Agronomy and Crop Sciences Commons^™

Biological Control Of Insects On The Ord. 1. Production Of Sitotroga Cerealella For Mass Rearing Of Trichogramma Wasps, M Grimm, P. J. T. Lawrence

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

Department of Agriculture entomologists have developed a technique for the production and collection of eggs of the Angoumois grain moth (Sitotroga cerealella) for mass-rearing the parasitic waspTrichogramma pretiosum Riley.

Trichogramma is giving promising results in trials aimed at developing biological control of insect pests in the Ord River Irrigation Area.

Lupinosis And Rates Of Stocking Of Lupin Stubbles, K P. Croker, J. G. Allen, C. R. Lester, R. B. Guthrie

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

Lupin stubbles provide valuable summer sheep feed but under some conditions the fungus Phomopsis rossiana (for which lupins are the host plant) produces a toxin that causes lupinosis. Results from research at Badaingarra Research Station over the 1973-74 and 1974- 75 summers have shown that sheep liver damage associated with lupin stubble grazing is likely to be more severe at high than low stocking rates.

Nitrogenous Fertilisers For Cereal Production, M G. Mason

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

Among the many factors influencing crop response to nitrogen applications, the most important are the season, soil type, paddock history, time of application and source of nitrogen. Before deciding whether to use nitrogen on a cereal crop, which source to use and at what rate, the farmer needs some understanding of how these factors work.

Lupin Breeding In Western Australia : The Narrow-Leaf Lupin (Lupinus Angustifolius), John Sylvester Gladstones

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

Over the past seven years the narrow-leafed lupin (Lupinus angustifolius) has become a significant crop plant in Western Australia.

The present crop varieties are the result of a long-term breeding programme started in 1954 with the aim of producing a broad-acre crop from a plant well adapted to our light soils but with a number of characteristics which precluded its use for cropping.

To an original sweet narrowleafed lupin, soft-seededness, nonshattering pods, early flowering and a distinctive appearance to distinguish it from bitter types were progressively added.

The author of this article, Dr. J. S. Gladstones, began lupin breeding at …

Summary Of 1975 Field Experiments With Advisers: "Rape Blackleg Disease Fungicide Trials", M J. Barbetti

Experimental Summaries - Plant Research

During 1973 and 1974 a large range of fungicide spray and seed treatment schedules were tested. The 1973 results were, on the whole, not very encouraging, but the very early post-germination spray, two weeks after germination, did indicate a possible means of control. In view of the 1973 results, in the 1974 trials fungicidal sprays were applied early, and a new method of application of fungicide to the seed, known as "prilling" was used. Using fungicide seed prills and seedless fungicide prills the idea was to have the fungicide mixed with materials which dispersed upon wetting, so releasing and making …

Summary Of Trial Results - 1975, N. R. Mckeown

Experimental Summaries - Plant Research

1. From September 1971 to late August 1974 there was a mean reduction of legume content in the medic pastures from 40 per cent to 22.0 per cent but the reduction at 7.4 sh/ha was to 31 per cent. The drop in woolly clover content on the volunteer pastures was closely similar. 2. In 1972, at 7.4 sheep/ha a difference in body weight of 7-9 kg rapidly developed in favour of sheep grazing barrel medic compared with sheep on volunteer pasture. This difference was maintained consistently throughout the trial. At lower stocking rates the differences were smaller and less consistent. …

Evaluation Of The Systemic Nematicide Phenamiphos To Control The Nematode Anguina Sp In Toxic Ryegrass Pasture, B A. Stynes

Experimental Summaries - Plant Research

Field trials done in 1974 showed that phenamiphos could be used to control Anguina sp. and suggested that low rates may be effective with critical timing of applications. These possibilities were investigated in 1975. Locality - Katanning - F. Quartermaine and c. Butterworth. Gnowangerup - J. Griffith. Tables 1 and 2 show the absolute levels of nematodes in ryegrass seed and the density of nematodes per unit area of pasture after treatment with phenamiphos. All rates of nematicide reduced the level and density of nematodes; the highest rate being slightly more effective. The spray schedule including sprays in July and …

