The prevalence and severity of diseases in the coastal soybean crop of New South Wales

1991 ◽  
Vol 31 (4) ◽  
pp. 545 ◽  
Author(s):  
GE Stovold ◽  
HJP Smith
Keyword(s):  
Pseudomonas Syringae ◽  
Xanthomonas Campestris ◽  
New South ◽  
Soybean Mosaic Virus ◽  
New South Wales ◽  
Coastal Region ◽  
Leaf Blight ◽  
Stem Rot ◽  
Phytophthora Megasperma ◽  
South Wales

Rainfed soybean (Glycine max) crops in the northern coastal region of New South Wales were surveyed from 1985 to 1987 for the prevalence and severity of diseases. Sixteen diseases were recorded over the 3 seasons, but only rust (Phakopsora pachyrhizi), black leaf blight (Arkoola nigra) and bacterial pustule (Xanthomonas campestris pv. glycines) were present each season. Rust was the most significant disease, infecting 50, 20 and 6% of crops in 1985, 1986 and 1987. The severity of rust was related to rainfall and temperature after flowering, with the most severe outbreaks in the higher rainfall area of the lower Richmond Valley. Black leaf blight was also significant and occurred in 39, 10 and 27% of crops in 1985, 1986 and 1987, but in most crops severity was low. The other diseases recorded were downy mildew (Peronospora manschurica), root and stem rot (Phytophthora megasperma f. sp. glycinea), stem canker (Rhizoctonia sp.), pod and stem blight (Phomopsis spp.), anthracnose (Colletotrichum spp.), seedling blight (Rhizoctonia sp.), stem rot (Phytophthora sp.), white mould (Sclerotinia sclerotiorum), flower blight (Botrytis cinerea), leaf spot (Phoma sp.), bacterial blight (Pseudomonas syringae pv. glycinea), mosaic (soybean mosaic virus) and orange bark (not identified). All of these diseases were generally of low prevalence and severity.

Prevalence of sclerotinia stem rot of canola in New South Wales

2003 ◽  
Vol 43 (2) ◽  
pp. 163 ◽  
Author(s):  
T. L. Hind ◽  
G. J. Ash ◽  
G. M. Murray
Keyword(s):  
Sclerotinia Sclerotiorum ◽  
New South ◽  
New South Wales ◽  
Stem Rot ◽  
Sclerotinia Stem Rot ◽  
Mean Values ◽  
Stem Infection ◽  
South Wales

Surveys of petal infestation and stem infection conducted in 1998, 1999 and 2000 indicated that Sclerotinia sclerotiorum poses a threat to the Australian canola industry. Inoculum was present throughout all canola-growing regions of New South Wales and the stem disease was widespread throughout southern New South Wales. Percentage petal infestation increased over the 3 years surveyed with values ranging from 0 to 99.4%. The highest petal infestation values were observed in 2000 (maximum of 99.4%, mean of 82.2%), with lower mean values in 1998 (38.4%) and 1999 (49.6%). Stem infection ranged from 0 to 37.5% and most fields had less than 10% stem infection. Stem rot incidence before harvest did not relate to percentage petal infestation determined during flowering. This indicated that factors other than percentage petal infestation were important in influencing stem rot incidence. While there was no relationship between percentage petal infestation and stem rot incidence, stem infection never occurred without prior petal infestation.

Heavy Metals in Sediments from the Central New South Wales Coastal Region

1978 ◽  
Vol 29 (6) ◽  
pp. 777 ◽  
Author(s):  
A de Forest ◽  
SP Murphy ◽  
RW Pettis
Keyword(s):  
Heavy Metals ◽  
Environmental Assessment ◽  
Analytical Methods ◽  
New South ◽  
New South Wales ◽  
Coastal Region ◽  
South Wales ◽  
Coastal Marine ◽  
Sea Bed ◽  
Shelf Region

Coastal marine sediments were collected from 20 oceanographic stations along the central New South Wales coastal region in September 1975. Chemical and physical properties of the sediments were determined to establish analytical methods suitable for use in environmental assessment studies. Statistical analyses of the data indicated that this region is typical of an unpolluted continental shelf region, in which the sea bed is mainly composed of sand with some silt.

Predation of livestock by wild dogs in eastern New South Wales.

1989 ◽  
Vol 11 (2) ◽  
pp. 61 ◽  
Author(s):  
PJS Fleming ◽  
TJ Korn
Keyword(s):  
New South ◽  
New South Wales ◽  
Coastal Region ◽  
North East ◽  
The North ◽  
East Region ◽  
South Wales ◽  
Control Programmes ◽  
June July ◽  
Wild Dogs

A monthly survey involving officers from eastern New South Wales Pastures Protection Boards was conducted over four years from 1982 to 1985. Information was collected on the number and type of livestock attacked within each board district, sightings of wild dogs, the number of wild dogs kiied, the method by which they were kiied and the locations at which the observations occurred. A total of 25,644 livestock animals were reported killed or wounded from four regions; the North-East Coastal Region, the North-East Tablelands Region, the Central-East Region and South-East Region. Sheep were the most commonly attacked domestic animals followed by cattle and goats. Regional differences were apparent in the type of livestock killed and seasonal patterns of predation were evident. We recommend that annual control programmes be brought forward from June/July to late April in order to precede predation peaks.

