Weed Science Commons^™

Minimum Tillage Trials 1977, G. A. Pearce

Experimental Summaries - Plant Research

Minimum tillage trials 1977. Locations: Wongan Hills R.S., Avondale, Merredin, Mt. Barker, Esperance. Sites: At each station two sites were used, the first was under crop in 1976 and the trial will be repeated each year on the same area. The second site was under pasture in 1976 and was due to be cropped in 1977 as part of the normal district practice. The trials will be planted on a similar pasture site in 1978. Results. Apart from crop yields, weed counts (before spraying) and crop plant numbers were taken. Other measurements were made by various research officers and reported …

Fallow Re-Assessment (Merredin Research Station), D Tennant

Experimental Summaries - Plant Research

Fallow Re-assessment - (Merredin Research Station) - 72M29. Table 1: Growing season rainfall and yields at Merredin.

Phosphorus And Sulphur Group, J. W. Bowden, R J. Lunt, K F. Longbottom

Experimental Summaries - Plant Research

Long Term Trials Stocking and superphosphate trials - 66M30, 68BR7. Maintenance Phosphorus x Sulphur trials - 65A1, 65N5, 65C5, 69WH15, 68B1, 69AL3 and 67N05. Low Rainfall Crops and Pastures. Residual phosphorus trials - 76ES8, 75KA4, 75LG26 and 76NA5. Miscellaneous Cropping Trials. Rate of phosphorus on wheat - 77ES2, 77ME5, 77N03. N. P and seed rates on wheat - 77JE1. Row spacing, phosphorus and seed rate on wheat - 77ME6. Phosphorus on nitrogen build up - 77M033. Rate of super on old land lupins - 77A18 & 19, 77BA13 & 14, 77E20. Pasture Trials. Phosphorus and Sulphur on old land pasture …

Longevity Of Doublegee Seed Under Continuous Pasture, D J. Gilbey

Experimental Summaries - Plant Research

Locality: Avondale, Wongan Hills and Chapman Research Stations. Background. Since 1974 pegged areas on the three research stations have been under continuous pasture and have been sampled annually to study the fate of the viable doublegee seed population. Each site was sprayed for doublegee control in the growing season before the first samples were taken in late summer of 73/74. The sites were again sprayed in the 1974 growing season except for Wongan Hills. The Wongan Hills site was cropped in 1976 and no further data is available. 74C7, 75WH65, 75WH66, 76AL11, 76C9, 76C6, 77C3, 77GE9, 77LC26, 77ME28, 77M028, 77N034, …

Summary Of Experimental Results Field Trials 1977 - Silverleaf Nightshade - Blackberry, P Rutherford

Experimental Summaries - Plant Research

Silverleaf Nightshade: Rates of three herbicides on Silverleaf Nightshade (Yealering) - 76Na11. Herbicide screening trial on Silverleaf Nightshade (Yealering) - 76Na12. Herbicide screening trial on Silverleaf Nightshade (Yealering) - 77Na22. Blackberry: Non-hormone herbicide screening on Blackberry (Torbay) - 77AL17. Herbicide screening on Blackberry (Kent River) - 77AL18. Non-hormone herbicide screening on Blackberry (Balingup) - 77B8. Herbicide screening on Blackberry (Balingup) - 77B9.

Summary Of 1977 Field Trials, M. L. Poole

Experimental Summaries - Plant Research

Competition between wheat and annual ryegrass at six rates of seeding wheat, six ryegrass densities and five rates of nitrogen fertiliser (Wongan Hills Research Station) - 77WH6. Time of removal of annual ryegrass from a wheat crop (Wongan Hills Research Station)- 77WH7. Effect of different tillage systems on establishment and yield of wheat (Merredin Research Station) - 77M52. Rapeseed variety trial (Lancelin) - 77MO30. Shedding losses in rapeseed (Mount Barker Research Station) - 77MT25. Time of germination of ryegrass on wheat yield (Wongan Hills Research Station) - 77WH47. Sunflower agronomy trial (Bramley research Station) - 77B5. Other trials: 1. Co-operative …

Net Blotch Field Infection Studies, T N. Khan

Experimental Summaries - Plant Research

Object: To study (i) the possibility of field inoculation in developing net blotch epidemic, and (ii) the varietal differences in disease development amongst commercial cultivars. Experimenal: 2 x 2 x 2 factorial arrangement in split plot design with three replications at Avondale Research Station (77A29) and Newdegate Research Station (77N20). Treatments: Benlate spraying vs. no spraying (main plots), natural infection vs. field inoculation with conidial suspension (sub plots), and 5 varieties (sub sub plots) including a 1:1 mixture of varieties Beecher and Dampier. The benlate spray is known to have no effect of net blotch and it was applied mainly …