Summary Of 1974 Weed Control In Lupin Evaluations, J. G. Allen

Experimental Summaries - Plant Research

Lupin Trials 1974 1. Herbicides x Depth of Seeding - There is no evidence of a herbicide x depth of seeding interaction in lupin plant numbers, at either Broomehill or Eradu. The lupin plants on the shallow sown plots were reported to be more effected by herbicides than on the deeper sown plots at Eradu. It is suggested that shallow seeding may be a factor in predisposing lupin crops to simazine damage particularly on sandy soils, however it has not been possible to demonstrate such on effect. 2. Herbicides x Time of Seeding - At two sites (Myrup, Namban) there …

Reduction Soursob Twelve Months After Treaqtment In Cereal Crops, J R. Peirce

Experimental Summaries - Plant Research

Locations - Dangin / midstyle variety of soursob, Greenough / midstyle variety, Kalgoorlie Mt Monger Station chemical control of matriciaria, Northam - common short-style variety, Quairading ryegrass control in cereals, Wagin / midstyled variety of soursob in cereals.

1975 Evaluation Of New Subterranean Clover Cultivars, C. M. Francis

Experimental Summaries - Plant Research

This year's trials have added little to the data already accumulated on the corssbreds 175,1 and 239.2 (Table 1). Higher seed yields at Merredin would have included some hard seed from the previous year. The lack of reliable data from the May sowings due to poor viability of some seed lines (including 175 and 239) grown at Medina was unfortunate. Data from Lake King is not yet available. Geraldton performed surprisingly well in the late sowings despite overall low seed yields. With late sowing its flowering date was within a few days of the crossbreds so that late sowing appears …

1975 Soil Fertility - Grain Lupins - Long Term Rotation Trials, Ian Rowland

Experimental Summaries - Plant Research

Soil Fertility - Grain Lupins 75A4, 75BA6, 75E4, 75GE9, 75JE9, 75MT6, 75N028, 75WH9. Long Term. Rotation Trials W56H, 66M29, 67Cl3, 67N4, 68E5, 68SG5, 69GE20, 73SG16. Soil Fertility - Grain Lupins Use of the stage 4 lupin variety trials to assess the effect of a year of sweet grain lupins on a following cereal crop was continued. The 1974 variety trials contained a number of lupin varieties randomised with two standard wheat varieties. Also at two times of planting. Eight trials were selected: 74GE26 at Morawa, 74BA7 at Badgingarra, 74WH8 at Wongan Hills, 74N08 at Bolgart, 74A8 at Beverley, 74MT8 at …

1975 Wild Oat Genotype X Environment Interaction, J Patterson

Experimental Summaries - Plant Research

To investigate the interrelationships between wild oat (Avena sativa; fatua form) genotypes, herbicide treatment and time of application. Method: Split plot glasshouse (Forrestfield) experiment Reps (3) - plus three internal reps. Genotypes (5) - selected from north to south of southwest Western Australia Herbicides (4) - Avenge, S29761, Neoban, Water (Control) Times (6) - Average of 1 to 6 leaf stage Main plots were times and herbicides. Results: The following parameters were measured. .Growth stage at each time of application (number of leaves) .Height at each time of application .Date of full head emergence .Dry weight at full head emergence …

Growing Sunflowers In South-Western Australia, M L. Poole

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

The oil produced from sunflowers falls into the "polyunsaturated" group and usually commands a premium price on world markets.

Some Western Australian farmers seeking to diversify their cropping programmes in the face of marketing difficulties for many agricultural products are trying sunflowers, although commercial production has not yet been achieved.

This article sets out some basic information for farmers wishing to try sunflowers.

Extracts From The Department Of Agriculture's Annual Report, 1974-75, Department Of Agriculture, Western Australia

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

The Department of Agriculture's Annual Report for the year ended June 30, 1975, took the form of short reviews of selected activities of the Department during the year.

Some of these reviews are reprinted below to give an idea of the range of activities undertaken by the Department. A limited number of copies of the full report are available to interested organisations from the Department of Agriculture, Jarrah Road, South Perth, 6151.

In past years the Department's report has taken the form of a relatively detailed technical summary of the work of each Division. Because of the large volume of …

Wheat Rust Epidemics, A G P Brown, J. T. Reeves

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

Stem rust of wheat is probably the most damaging plant disease in the world. The rust fungus attacks stems, leaves and heads, producing characteristic red-brown pustules which affect the plant's ability to fill out the grain. Yield loss is directly related to the amount of rust in the crop and the length of time the crop is infected.

