Life Sciences Commons^™

Options For Pest Management In Pastures, Phil Michael, Mike Grimm, Mike Hyder, Peter Doyle

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

Redlegged eath mit, blue oat ite, lucern flea and aphids damage pastures across southern Australia, and it has been estimated that they cause annual losses to the Australian wool industry alone of over $200 million.

Redlegged earth mite is without doubt the most serious of the four pests. Peter DoPhil Michael, Mike Grimm, Mike Hyder and Peter Doyle discuss intergrated management options to control these pests.

Soil Hardpans And Plant Growth, J W. Bowden, R. J. Jarvis

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

When farm vehicles travel over moist soils they can create hardpans which can marledly reduce crop and pasture yields.

Research at Wongan Hills Research Station has shown that plant growth and nutrient uptake were affected for at least eight years after the original workings caused the hardpan.

Progress In Clover Scorch Research, A Bokor, D. L. Chatel, D. A. Nicholas

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

Considerable progress has been made with the clover scorch problem since the devastation of the 971 epidemic when intensive research began.

Over 2000 varieties and crossbreds of subterranean clover from various collections have been screened for resistance resulting in the release of the first resistant clover, Esperance, this year.

Benefits of fungicidal spraying have been demonstrated and low cost spraying programmes for grazed pastures, and seed and hay crops are under field investigation.

Five New Clovers Bring Change In Pasture Recommendations, Department Of Agriculture, Western Australia

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

The release of five new subterranean clovers should improve pastures throughout farming areas.

This article summarises the new recommendations.

Subterranean Clover In W.A. 1. The Current Situation, B J. Quinlivan, C. M. Francis

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

From small beginnings some 50 or more years ago subterranean clover has come to dominate the pasture scene in Western Australia. Of the 7 000 000 hectares of sown pasture all but some 500 000 are sown to subterranean clover. Further, it is estimated that there remains an area of similar size still to be sown, although in some instances these future sowings will be possible only if suitable varieties are available.

Clearing and pasture development within the various agricultural regions of the State took place, as a rule, within quite clearly defined time intervals and the varieties selected for …

Trikkala, A New Safe Clover For Wet Areas, C M. Francis

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

Trikkala is a new low oestrogen subterranean clover cultivar which has been released to seed producers this year. It should be available in quantity to farmers in 1977 and is recommended as an alternative to Yarloop for winter-wet situations.

Subterranean Clover In W.A. 2. Characteristics Required For Agronomic Success, C M. Francis, B. J. Quinlivan, N. J. Halse, D. A. Nicholas

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

Development of subterranean clover varieties is a rapidly changing scene, particularly in terms of farmer acceptance, disease and persistency problems. This is only to be expected, because this is an agricultural plant of only some 50 to 70 years standing, whereas many other pasture plants have been in common use for thousands of years.

Root Rot Of Subterranean Clover In W.A, G C. Macnish, M. J. Barbetti, D. Gillespie, K. Hawley

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

Root rot of subterranean clover has occurred sporadically in the south west of Western Australia for a number of years.

In most seasons the disease has affected the clover paddocks of only a few farms, but in 1973 there was widespread pasture decline due to root rot in the South-West and south coastal districts.

At present the most promising approaches for minimising the effect of root rot appear to be the use of cultivation techniques and eventually the use of resistant varieties, or other pasture species.

The Effect Of Applied Nitrogen And Subterranean Clover On The Growth Of Doublegee, D J. Gilbey

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

Until 20 years ago doublegees in Western Australia were mainly confined to the red-brown earth soils of the wheatbelt.

Since then, they have spread to light loamy sand soils in the wheatbelt, many of which have carried subterranean clover from the mid-1940s onwards.

It has been widely presumed that the spread of doublegees on to the lighter sandy soils of W.A. can be associated with the establishment of subterranean clover on these soils.

This report summarises the results of a glasshouse experiment on the effect of clover and nitrogen on the growth of doublegee.

Oestrogen Free Subterranean Clovers : Their Development And Prospects, C M. Francis

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

SELDOM have plants received more publicity than the "oestrogen free" subterranean clovers developed by the University of Western Australia's Institute of Agriculture.

The production of oestrogen free clovers has attracted great popular interest, particularly among farmers in the southern sheep raising districts.

The Certified Strains Of Subterranean Clover : Their Origin, Potential Use And Identification, B J. Quinlivan, C. M. Francis, M. L. Poole

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

SUBTERRANEAN CLOVER originated in the countries surrounding the Mediterranean Sea and in parts of Western Europe.

Therefore it is not surprising that it grows well in the agricultural districts of Western Australia, for these regions have a typically Mediterranean climate with cool wet winters and hot dry summers.

New Strains Of Subterranean Clover : Prospects And Problems For The Seed Producer, B J. Quinlivan

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

THREE new strains of Subterranean clover—Daliak, Seaton Park and Uniwager—have been released.

In Western Australia, in other States and perhaps some overseas countries, the next few years will see many farmers or graziers summing up the merits and demerits of these strains and subsequently making a decision to change or not to change their present strains.

Subterranean Clover Establishment In The Wheatbelt, M L. Poole

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

Care and attention to detail will greatly increase the chances of establishing good subterranean clover pastures in the wheatbelt.

PASTURE ESTABLISHMENT usually takes second place to cropping in the wheatbelt, with many farmers "bunging in a bit of clover" and hoping for the best. The worst often transpires, with either patchy stands or complete failure resulting.

Using "cheap" methods of establishment is a short-sighted approach and a waste of energy and resources.

Clover Ley Farming In Western Australia : An Important Research Project, T C. Dunne

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

IT is an accepted fact that the pasture period developed as an alternative to cropping in areas where cereals are grown results in increased fertility and a potential for higher cereal crop yields.

Successive Crops In A Clover Ley Rotation, H M. Fisher

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

Recent investigations suggest that cereal production on clover leys in the medium rainfall region can be increased by growing a succession of cereal crops after the pasture phase.

In most areas accumulated fertility after four to five years of clover pasture will support two, and in some cases three, high yielding cereal crops grown in succession.

Where root rot diseases are prevalent it is an advantage to sow oats as the initial crop.

Root Diseases In Wheat On Clover Ley : Factors Under Investigation. 1. The Role Of Oats After Ley, S C. Chambers

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

The role of oats in relation to root diseases of wheat was examined at four of the State Wheat Research Stations.

Several recognised pathogenic organisms were isolated in the course of the investigation, the most important being Ophiobolus graminis, which is the cause of "take-all."

Results suggest that one year under oats after clover ley is sufficient to reduce the incidence of take-all, except when seasonal conditions are extremely favourable to the disease.

In areas where take-all is a problem, wheat planted after a first crop of oats can sometimes give a higher yield than a first crop of wheat. …

The Geraldton Strain Of Subterranean Clover, A J. Millington

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

THE cereal-growing areas of Western Australia form a narrow triangle extending about 700 miles from north to south, gradually increasing in width towards the south to about 150 miles.

The Use Of Seed Inoculum For Subterranean Clover In The Jerramungup, Gairdner River Areas, William John Toms

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

IT is unlikely that benefits will be obtained from inoculating Dwalganup or Bacchus Marsh subterranean clover seed sown in the Jerramungup or Gairdner River districts other than on the fine sands of different geological origin (Miocene) occurring in some southern areas of the Gairdner River District.