The development of lucerne with resistance to root rot in poorly aerated soils

1978 ◽  
Vol 18 (92) ◽  
pp. 434 ◽  
Author(s):  
VE Rogers ◽  
JAG Irwin ◽  
G Stovold
Keyword(s):  
Root Rot ◽  
New South ◽  
New South Wales ◽  
Mass Selection ◽  
Infested Soil ◽  
Yield Data ◽  
Phytophthora Megasperma ◽  
Phytophthora Root Rot ◽  
South Wales ◽  
Disease Free

Three cycles of recurrent mass selection in the field increased the level of resistance of lucerne (Medicago sativa) to Phytophthora root rot in irrigated heavy clay soil at Deniliquin, New South Wales. The breeding stocks were derived from Siro Peruvian and Lahontan. In each cycle between 45 and 80 vigorous, disease free plants were selected from soil naturally infested with Phytophthora megasperma var. sojae, and allowed to interpollinate. Yield data and ratings for root rot were obtained for half-sib families sown in rows. Progeny in cycle 1 were inoculated by isolates of P. megasperma from both New South Wales and Queensland, and there was substantial agreement between both sources in ratings for disease. In the third cycle of selection, progeny had a disease rating of 1.4 when inoculated with Queensland isolates of P. megasperma, compared with 3.6 and 4.1 for Hunter River and Siro Peruvian respectively (plants scored 1 or 2 considered resistant; 3, 4 or 5 susceptible). In a field trial, the percentage of disease-free plants after eight months of growth in infested soil was: cycle 3 selections, 44.4; Hunter River, 9.9; Siro Peruvian, 12.0. Cumulative dry matter production of the selections during that time was twice that of Hunter River.

Impact of tillage on lupin growth and the incidence of pathogenic fungi in southern New South Wales

2004 ◽  
Vol 44 (1) ◽  
pp. 53 ◽  
Author(s):  
S. Simpfendorfer ◽  
D. P. Heenan ◽  
J. A. Kirkegaard ◽  
K. D. Lindbeck ◽  
G. M. Murray
Keyword(s):  
New South ◽  
New South Wales ◽  
Pathogenic Fungi ◽  
Early Growth ◽  
Brown Spot ◽  
Stem Rot ◽  
Wheat Crop ◽  
Seedling Vigour ◽  
South Wales ◽  
Lower Biomass

Narrow-leafed lupins (Lupinus angustifolius) were grown in cultivated and direct-drilled plots at 4 field sites in southern New South Wales in 1998 to determine the effect of tillage on seedling vigour, disease and yield. The early growth of lupins in direct-drilled plots was reduced compared with seedlings in cultivated plots at 3 of the sites. However, the biomass of lupin plants in the direct-drilled treatments was 20% greater than in adjacent cultivated plots at harvest. The lower biomass in cultivated plots appeared to be primarily related to an increased incidence and severity of stem rot caused by Sclerotinia sclerotiorum. The increased stem rot in cultivated plots was also associated with a decline in yield of between 16 and 35% across the sites compared with direct-drilled plots. The direct-drilled treatment reduced the severity of brown spot, caused by Pleiochaeta setosa, at the 2 sites where stubble was retained from the previous wheat crop. These results suggest that direct drilling into cereal residue provides benefits over cultivation for the growth of lupins in southern New South Wales where crop infection by Sclerotinia and/or brown spot may be significant.

scholarly journals The Occurrence of Antibody to Bluetongue Virus in New South Wales. II. Coastal Region and Age Distribution Surveys

1988 ◽  
Vol 41 (4) ◽  
pp. 571 ◽  
Author(s):  
I R Littlejohns ◽  
RW Burton
Keyword(s):  
Bluetongue Virus ◽  
New South ◽  
New South Wales ◽  
Age Distribution ◽  
Coastal Region ◽  
Coastal Areas ◽  
South Wales

Three surveys of cattle for bluetongue (BLU) antibody were conducted over the years 1978-1980 in coastal areas of New South Wales. In each survey the samples were identified by age.

Pseudomonas oryzicola. [Distribution map].

1975 ◽  
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Geographical Distribution ◽  
Pseudomonas Syringae ◽  
New South ◽  
New South Wales ◽  
Distribution Map ◽  
South Wales ◽  
New Distribution

Abstract A new distribution map is provided for Pseudomonas oryzicola Klement. Hosts: Rice (Oryza sativa) and other Gramineae. Information is given on the geographical distribution in ASIA, China (E. & N.E.), Japan, AUSTRALASIA & OCEANIA, Australia (New South Wales), EUROPE, Hungary. This has since been incorporated into Map No. 336, Pseudomonas syringae pv. syringae van Hall.

Stem rot of rice in the Murrumbidgee Irrigation Area of New South Wales

1998 ◽  
Vol 27 (2) ◽  
pp. 80 ◽  
Author(s):  
A. Watson ◽  
M.J. Priest
Keyword(s):  
New South ◽  
New South Wales ◽  
Stem Rot ◽  
Irrigation Area ◽  
South Wales

Radiotherapy utilization in New South Wales from 1996 to 1998: Comment

2000 ◽  
Vol 44 (4) ◽  
pp. 483-484 ◽  
Author(s):  
JH Kearsley
Keyword(s):  
New South ◽  
New South Wales ◽  
South Wales
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