In Western Australia it is not uncommon to find rust on crops in mid-October, but usually there is negligible loss of yield. In fact this pattern is quite normal throughout the world: In general, rust arrives too late to cause an epidemic. …

1975 Part 2 - Rate, Time And Frequency Of Nitrogen Application On Kikuyu, W. J. Cox

Experimental Summaries - Plant Research

J. Burton,, Hazelvale 74DE7. I. Dry Matter Production kg/ha/day tables - (No Spring '74 N) (Spring N 1974) Soil Properties March 10, 1975. Total N concentration % - Tables

1975 Trials On Doublegee, D J. Gilbey

Experimental Summaries - Plant Research

75A16, 75A17, 75C13, 75MO36, 75MO37, 75WH21, 75WH22. Biological control of doublegee.

1975 Weed Trials - Annual Ryegrass, Spray Top, Broadleaved Weeds In Cereals, Wild Oats, G. A. Pearce

Experimental Summaries - Plant Research

Ryegrass in cereals - 75A24, 75E16, 75G16, 75LG5, 75N19, 75NO32. Spray top annual ryegrass trial - Locality - Wongan Hills, Merredin Research Station Avondale Research Station, Newdegate Research Station. Background - Killing of immature seed by killing seedhead with paraquat is a method of reducing seed production in annual ryegrass. Method Various rates of 'Spray top' were applied to an even stand of ryegrass. Seed counts were made in December 1975 and will be made in March 1976. Plant counts after emergence will be made as well. Counts were partitioned into seed in head and seed shed. Herbicide control of …

1975 Clover Scorch, D. L. Chatel

Experimental Summaries - Plant Research

(Feb 1976) This report covers the three major clover scorch activities for the year: A) The tolerance screening at Denmark. B) The dry matter production in the second year of a mowing trial, in which clovers with and without scorch were compared the previous year. C) A summary of the first four years of a disease incidence survey - and an examination of some meteorological factors in relation to disease development. The first two were done jointly with Dr C.M. Francis. The following tentative hypotheses are advanced to explain the regional differences in the distribution of clover scorch: a) The …

1975 Lupin Diseases, P M. Wood

Experimental Summaries - Plant Research

Sclerotinia stem rot, a fungal disease, is becoming increasingly important. This disease can attack the stem at any point from the stem base to the first laterals. Lodging can result if the canker is severe enough. Superficial cankers can disrupt sap flow resulting in poorly filled pods. The fungicide Benlate is used overseas to control Sclerotinia in bean plantings, Accordingly, a fungicide trial was planned to estimate yield losses resulting from Sclerotinia infection. A secondary aim was to examine any yield response which could be attributed to reported growth promoting properties of benomyl - 75MT33. Brown spot of lupins - …

1975 Field Experiments On Legume Seed Inoculation, D. L. Chatel

Experimental Summaries - Plant Research

(January 1976) LIST OF EXPERIMENTS 1. The effect of cobalt and seed inoculation on Unicrop lupins. GREEN RANGE 2. The effect of cobalt and seed inoculation on Unicrop lupins. BRAMLEY RESEARCH STATION 3. The effect of cobalt and seed inoculation on Unicrop lupins. McALINDEN 4. The effect; of cobalt and seed inoculation on Unicrop lupins. CHOWERUP 5. The effect of cobalt and seed inoculation on Unicrop lupins. ALANO OKA 6. The effect of cobalt and seed inoculation on Unicrop lupins. LANCELIN 7. The effect of inoculation on Uni crop lupins. KATANNING 8. The effect of inoculation on Uni crop lupins. …

Effect Of Topdressing Different Forms Of Nitrogen Fertilizer On Corn, Doyle Peaslee, Morris J. Bitzer, Harold F. Miller

Agronomy Notes

Nitrate nitrogen is the dominant form of plant-available nitrogen in soils, since even ammonium nitrogen is rapidly converted to nitrate nitrogen under Kentucky field conditions. Nitrogen in the nitrate form can be lost by leaching in the drainage water and by denitrification when the soil is saturated with water for a relatively short period of time. With the increased cost and short supply of nitrogen fertilizers, it is especially important that applications be made at a time and in a way that will minimize losses.

