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Glean Use On Drier Alkaline Soils, Terry Piper, Patrick Piggott

Experimental Summaries - Plant Research

Trial 86SG25 - Salmon Gums Research Station

There was no apparent evidence of chlorsulfuron carryover at either site, although the medic stand was visually assessed as thinned on 19/8/1987. In the absence of grazing pressure however, the remaining plants compensated by 25/9/1987.

Trial 87WH64 : The effects of low levels of Glean on lupins, in the presence of Hoegrass or Fusilade. Wongan Hills Research Station

This trial is a duplicate of 86WH53 and the results can be considered together.

Statistical analysis has shown a very highly significant effect of Glean on lupin growth in 1987, and on seed yield in …

Evaluation Of Risk Factors Leading To Soil Destabilisation On The South Coastal Sandplain Of Western Australia, R V R Gwynn, P A. Findlater, J R. Edwards

Resource management technical reports

The problems of wind erosion in part of the south coast of Western Australian sandplain area were described previously (Gorddard et al, 1981) with 7.3 per cent of cleared and 18.3 per cent of the cropped area showing evidence of sand blasting. Department of Agriculture trials have shown that the loss of the top four millimetres of top soil from pastured paddocks can reduce following crop yields by up to 20 per cent (Marsh and Carter, 1983). Animal production problems associated with wind erosion of soils have not been quantified, but a number of problems such as reduced carrying capacity …

The Land Resources And Carrying Capacity Of Gascoyne Locations 228 And 229, North Of Carnarvon, Western Australia, M R. Wells, Veronica P M Oma, Alexander Mcrae Holm

Resource management technical reports

No abstract provided.

Post Emergence Weed Control In Lupins., R. Madin, J. Buckley

Experimental Summaries - Plant Research

As a general assessment in can be said that Tigrex is a safe and efficient herbicide for control of radish in wheat. Brodal alone was generally unsatisfactory for radish control. While Diuron + Brodal was safe and efficient, Ally and Brodal should not be used together. Diuron + MCPA gave poorer control than one would normally expect.
87WH67

Control Of Prickly Saltwort (Salsola Kali) In Pasture., G. Fleay, R. Ramm

Experimental Summaries - Plant Research

Trial 87LG65

Glean post-em @ 10 and 15 g/ha gave good control.

A later trial gave good control with Garlon 4800 or 2,4-D amine when sheep grazed the weed after treatment. Considerable pasture damage would be done with all chemicals during the growing season.

Isoproturon Evaluation - Timing Of Application On Efficacy And Crop Damage., R. Madin, J. Buckley

Experimental Summaries - Plant Research

The trial was effectively a tolerance trial. Best overall weed control was achieved with Glean and the higher rates of Isoproturon which in turn gave best control as a pre-plant, incorporated treatment.
87A23, 87WH54

Manipulation Of The Soil Seed Reserves Of Bromus Diandrus And B. Rigidus By Enhancing The Breakdown In Seed Dormancy., A H. Cheam

Experimental Summaries - Plant Research

Location: South Perth Field Plots

Previous studies on the seed bank of Bromus diandrus indicated that shallow burial of newly shed seeds enhanced the breakdown in seed dormancy over the summer period. To bury the Bromus seeds one practical approach is to introduce sheep into the paddock.
This study is a repeat of the previous work but included B. rigidus, another species of Bromus, that is commonly ground growing in association with B. diandrus.
Location: South Perth Field Plots.

Matricaria/Globe Chamomile (Pentzia Globifera) Density And Seed Production, J. Dodd

Experimental Summaries - Plant Research

Location: Muckinbudin.

Preliminary measurement of plant density and seed production were made in November 1987 at two infested properties near Muckinbudin.

Vermin fence herbicide trials (Established by J. R. Peirce 85ME63, 65, 68, 69, 70)

During assessment of the vermin fence herbicide trials in November 1987, certain plants in the sprayed plots were noted as being undamaged, even by the highest rates of herbicides used.

Wild Oat Control With Hoegrass With And Without Oil, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Trial 87NO08
All treatments except Combine + Oil yielded significantly better than the control. Control of wild oats with Grasp was superior to many other treatments and this was reflected in the yield.

Trial 87N009
All treatments yielded significantly better than the control however there was no difference between herbicides, rates of use or additives. The exception being 0.75 L Hoegrass +WA which yielded significantly less than Grasp + oil.

Radish Control In Lupins - Brodal., D J. Gilbey

Experimental Summaries - Plant Research

To study the effect of Brodal on lupins and radish.
87GE84, 87TS35, 87MO52, 87NO91, 86MO33.

