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

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Articles 1531 - 1560 of 1916

Full-Text Articles in Life Sciences

Orchard Planting Systems, K T. Whitely Jan 1962

Orchard Planting Systems, K T. Whitely

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

HAVING decided on the location of the orchard and the types of fruit trees to be planted, the grower is still faced with the problem of layout of the trees in the new orchard.


Skeleton Weed : A Menace To The Wheat Industry, G R W Meadly Jan 1962

Skeleton Weed : A Menace To The Wheat Industry, G R W Meadly

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

If introduced into Western Australia skeleton weed could become a greater problem to the wheat industry in this State than it is in the Eastern States.The risk of introduction is increasing.

Study these illustrations so that you will be able to recognise skeleton weed if you see it; early recognition may mean the difference between eradication and infestation.


Fifth West Australian Random Sample Egg Laying Test : 1961-1962 : Progressive Laying Report To April 29, 1962, P Smetana, F. A. E. Hunt Jan 1962

Fifth West Australian Random Sample Egg Laying Test : 1961-1962 : Progressive Laying Report To April 29, 1962, P Smetana, F. A. E. Hunt

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

FIFTH RANDOM SAMPLE LAYING TEST, 1961-62 Progressive Report to April 29th, 1962 (18 Weeks)


Water For Agriculture. 3. Watering Plants With Salty Water, Stanley Thomas Smith Jan 1962

Water For Agriculture. 3. Watering Plants With Salty Water, Stanley Thomas Smith

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

In Western Australia it is often necessary to use saline water for irrigation and gardening because of the lack of better water.

Two factors influence the results achieved. One is the selection of suitable plants, the other is the way in which the water is used.


Trees Of Western Australia. No. 99. The Mottlecah (Eucalyptus Macrocarpa Hook.). No. 100. The Bald Island Marlock (Eucalyptus Lehmannii Preiss Ex Schau.), Charles Austin Gardner Jan 1962

Trees Of Western Australia. No. 99. The Mottlecah (Eucalyptus Macrocarpa Hook.). No. 100. The Bald Island Marlock (Eucalyptus Lehmannii Preiss Ex Schau.), Charles Austin Gardner

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

This species, a shrub between six and 15 feet in height, is the largest-flowered of all the species of Eucalyptus.

The name is intended to indicate this fact, but unfortunately the Greek work makros means "long" and actually the fruit "karpos" is remarkably short in comparison to its diameter, being in fact the broadest fruit within the genus.


Rearing Healthy Calves, Department Of Agriculture, Western Australia Jan 1962

Rearing Healthy Calves, Department Of Agriculture, Western Australia

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

NOW is the time to consider some form of grazing management and supplementary feeding for early born calves, especially in the butterfat zone.

The calves are now two to three months old and beginning to forage for themselves, This can be a critical period in their development.


Paspalum Vaginatum For Salty Seepages, C V. Malcolm Jan 1962

Paspalum Vaginatum For Salty Seepages, C V. Malcolm

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

Paspalum vaginatum, aptly termed "sea shore paspalum" has over the last fifteen years shown an amazing ability to thrive in wet salty situations.

Seed of the grass is not available but it may easily be established by planting pieces.

This article reviews where and how the grass may be used.


The Effects Of Tillage Implements On Cereal Yields, H M. Fisher Jan 1962

The Effects Of Tillage Implements On Cereal Yields, H M. Fisher

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

Careful soil preparation is essential for cereal crops grown without fallow on clover ley land.

Crops give better yields where the land is broken up with a mouldboard or disc plough rather than a scarifier or similar machine.

The implements differ appreciably in their capacity to control weed growth and this is largely responsible for variations in cereal yields. "Takeall" disease is reduced by efficient weed control.


Lambs Need Drenching At Weaning, Department Of Agriculture, Western Australia Jan 1962

Lambs Need Drenching At Weaning, Department Of Agriculture, Western Australia

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

RECENT losses among young lambs due to heavy infestations of black scour worm (Trichostrongylus species) have indicated that this year the problem of worms in weaners may be more troublesome than usual.


Stress Factors In Pig Raising, P C. Beck Jan 1962

Stress Factors In Pig Raising, P C. Beck

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

THE pig raiser who wishes to attain the best possible growth performance from his pigs must recognise factors other than the basic ones of good nutrition and bredin capacity.

These are "stress factors"—minor factors of husbandry which can greatly damage health and limit the growth rate.