Cytopathology Of Barley And Corn Leaf Tissue Infected With The Nd18 Strain Of Barley Stripe Mosaic Virus, Charles R. Mcmullen

Electronic Theses and Dissertations

The distribution of the ND18 strain of barley stripe mosaic virus (BSMV) in barley (Hordeum vulgare L.) and corn (Zea mays L.) leaf tissue was studied with light and electron microscopes. Virions were detected in the cytoplasm of barley mesophyll cells, subsidiary, guard and epidermal cells, vascular parenchyma cells, sieve and tracheary elements. Nuclear virus was found in barley mesophyll cells. Ultrastructural cytopathological changes were greatest in the inoculated leaf of barley which contained fewer virus particles than either primary acute or chronically infected tissues. Primary acute and chronically infected barley tissues contained intracellular virions scattered in the cytoplasm, in …

Effect Of Heated Air Drying On Soybean Oil Quality, Douglas G. Overhults, G. M. White, H. E. Hamilton, I. J. Ross, J. D. Fox

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

Prospects For A Successful Rape Crop, M J. Barbetti, A. G. P. Brown, P. Mcr. Wood

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

Since the disastrous 1972 season, when blackleg disease reached epidemic proportions, rapeseed production has declined dramatically. With attractive prices for rapeseed in prospect many farmers may be trying this crop again.

If the risk of loss from blackleg could be assessed early in the season it would assist in deciding whether rape would be an economic proposition.

1975 Experimental Programme With Lupins, G H. Walton

Experimental Summaries - Plant Research

74MO10 - Pasture establishment under a lupin orop (Wheat crqp 1975). 75AL3 - 6 Time x 3 Rates x 2 Varieties x 2 Herbicide Factorial. 75B3 - Lupin Agronomy in High Rainfall Area. 75BA4 - Early planting of Unicrop lupin. 75GE4 - Polyculture of Wheat and Lupin. 75GE5 - Rate of seeding Unicrop - low rainfall site. 75JE4 - Time of planting x rate of seeding lupins. 74MO10 - Pasture establishment under a lupin crop (Wheat crop 1975). 75MO6 - Time of planting x rate of seeding with L. albus cv WB2. 75MO7 - Pasture establishment under lupin crops. 75MO12 …

Time And Rate, Comparative Fungicide, Fungicide Application Method Trial, Clover Scorch Economy Demonstrations, A Bokor

Experimental Summaries - Plant Research

Time and Rate Trial 75AL33 Comparative Fungicide Trial 75AL34. Fungicide Application Method Trial 75D8. Clover Scorch Economy Demonstrations 75AL35.

1975 Field Experiments And Cereal Disease Surveys, A. G. P. Brown

Experimental Summaries - Plant Research

1. Septoria disease of wheat - 75BA17. 2. Fungicide seed dressing on lupins 3. Cereal Disease survey - Table 7 - Zone l. Beverley R.S. B3 2. Badgingarra A2 3. Chapman Bl 4. Gibson A5 5. Merredin C3 6. Mt Barker A5 7. Newdegate B4 8. Salmon Gums C5 9. Wongan Hills B2 10. Woodgenellup A5 11. Chowerup A5 12. Neradup A5 13. W. Grass Patch B5 14. E. Salmon Gums C5 15. Mellewa Cl 16. Yuna Cl 17. N. Mingenew Bl 18. Mingenew Bl 19. Gairdner River A5 20. Jerramungup B5 21. Ravensthorpe B5 22. N. Kojonup A4 23. …

1975 Weed Control In Lupin Investigations, J M. Allen

Experimental Summaries - Plant Research

1. The results with pre emergence herbicides confirm previous recommendations of simazine 1.25 kg/ha on heavy soil and diuron 1.25 kg/ha on light soils with the following modification. a) Simazine rates need to be increased to 3 kg/ha on very early (April) sovm crops in southern areas. b) Simazine has not damaged lupins in southern areas and where ryegrass is a major problem on sandy soils (i.e. Esperance) it is likely to give better responses than diuron. 2. As suspected in previous years simazine can by way of effective weed control produce a marked lupin vegetative response without any increase …

1975 Mn Drilled And Sprayed On Unicrop, J. W. Gartrell

Experimental Summaries - Plant Research

75AL25 (with Trevenen) Mn Drilled and Sprayed on Unicrop, 75AL26, 75ES28, 785ES29, 75GE32, 75MO31, 75MO33, 75TS24, 75TS25.