Planting Systems Investigations, D Tennant

Experimental Summaries - Plant Research

Planting systems investigation. l. Planting depths. 2. Soil water (0-lOcm) near planting. 3. Mineralised N near planting. Planting systems investigation. Two trials were initiated on each of five Research Stations in collaboration with G.A. Pearce and J.E. Holmes. Details in respect of treatments, operations, fertilisers, rainfall, yields and weed populations are provided by these officers in their respective reports. For the purposes of this report, attention is drawn to two findings of a preliminary study of similar planting systems in 1976. TABLE 1. DepthS of planting (cm). Means of 40 to 80 estimates - 77A16, 77E18, 77M13, 77MT15, 77WH17. TABLE …

Barley Yellow Dwarf Virus - Effect On Yield Of Clipper Barley, G D. Mclean, T N. Khan

Experimental Summaries - Plant Research

Barley Yellow Dwarf Virus - Effect on Yield of Clipper Barley 77B4, 77MN6. Location: Manjimup Research Station, Bramley Research Station.

Ryegrass Disease Could Spread, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

The disease annual ryegrass toxicity kills sheep and cattle grazing pastures which contain infected annual ryegrass. In Western Australia the first confirmed outbreak was in 1968 in the Gnowangerup area.

The disease has noe spread over a range of 450 kilometres and with a total area of perhaps 100 000 hectares. because annual ryegrass is the major sown pasture grass in W.A. the disease could spread throughout the South-West.

There are some precautions that can be taken.

Lupin Cultivar Comparison, G H. Walton

Experimental Summaries - Plant Research

1. Lupin cultivar comparison - L. cosentinii cv. CB49 and L. angustifo1ius cv Marri - 77A20. - L. albus cv Ultra and L. angustifolius cultivars, BRAMLEY R.S. - 77B1(A), 77B1(B). 2. Field pea cultivar comparison - AVONDALE R.S. - 77A22. 3. Lupin and cereal mixtures - 77MO19, 4. Undersowing of subclover pasture - 77NA25. Plant competition in mixtures of lupin and cereal (Lancelin) - 77MO19. Undersowing lupin and wheat crops with sub. clover (Cuballing) - 77NA25. Polycultures of wheat and lupin (Crossman) - 77NA26, 77MO18. Expt no: 76JE7, 77A20, 77A21, 77A22, 77B1(A), 77B1(B), 77GE30, 77MO17, 77MO18, 77MO19, 77NA25, 77NA26, 77TS21.

Long Term Rotation Trials 1977, I Rowland

Experimental Summaries - Plant Research

W56H, 66M29, 67C13, 67N4, 68E5, 68SG5,73SG16.

Lupins, Barley, Clover.

Septoria Diseases Of Wheat, A. G. P. Brown

Experimental Summaries - Plant Research

The Effect of Septoria nodorum on Yield of 125 Wheat Cultivars. The aim of this experiment was as described for that of 1976. There were some modifications to the treatments which were as follows: (a) Most of the cultivars were 'new' and (b) Three levels of Septoria attack were set up:- 1. Low: cover sprayed throughout the season with the fungicide Difolatan. 2. Moderate: inoculated with Septoria three times, followed at heading out by cover spraying with Difolatan. 3. Severe: inoculated four times no fungicide. The 125 entries were sown as hill plots with the three Septoria environments as main …

Miscellaneous Crop Trials - High Rainfall Districts, M. W. Perry

Experimental Summaries - Plant Research

1. High Rainfall Miscellaneous Crop Trials - 77BU3, 77BU11, 77DE2. 77HA1, 77HA6, 77MA2, 2. Standard Alternative Crop Trials - 77BA16, 77MT20, 77NA27, 77NA28. 3. L. cosentinii Establishment and Regeneration - 77MO20, 77GE31, 77TS22. Plant density x time of planting on L. Consentinii - 77BA15. 4. L. consentinii seeding rates - 77BR11. 5. Seeding Rates for High Rainfall Cereals - 77BR11.

