Weed Science Commons^™

Weed Control In Linseed, J G. Paterson

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

In 1967, almost 7,000 acres of linseed were planted in Western Australia. The area increased to more than 25,000 acres in 1968 and it is expected that some 40,000 to 50,000 acres will be planted in 1969.

FOR MANY years linseed has been a comparatively unimportant crop, recently been highlighted both as a "cleaning" and as a "cash" crop. Its value has

Weed Control In Pastures : A Practical Approach For Sheep Areas, Geoffrey A. Pearce

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

IN the past, chemical treatments for the control of weeds in pastures have been costly and severe on pasture, and have had to be repeated over a number of years. The method outlined in this article overcomes nearly all these disadvantages.

The Control Of Weeds In Cereals, Geoffrey A. Pearce

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

PRACTICALLY all broadleaved weeds found in cereals can now be killed with herbicides and with most, the farmer has a choice of chemicals.

Two more new products are now available and these have several advantages over other herbicides.

Chemical Ploughing, Geoffrey A. Pearce

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

PROGRESS in the field of chemical weed control has been spectacular in recent years. One field that is attracting interest is the idea of replacing cultivation with chemical sprays.

Progress In Weed Control, Department Of Agriculture, Western Australia

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

In May, 1967, the "Journal of Agriculture" printed a special issue on weed control, with the emphasis on chemicals for weed control in cereal crops.

This month, just two years later, enough new information has accumulated to warrant publication of another "theme" issue, this time with important articles on weed control in pastures, chemical firebreaks and chemical ploughing, as well as weed control in linseed and cereal crops.

Control Of Cape Tulip, Geoffrey A. Pearce

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

CAPE TULIP is the worst weed in the Avon Valley and northern areas of the Great Southern districts.

It occurs elsewhere to a limited extent but even then it is regarded as a serious weed.

Stubble Burning Helps Control Wimmera Rye Grass, M G. Mason, W. J. Toms, J. W. Gartrell

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

In a trial at Wongan Hills Research Station, burning of wheat stubbie in a continuous cropping system, helped to control Wimmera Rye Grass in the crop and resulted in yields up to 25 bushels an acre higher than where the stubble was ploughed in.

WIMMERA RYE GRASS is the most widely used annual pasture grass in the agricultural areas of Western Australia.

It has proved valuable for sheep feed where legume pastures are not grown.

However, it has often proved a serious weed in cereal crops, causing large yield reductions.

Watsonia (Watsonia Spp. And Chasmanthe Aethiopica (L.) N.E. Brown), G R W Meadly

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

AS the t i t le implies, the vernacular name Watsonia is applied, not only to several species of that genus, but also to the related Chasmanthe aethiopica. At times some small flowered types of Gladiolus are also included.

Control Of Weeds In Garden Areas, Geoffrey A. Pearce

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

THE present-day gardener does not appear to relish the tedious job of removing weeds by hand. It is a never-ending task and no sooner is one germination controlled than another appears.

Modern herbicides provide a ready answer for overcoming the weed problem in the home garden, but it is essential to select the correct chemical and to understand its limitations.

The Control Of Doublegee, Geoffrey A. Pearce

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

FOUR years ago no practical recommendations could be made for the control of doublegee.

With money provided by the State Wheat Research Fund, research has been undertaken into the control of this weed, and there is now no reason why most farmers cannot bring doublegee under control.

Control Of Wild Oats, J G. Paterson

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

WILD OATS are widespread throughout the world.

Their importance can be gauged from the fact that in the wheat growing areas of Canada and the U.S.A. some 60 million acres are infested.

Two chemicals are now available for the control of wild oats in wheat. This article compares their relative merits and gives recommendations for their use.

Linuron : A Success In 1966?, Geoffrey A. Pearce

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

Although some of the farmers who used linuron last year reported poor results, there is little doubt that this is the best herbicide since the advent of 2,4-D for weed control in cereals. This article gives the reasons for failure in some of last season's crops, and recommendations for use of linuron in 1967.

The Control Of Weeds In Cereals, Geoffrey A. Pearce

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

PROBABLY the simplest way of obtaining an increase in crop yield is to control the weeds present.

Nearly a million acres of cereal crops are sprayed by aircraft each year and when the area treated by ground units is added, something like 20 per cent of the total area sown is sprayed with herbicides.

Watch Out For Afghan Thistle, J G. Paterson

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

ALTHOUGH known throughout the cereal and sheep districts of Western Australia as Afghan thistle, this plant is not really a thistle at all.