Control Of Doublegee In Sub. Clover And Medic Pastures., P. Stewart, L. Mann

Experimental Summaries - Plant Research

Trial 87ME61, 87ME68, 87WH49, 87ES39, 87NO80(B), 87NO80, 87WH67.

Doublegees in pasture are a major concern of many farmers in most of the agricultural areas in Western Australia. In pasture, doublegees tend to compete strongly the first year after crop and then decline in subsequent years. When cropped, doublegees again appear in large numbers. Unfortunately, the WADA recommendation for doublegee control in pasture of Tribunil at 850 g/ha is now very expensive at $17/ha. A possible alternative is 2,4-D amine, but medics are very sensitive to this. 2,4-DB is another recommendation, but this tends to have low efficacy against doublegees and …

Tolerance Of Cereal Varieties To Hoegrass + Oil, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Almost invariably, Hoegrass applied to wheat and barley varieties reduced crop vigour assessed ten weeks after spraying.
87A34(1)

Control Of Capeweed Prior To Sowing Crop., J. R. Pierce, B. J. Rayner

Experimental Summaries - Plant Research

All treatments gave significant yield benefits over the untreated. Mixtures containing diuron did not cause any significant crop damage although yields on three of the treatments using 1.5 L/ha were low despite the good weed control.
87WH59

Tolerance Of Ceral Varieties To Grasp, R. Madin, J. Buckley

Experimental Summaries - Plant Research

The site remained mostly weed free throughout the season apart from some invasion by crassula spp. between plots. Some site variation was reflected in yield variation between replicates. The effects of Grasp on all varieties of wheat and Schooner barley were evident soon after spraying.
87A34 (2)

Crop Establishment, R. Madin, J. Buckley

Experimental Summaries - Plant Research

Trial effect of timing of Roundup CT and Spray.Seed application and cultivation on crop establishment and growth.
87WH53, 87NO85

The general tendency was for yield to decrease as the time to seeding after Spray.Seed application increased.
For trial 87NO85 the site was a 'problem', heavy textured soil where crop emergence problems following glyphosate had been experienced in previous years.

Crop establishment - time of seeding following herbicide application.
87A37

Use of a knockdown herbicide greatly increased yield when compared to the unsprayed treatments. Further work is required to resolve contrasting results.

Evaluation Of Additives With Bracken Herbicides Applied To Boomsprayer., R. Madin, J. Buckley

Experimental Summaries - Plant Research

Treatments were applied in December 1987. Height of the Bracken made application by boom difficult due to inability to adequately raise the boom to give clearance. Some brushing of the Bracken with the boom was unavoidable. Assessment of the trial will be made in March 1988.

Effects Of Residue Levels Of Glean On Lupin Growth, And Possible Synergism By Hoegrass., Terry Piper, Patrick Pigott

Experimental Summaries - Plant Research

Trial 87PE37

This trial was conducted to confirm the results of 86WH53 and 87WH64. The trial commenced in September and in a glasshouse thus temperatures were higher and growth faster then in the field trials.
There are no significant effects of soil applied Glean or Hoegrass, and no interaction between the two herbicides.
In contrast, there is a very significant stunting of plants by Glean applied post emergence if Hoegrass is co-applied, but not by Glean alone.

Rates Of Ally And Glean For Cape Tulip Control., R. Madin, J. Buckley

Experimental Summaries - Plant Research

Evaluation in 1987 indicated that Ally and Glean at all rates gave 100% control of Cape Tulip at York with minimal pasture affect on species other than clover.
87NO110, 87NO110(1), 87NO110(2), 87NO110(3)

Brome Grass Control In Wheat, G. S. Gill, R. L. Thomas

Experimental Summaries - Plant Research

Brome grass control in wheat
87GE29, 87WH9

Competition between wheat and mixtures of brome grass and doublegees.
87GE30

Chemical Control Of Four O'Clock (Oxalis Purpurea) And Narrow Leaf Oxalis (Oxalis Glabra)., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 97NO95

Control of small leaved Oxalis - Logran gave reasonable control. Post seeding treatments using Isoproturon gave very poor control.

Control of Oxalis purpurea (Four O'clock) - Logran either as a single application or a mixture with Isoproturon gave best control.

Control of clover - Isoproturon 4 L (post), Ally and Logran (40 g) gave 100% control.

Control of erodium - Logran gave very poor control.

Control of grasses - Isoproturon 2 & 4 Li/ha post emergent gave the best control of grasses.