Pasture Species Investigations - High Rainfall Area 1976, D A. Nicholas

Experimental Summaries - Plant Research

Contents Clover cultivar grazing trial (N. Bannister) - NOT in this document. Perennial versus annual grass grazing trial (Manjimup Research Station) - 72MNS. Pasture types x stocking rate trial (Denmark Agricultural High School) - 72D1. Clover cultivar evaluation trial (Denmark Research Station) - 8. The final yield sampling in December was not obtained through cattle having broken into the area. Clover cultivar evaluation trial (Karridale) - 77BU10. Clover cultivar evaluation trial (Denmark Research Station) - 77D5, 77DF, Clover cultivar evaluation trial (Wellstead) - 77AL22. Clover cultivar Evaluation Trials. Location: Esperance District - 77ES27 - R.L. Stead, Dalgup; 77ES28 - E.L.D., …

Herbicide Screening. Soursob Control In Cereal Crop., J. Peirce

Experimental Summaries - Plant Research

Herbicide screening - soursob control in cereal crop (Beverley). Soursob control in cereals (Yelbeni, Doodlakine). Chemical control of Oxalis purpurea L. (Beverley). Chemical control of Doveweed (Eremocarpus setigerus Benth.) - Beverley.

Rye Grass Control, J Holmes

Experimental Summaries - Plant Research

Rye grass control: Time of spraying two chemicals. Location: Katanning property, Mr Schaffer. Time of Spraying Hoegrass - 77LG28. Location: Newdegate Research Station. Annual rye grass control. Time of Spraying Two Herbicides - 77Mo32. Location: T. Reynolds, North Miling. Rates and Time of Spraying Hoegrass - 77Na50. Location: J. Lynch, Hyden. Time of Spraying Two Herbicides - 77Es35. Location: R. Kirby, Salmon Gums. Efficiency of Ryegrass Herbicides - 77WZ1. Location: Newdegate Research Station. Aerial spraying trial - ryegrass control - 77No44. Location at property of M. Lourdes, Minivale. Aerial spraying ryegrass - 77Na60. Location: B. Ballard, Noman Lake. Ryegrass control …

Field Crop And Pasture Experiments, P. Mcr. Wood

Experimental Summaries - Plant Research

Black spot of peas (Ascochyta I Mycosphaerella complex) Sclerotinia and Phomopsis infection of lupins (Mount Barker Research Station) - 77MT41. Resistance of lupins to Phomopsis - Avondale, Mt. Barker, Wongan Hills.

Take-All Of Cereals And Cereal Seed Dressings, G D. Macnish

Experimental Summaries - Plant Research

Take-all of cereals. Take-all surveys. Effect of nitrogen sources on take-all: 76LG25 Wheat, 77MT19 Wheat, 77JE31 Barley, 77MT17 Barley, 77LG20 Oats, 77JE5 Wheat, 77LG6 Wheat, 77E4 Wheat, 77ES6 Wheat, 77GE10 Wheat. Effect of rates of (NH4)2 SO4 and Na NO3 on take-all - 77E6 Wheat, 77ES Wheat. Effect of rates of (NH4)2 SO4 on take-all - 77LG7 Wheat, 77JE6 Wheat. Soil pH and take-all - 77LG25 Cleaning crops and take-all control - 76E6, 76N5, 76M47, 76A7, 76LG27. Spray-fallow and time of planting - 76GE35 9 76LG26, 76LG26, 76LG38. Effect of rates of sowing on take-all - 77JE7. Long term rotations …

Investigations Of Ryegrass Toxicity, B A. Stynes

Experimental Summaries - Plant Research

Investigations of ryeqrass toxicity. Residual effect of nematicide on ryegrass toxicity a season after treatment (Katanning, Gnowangerup) - 76KA30. Survival of Anguina sp. and emergence from galls (Gnowangerup) - 76KA28. Effect of nematicides on the development of toxicity in ryegrass pasture (Gnowangerup) - 77KA22. Table 1. Effect of phenamiphos on the development of nematode and bacterial galls in ryegrass pasture. Effect of burning, cropping and cultivation on ryegrass toxicity (Gnowangerup) - 77KA21. Table 1. The effect of cropping and cultivation on the number of nematode and bacterial galls per gram of threshed ryegrass seed. Table 2. The effect of duration …

Nitrogenous Fertilisers For Cereals - Results From 1977 Trials On Wheat, Oats And Barley, M. G. Mason

Experimental Summaries - Plant Research

Rates of Nitrogen on Wheat, Oats and Barley - Soil Test. In this, the third year of this programme, 44 sites were selected and soil sampled during February - March. Thirty seven of these trials consisted of four replications on wheat only and the other seven consisted of three replications on wheat, oats and barley. All reps were soil sampled separately. In each rep. of the 37 trials, 20 samples were taken to 10 cm depth with pogo stick samplers. In the. other seven trials 50 samples per rep. were taken. In addition, from three holes at random across each …

Bulletin 3148 - Weeds In Lawns, G. A. Pearce, R. D. Royce

Bulletins - 3000 - 3999

IDENTIFICATION OF WEEDS IN LAWNS

Accurate identification of weeds is the first principle of weed control with modern chemicals. This is as true for weeds in lawns as any other weeds.