It belongs to the large botanical family of the Solonaceae and is closely related to the garden vegetables tomato and potato.

Control Of Summer Weeds Around Apple Trees, N H. Shorter

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

THE application of residual herbicides around the butts of irrigated apple trees early in summer has given good control of summer-growing weeds in recent experiments, as well as in a number of commercial orchards.

Weed Control : Cotton Fireweed, Department Of Agriculture, Western Australia

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

COTTON FIREWEED is a native perennial plant which has developed as a serious weed in the south coastal areas.

Being a perennial it makes quick, active growth following summer rains and rapidly outgrows annual pasture plants.

Recommendations For Doublegee, Geoffrey A. Pearce

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

Is it worth losing the legume component of the pasture in order to kill the doublegee?

The Control Of Weeds In Orchards, Geoffrey A. Pearce, S. E. Hardisty

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

THE use of herbicides for the control of weeds in orchards has become established during the past few years.

It has become more efficient with the introduction of newer herbicides which have proved more effective and less dangerous than some of those recommended in the past.

Weed Control In Irrigation Channels, Geoffrey A. Pearce

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

Probably the major task involved in maintaining drainage and irrigation channels is the regular removal of weed growth.

The cost of hand chipping a standard head channel is approximately 10s. per chain.

The use of suitable chemicals could reduce this cost considerably.

Watch Out For Wild Oats, J G. Paterson

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

SINCE the publication of the results of trials with Carbyne* on wild oats in cereal crops several enquiries have been received from farmers whose crops have been heavily infested with the weed.

Broom Rape, Department Of Agriculture, Western Australia

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

BROOM RAPE (Orobanche australiana) is a parasite which becomes attached to the roots of other plants.

It is not very selective regarding hosts and has been found parasitising many species, but particularly clovers.

Saffron Thistle, B J. Quinlivan, H. A. Pearce

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

Saffron thistle is a declared primary noxious weed in Western Australia and is especially troublesome in the northern agricultural areas.

Field trials aimed at finding the cheapest and most effective method of controlling the weed have shown that 2,4-D applied at the correct stage is the best chemical to use.

Control Of Perennial Grasses, Department Of Agriculture, Western Australia

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

Perennial grasses such as paspalum, kikuyu and couch can be controlled by spraying with a solution containing 2,2-DPA.

This is a non-poisonous powder which is sold under a variety of trade names.

Weed Control Around The Yard, Geoffrey A. Pearce

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

MANY farmers and city householders have weed problems around houses and sheds which can be readily overcome by treatment with appropriate herbicides.

The risk from fire through weeds and unsightly growth can easily be removed and an area free of any plant growth can be maintained with little effort for a considerable period.

Progress In The Control Of Cotton Fireweed, Geoffrey A. Pearce

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

Cotton Fireweed (Erechtites quadridentata) is native to Western Australia and was first collected by Drummond before 1850. In its natural habitat it is quite insignificant and passes unnoticed.

Cotton fireweed, a native perennial plant, has become a serious weed in the south coastal districts and is now one of the most widespread weeds in the State.

Weeds In Lawns. 2. The Control Of Weeds In Lawns, Geoffrey A. Pearce

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

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

To the many people who like to keep a weed free turf it is therefore encouraging to know that nearly all weeds can be controlled with herbicides.

Control Of Weeds In Processing Peas, J G. Paterson

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

GROWERS of processing peas face many problems not the least of which is the control of weeds.

Crops which are to be harvested for canning or freezing must be practically weed free if good returns are to be obtained.

A summary of the results of trials carried out in 1962 to test recent developments in the chemical war against weeds in crops of processing peas.

Wild Oats In Wheat, J G. Paterson

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

Trials with a new chemical suggest that economical control of wild oats in wheat is only possible in heavily infested crops.

I N recent years there has been a marked increase in the incidence of wild oats in the wheat areas of this State. Three factors have been responsible.

The Control Of Grasses With Chemicals, G R W Meadly

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

GRASSES are among man's greatest assets and usually he tries to encourage their growth.

The cereals, rice and many other grasses supply him with basic items of food and they are also important components of pastures which provide grazing for sheep and cattle.

Weed Control In Cereals : Aerial Spraying Trials, G R W Meadly

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

SPRAYING cereal crops for weed control is now standard farming practice in Western Australia. Almost 500,000 acres of cereal crops, mainly wheat, are sprayed each year, and approximately three-quarters of this area is treated by aircraft.

Recent trials have shown that aerial application of 'extra low" volumes of hormone-like herbicides, with oil or water solvents, does not damage cereals if spraying is done at the right stage of growth.