soil conditions by organic mulch accumulation. It is argued that extension of the water ponding principle to areas of higher slope than those on which the technique is normally used is likely to be an important component of the development of regeneration procedures in the arid zone. Experience in all three environments suggests that a number of principles apply generally. Control of grazing by native and feral animals is a pre-requisite for successful regeneration in any environment. The rate of response to regeneration treatments seems to be inversely related to the degree of degradation suggesting that less severely degraded areas are likely to provide the best economic return from regeneration programmes. Processes of ecological succession seem important in all regeneration activities in the rangelands and cannot be entirely bypassed by cultural intervention.

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39

King, DR, AJ Oliver, and SH Wheeler. "The European Rabbit Flea, Spilopsyllus Cuniculi, in South-Western Australia." Wildlife Research 12, no. 2 (1985): 227. http://dx.doi.org/10.1071/wr9850227.

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Spilopsyllus cuniculi, a vector of myxomatosis, was introduced by various methods at several sites in the south-west of Western Australia in May 1969 for the biological control of rabbits. It spread rapidly and within 14 months all rabbits collected within about 5 km of one of the release sites were infested with fleas. Further introductions of the flea during the past decade have resulted in a wide distribution for it throughout the south-west of the state. Flea numbers fluctuate seasonally and are highest in reproductively active female rabbits in winter and spring. Since the introductions of the flea, the timing of epizootics of myxomatosis has changed and their effect on rabbit populations has increased.

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40

Caputi, Nick, Simon de Lestang, Chris Reid, Alex Hesp, and Jason How. "Maximum economic yield of the western rock lobster fishery of Western Australia after moving from effort to quota control." Marine Policy 51 (January 2015): 452–64. http://dx.doi.org/10.1016/j.marpol.2014.10.006.

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41

Peacock, D. E. "Historical accounts of the numbat Myrmecobius fasciatus from south-west Western Australia." Australian Mammalogy 28, no. 1 (2006): 97. http://dx.doi.org/10.1071/am06012.

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The numbat (Myrmecobius fasciatus ) was formerly widespread across most of southern Western Australia, South Australia and western New South Wales. It delined in the early 1900's, possibly due to foxes, cats, or an epizootic. Protection through control of foxes and cats, and translocation, has resulted in several populations being re-established at sites of historical distribution.

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42

Di Martino, Gianluca, Roumen Sankoff, Craig Marshall, and Bobby Chopra. "The Coniston development: another offshore challenge in Western Australia." APPEA Journal 54, no. 2 (2014): 475. http://dx.doi.org/10.1071/aj13048.

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This extended abstract discusses the key challenges associated with the Coniston development; particular emphasis is on engineering, operations, and project management aspects. The Coniston development will produce oil and gas from the Coniston and Novara hydrocarbon accumulations, located in permit WA-35-L, about 100 km north of Exmouth, in water depths of about 400 m. The Coniston development will consist of a sub-sea tieback to the existing Van Gogh sub-sea infrastructure and the Ningaloo Vision FPSO, currently producing from the Van Gogh Field. The project was sanctioned by Apache in 2011 and will be on production in 2Q 2014. To maximise reservoir exposure, multilateral wells will be drilled, and completed, employing inflow control devices of latest generation and monitoring production with the installation of tracers. To take advantage of project synergies, gas lift will be provided by Van Gogh wells through a dedicated gas production manifold. The Coniston development represents a remarkable multidisciplinary effort to develop a relatively small-size oil reservoir offshore WA. Some of the challenges achieved are the high oil viscosity, the complexity of the engineering to install new sub-sea infrastructure while minimising the impact on Van Gogh production and maximising the synergies of the tie back, the constant increase in drilling and facilities costs while maintaining attractive project economics, and the more stringent regulations environmental permits and the ability to optimise drilling and operation to achieve production as quickly as possible.

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43

Frost, E. L., and C. Kerans. "Platform-Margin Trajectory as a Control on Syndepositional Fracture Patterns, Canning Basin, Western Australia." Journal of Sedimentary Research 79, no. 2 (February 1, 2009): 44–55. http://dx.doi.org/10.2110/jsr.2009.014.

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44

Lu, Cheng L., Ruad Perera, Hussein Farrah, and Justin Waring. "Diabetes screening among active tuberculosis patients in Western Australia Tuberculosis Control Program using HbA1c." Internal Medicine Journal 49, no. 5 (May 2019): 630–33. http://dx.doi.org/10.1111/imj.14143.

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45

Rosenberg, Michael, Simone Pettigrew, Lisa Wood, Renee Ferguson, and Stephen Houghton. "Public support for tobacco control policy extensions in Western Australia: a cross-sectional study." BMJ Open 2, no. 2 (2012): e000784. http://dx.doi.org/10.1136/bmjopen-2011-000784.

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46

Thomson, PC. "The Effectiveness of Aerial Baiting for the Control of Dingoes in North-Western Australia." Wildlife Research 13, no. 2 (1986): 165. http://dx.doi.org/10.1071/wr9860165.