THE CONTROL OF WEEDS IN LAWNS

Most lawns have weeds growing in them at some time during the year and in some lawns weed control becomes a major problem.

Bulletin No 3993 - The Control Of Saffron Thistle, G. A. Pearce

Bulletins - 3000 - 3999

Saffron thistle is a primary noxious weed and is widespread throughout the drier parts of Western Australia. When growing in pasture its prickly growth habit discourages animals from grazing amongst it so that its presence results in the loss of feed. In crops it reduces yield and results in dockage when seed is found in harvested grain.

1976 South West Sub Clover Root Rot - White Rust On Rapeseed, M J. Barbetti

Experimental Summaries - Plant Research

1. South west sub clover root rot - 1975 cultivation experiments - To investigate the effect of time of cultivation, and nitrogen application, upon the incidence and severity of both tap and lateral root rot of subterranean clover. Localities - Karridale (76BU1), Manjimup (75MA1), and Walpole (75DE1). 2. South West sub clover root rot - 1976 cultivation experiments - Localities - Karridale (75BU11), Walpole (75DE12), and Narrikup (75AL36). 3. White rust on rapeseed - Aims - To examine the role of white rust seed infection in disease aetiology and epidemiology, both in an area containing white rust infected trash and …

1976 Early Crossbreds, C. M. Francis

Experimental Summaries - Plant Research

TABLE 3: Dry Matter Production Denmark 1976 Variety - kgs/ha* 210.10.26.1 (Bacchus x Daliak) - 5498 Mt. Barker - 5362 MBD 21.1 (Midland Bx Daliak) - 5166 Woogenellup - 5142 MBD 25.2 (Midland B x Daliak) - 4916 MBD 30.1 (Midland B x Daliak) - 4896 Daliak - 4654 Seaton Park - 4008 * Total of 5 cuts LSD 5% = 420 kg. Days to first flower 1976* Variety - Mt Barker. Woogenellup. 210.10.26.1. MBD 21.2. MBD 30.1. Dinninup. MBD 25.2. Seaton Park. Daliak. * Planting dates Denmark 25/3/76 Perth 3/5/76 A) 1967 Series Crossbreds. 1976 was a drought season …

1976 Inoculation - Clover Scorch Screening - Glasshouse - Nodulation Of Pastures, D L. Chatel

Experimental Summaries - Plant Research

1. Inoculation. 1.1 Lupin inoculation. 1.2 Pea inoculation. 1.3 Clover inoculation. 2 Clover scorch screening. 3. Appendix 3.1 Glasshouse effectiveness. 3.2 Nodulation of Pastures - Denmark Research Station. LIST OF EXPERIMENTS 1. The effect of superphosphate on the nodulation of Unicrop lupins drilled with the fertilizer - Wandering. 2. The effect of superphosphate on the nodulation of Unicrop lupins drilled with the fertilizer - Lancelin. 3. The effect of manganese superphosphate on the nodulation of/ Unicrop lupins drilled with the fertilizer - Lancelin. 4. The effect of superphosphate on the nodulation of Unicrop lupins drilled with the fertilizer - Wongan …

Protecting Agriculture In 1976 : Three Sides Of An Apb Campaign, Department Of Agriculture, Western Australia

Journal of the Department of Agriculture, Western Australia, Series 4

A quick look at three areas in which the A.P.B. are working with landholders to protect Western Australia from invasion.

Protecting our agriculture and wildlife is not only the APB's job— it is very much the community's job also. Any suspect birds or plants must be reported immediately to the Agriculture Protection Board.

A Survey Of Shearing Times, B R. Beetson

Journal of the Department of Agriculture, Western Australia, Series 4

When do farmers in W.A. shear their sheep, and why do they selest the times they do?

A Department of Agriculture survey attempted to answer these questions, which have important implications for the wool industry.

Wild Oats In W.A, J G. Paterson

Journal of the Department of Agriculture, Western Australia, Series 4

A summary of background information, recent research findings and current recommendations for the control of wild oats in Western Australia.

1976 Trace Element Nutrition, J W. Gartrell

Experimental Summaries - Plant Research

Contents: 1.0 Copper l,l Long Term Copper Trial, Newdegate 66Nl4 1.2 Residual copper (i) on wheat, Esperance Downs. (ii) on lucerne, Esperance Downs. (iii) on sheep and pasture, Bramley. 1.3 Copper for wheat on new land (i) sources, methods, granularity, Lake Grace. (ii) drilled vs topdressed, Newdegate. 1.4 Tissue tests for copper status of wheat. 1.5 Use of soil test for copper. 2.0. Manganese. 2.1 Residual manganese for sweet narrow leafed lupins - Badgingarra.