Control of Four O'clock in cereals - Crop yield - Treatments using single doses of Isoproturon …

The Demography Of Doublegee. Ecological Studies On Arum Lily., F. D. Panetta

Experimental Summaries - Plant Research

3.1 Growth of doublegees under summer irrigation. (87A40)

The weevil, Perapion antiquum is a potential biological control agent of doublegee. However, it exhibits large population crashes during the summer months in the summer-dry areas of the Western Caped of South Africa, where it is native. It has been suggested that one means of successfully establishing Perapion in Western Australia could be to maintain populations in 'oases' over the summer months. The aim of this experiment was to determine how readily doublegee could be maintained in a non-senescent phase under irrigated and shaded conditions.

3.2 Doublegee demography in cereal crops (87GE30) …

Control Of Soursob (Oxalis Pres-Caprae) In Cereals, J. R. Pierce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87NO107

Plant counts for soursob and Four O'clock will be more accurate when counts taken after the break of 1988 season to determine the bulb production from last season.

Ally gave good control of doublegee. Isoproturon or mixtures with Isoproturon also gave good doublegee control. Logran & Glean were weak on doublegee.

Fisheries Report No 76 - The Australian Herring Fishery In Western Australia, 1973 - 1985, Michael H. Walker, Diane P. Clarke

Fisheries Research Reports

The Australian herring (Arripis georgianus) ts a pelagic, largely marine, species which is relatively abundant in the south western waters of Western Australia. It is a close relative of the Australian salmon with a similar life history and habits which includes migrating for the purpose of spawning. The Australian herring is keenly sought both as a food fish and for bait. This report documents the fishery for this species as it has developed during the period 1973 to 1985.

Fisheries Report No 75 - The Commercial Shark Fishery In Temperate Waters Of Western Australia, D. I. Heald

Fisheries Research Reports

The Western Australian-based mixed gear fishery for edible shark generally operates from Geraldton to Esperance in waters shallower than 10 fm to a maximum depth of 100 fm. In 1983/84, the total catch was 1262 tonnes live weight. The total shark catch was taken by 158 gillnet boats, 45 longline boats and 152 handline boats. However, nearly two thirds (62%) of these boats caught 1 tonne or less in 1983/84 and were assumed to rely more heavily on other target fisheries than shark.

Of the 20 or so species of shark caught in W.A., 3 species together comprise two thirds …

An Inventory And Condition Survey Of Rangelands In The Carnarvon Basin, Western Australia, A L. Payne, G F. Spencer, P J. Curry

Technical Bulletins

The inventory and condition survey of rangelands in the Carnarvon Basin, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1980 and 1982, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed covers …

Fisheries Report No 77 - The Western Rock Lobster Fishery 1983 - 1984, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced 10,576 tonnes in 1983/84, out of a total Australian rock lobster catch, with the exception of Queensland, of 15,777 tonnes. The fishery is governed by a complex set of regulations which are designed to limit the total fishing effort to acceptable levels and to enforce a legal minimum size (Bowen 1971, Hancock 1981). Thus, it is important to monitor the state of the fishery constantly both to ensure that the …

Fisheries Report No 79 - The Western Rock Lobster Fishery 1984 - 1985, R. S. Brown, E. H. Barker

Fisheries Research Reports

The fishery for the western rock lobster Panulirus cygnus is one of the most important single fisheries in Australia and an important export earner for the State. Western Australia produced 8,966 tonnes in 1984/85, out of a total Australian rock lobster catch (excluding New South Wales and Queensland) of 13,651 tonnes. The fishery is governed by a complex set of regulations which are designed to limit the total fishing effort to exceptable levels and to enforce a legal minimum size (Bowen 1971, Hancock 1981). Thus, it is important to monitor the state of the fishery constantly both to ensure that …

Fisheries Report No 78 - A Re-Examination Of The Methods Used For Handling Undersize Western Rock Lobsters, R. S. Brown, C J. Dibden

Fisheries Research Reports

The fishery for the western rock lobster, Panulirus cygnus (George) is the most important single species fishery in Australia, and one of the major rock lobster fisheries of the world, with catches over the last ten years (1973 to 1983) averaging approximately 9.8 million kg annually.

The continuing success of the fishery can be attributed mainly to effective management, which involves a complex system of regulations, the majority of which were introduced in 1963 and which are constantly being revised to accommodate changes in the fishery. One important piece of legislation, effective from 17 December 1965, was the introduction of …

Control Of Four O'Clock (Oxalis Purpurea) In Cereals., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial 87KA85

Because of the late dry season, yields were below expected. Under these conditions there were high visual crop damages recorded early after the treatments applied.

Chemical Control Of Skeleton Weed., J. R. Peirce, B. J. Rayner

Experimental Summaries - Plant Research

Trial PE17

Tordon 50 D & Lontrel L appear to be the only chemicals that will give effective reduction in the density of skeleton weed. However both these chemicals also removed all other broadleaved weeds present (capeweed, clover and flatweed), leaving the treated areas grass dominant.