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Radiotracking was used to evaluate the effectiveness of aerial baiting in controlling populations of wild dingoes, Canisfamiliaris dingo. Four baitings were carried out in the West Pilbara region of Western Australia, using fresh-meat baits or factory-produced baits, poisoned with compound 1080. In one trial fresh-meat baits killed all 18 radio-collared dingoes; in another, factory baits killed 63% of radio-collared dingoes; in a third, 62% were killed by factory and fresh-meat baits. The factors considered to be most important in influencing the results of these trials included the number and distribution of baits dropped, bait type, and the age and social status of dingoes. Aerial baiting was shown to be an efficient and cost-effective dingo control technique under the conditions existing during the study. The long-term effects on the dingo population are discussed.

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47

Twigg, Laurie E., Tim Lowe, Michael Everett, and Gary Martin. "Feral pigs in north-western Australia: population recovery after 1080 baiting and further control." Wildlife Research 33, no. 5 (2006): 417. http://dx.doi.org/10.1071/wr05098.

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The recovery rate of a population of feral pigs (Sus scrofa) in the west Kimberley in north-western Australia was determined 12 months after a 1080 (sodium fluoroacetate)-baiting program. An estimated 56 pigs were present in the 15 000-ha study area in August 2005 compared with the prebaiting levels of 250–275 pigs in 2004 (11 pigs were known to be alive on site after the 2004 baiting). This represents a population recovery of 20–23% of the 2004 prebaiting levels. Although most pigs were in good body condition, environmental conditions were quite different between the two years. In 2005, some waterholes were dry or comprised mainly muddy water with little associated shelter for feral pigs. Consequently, and in contrast to 2004, no pigs were seen, and no bait take could be attributed to feral pigs, at the four resurveyed waterholes. Most pig sightings, and activity, were close to the Fitzroy River. Fermented wheat, with blood and bone, was used to determine areas of pig activity, and also used as prefeed before 1080-baiting commenced in 2005. Using the same bait stations as for 2004, plus additional stations established in new areas of pig activity, 1080-treated wheat and malted barley again proved highly effective in reducing pig numbers. The daily sighting index before and after 1080-baiting indicated that pig numbers had been reduced by ~90% within four days. Estimated pre- and postpoisoning density, with and without an edge effect, was 0.12–1.7 pigs km–2 and 0.05–0.67 pigs km–2. Pig tracks decreased to zero on the six track plots within two days of baiting, but the number of macropod tracks remained constant over the four-day baiting period. Thirty-eight poisoned pigs were found after 1080-baiting, and these were generally in clustered groups within 200 m of an active bait station. Poisoned juvenile pigs were again found closer to the active bait stations than were adult or subadult pigs (P < 0.05).

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48

Shaw, Kerrie A. "Australia?s role in promoting and supporting tuberculosis control in the Western Pacific Region." New South Wales Public Health Bulletin 24, no. 1 (2013): 43. http://dx.doi.org/10.1071/nb12119.

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49

Trolio, R., A. Bath, C. Gordon, R. Walker, and A. Wyber. "Operational management of Naegleria spp. in drinking water supplies in Western Australia." Water Supply 8, no. 2 (July 1, 2008): 207–15. http://dx.doi.org/10.2166/ws.2008.063.

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Naegleria fowleri is a free-living amoeboflagellate inhabiting soil and water that can cause Primary Amoebic Meningoencephalitis (PAM), a rare and sometimes fatal disease. In Australia, the amoeba typically inhabits drinking water supplies that have consistent water temperatures above 20°C. The incidence of PAM is widespread in Australia, with reports from South Australia, Western Australia, New South Wales and Queensland. One of the key issues for water utilities is the potential widespread distribution of N. fowleri and its ability to infect and re-infect drinking water supplies. In Western Australia, the majority of drinking water supplies are operated by the Water Corporation. This paper describes the conditions under which Naegleria spp. have been detected and describes the operational methods employed by the Water Corporation to control and mitigate Naegleria in public drinking water supplies.

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50

Loughman, R., EJ Speijers, GJ Thomas, and DJ Ballinger. "Chemical control of loose smut (Ustilago segetum var. tritici) of barley and the effects of cultivar and environment on disease incidence." Australian Journal of Experimental Agriculture 31, no. 3 (1991): 373. http://dx.doi.org/10.1071/ea9910373.

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The reasons for an increase in barley loose smut in high rainfall areas of Western Australia were investigated in field trials from 1986 to 1988 by examining the effects of environment, cultivar and adequacy of chemical control. Disease was 4-18 times greater in 2 seed lines produced in very high rainfall areas (>750 mm/year) compared with that produced in high (450-750 mm/year) or low (<325 mm/year) rainfall areas. The effectiveness of 5 fungicide seed treatments was assessed. No fungicide seed treatment controlled disease completely. Triadimenol at 225 mg a.i./kg and carboxin at 940 mg a.i./kg were most effective, providing 93-96% disease control. Treatments were significantly (P<0.01) less effective in high rainfall areas of Western Australia. Barley cultivars released recently in Western Australia were found to be susceptible to loose smut; we suggest that the replacement of the moderately resistant Dampier with these cultivars has contributed to an increased incidence of disease.

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