Downy Mildew Of Wheat, S C. Chambers Jan 1962

Downy Mildew Of Wheat, S C. Chambers

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

DOWNY MILDEW is caused by the fungus Sclerospora macrospora Sacc. and is almost solely confined to waterlogged areas in paddocks of heavy soil types.

Generally, the disease is most evident in crab-hole gimlet country.


A Modified Copper Hot Water System, F J. Fielder Jan 1962

A Modified Copper Hot Water System, F J. Fielder

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

A good supply of hot and boiling water for cleansing and sterilising utensils is essential for hygienic milk production.

Dairy Instructor F. Fielder, M.D.D., describes an efficient and economical modification of a copper hot water system for this purpose.

SINGLE copper units of 14 or 16 gallon capacity to supply hot and boiling water for the dairy are no longer good enough for most dairy farms.


Control Of Lice On Cattle, Department Of Agriculture, Western Australia Jan 1962

Control Of Lice On Cattle, Department Of Agriculture, Western Australia

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

THE external parasites, biting and sucking lice (particularly of calves) are the cause of much unthriftiness.


Pullorum Tested Poultry Flocks : 1962, Department Of Agriculture, Western Australia Jan 1962

Pullorum Tested Poultry Flocks : 1962, Department Of Agriculture, Western Australia

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

THIS year's pullorum tests of poultry flocks have revealed the lowest incidence of reactors since the tests began.

Results are recorded below.


Meadow Hay, Department Of Agriculture, Western Australia Jan 1962

Meadow Hay, Department Of Agriculture, Western Australia

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

rriHE nutritive value of pasture is high in early spring and remains so until early flowering.

After this the protein content falls rapidly, the fibre content rises and the plants become more lignifled and their digestibility reduced.


An Unusual Tick Fever Outbreak, Department Of Agriculture, Western Australia Jan 1962

An Unusual Tick Fever Outbreak, Department Of Agriculture, Western Australia

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

EARLY in the summer of 1961 there was a series of unusual tick fever outbreaks on several poultry farms in the metropolitan area.

These outbreaks were unusual because no apparent vector (disease carrier) could be found.


Wood-Rotting Fungi Associated With Dieback In Apple Trees : Progress Report : Orchard Surveys And Laboratory Studies, R F. Doepel Jan 1962

Wood-Rotting Fungi Associated With Dieback In Apple Trees : Progress Report : Orchard Surveys And Laboratory Studies, R F. Doepel

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

DIEBACK, or decline, of apple trees has been a serious problem for many years in orchards throughout the South-West of Western Australia.

Wood-rotting fungi are commonly associated with this condition and often bring about collapse of affected trees.


Root Diseases In Wheat On Clover Ley : Factors Under Investigation. 4. Seed Bed Preparation, S C. Chambers Jan 1962

Root Diseases In Wheat On Clover Ley : Factors Under Investigation. 4. Seed Bed Preparation, S C. Chambers

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

The occurrence of root rots in wheat crops in relation to seed bed preparation was studied in a series of field experiments.

Results suggest depth of cultivation has little effect upon the incidence of root diseases.

Ploughing of the seed bed reduced the amount of root rot compared with scarifying and also gave higher yields.

However, the increased yield appears to be mainly due to better control of weeds.


Mesquite (Prosopis Juliflora D.C.), G R W Meadly Jan 1962

Mesquite (Prosopis Juliflora D.C.), G R W Meadly

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

A TREE grown for shade and ornamental purposes and bearing nutritious pods would appear to be welcome anywhere.

This description applies to Mesquite; however it has certain undesirable characteristics which usually outweigh the advantages and pose a major agricultural problem.

That, in fact, is the position in Western Australia.


Check Your Milking Machine, T Pavy Jan 1962

Check Your Milking Machine, T Pavy

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

MILKING machine efficiency testing carried out by officers of the Department of Agriculture's Dairying Division have shown that many machines are not up to standard.

One reason for this is that farmers do not check their machines regularly.


Bee Farming : Honey Flora Of Western Australia, R S. Coleman Jan 1962

Bee Farming : Honey Flora Of Western Australia, R S. Coleman

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

A GOOD knowledge of the nectar producing plants of the State is essential for success in commercial beekeeping.

The beekeeper who has a good knowledge of which plants produce good flows, when the flows might be expected, and where good stands of those plants may be found is the one who has the best chance of success.


Mulesing And Tailstripping : For The Prevention Of Fly-Strike, W L. Mcgarry Jan 1962

Mulesing And Tailstripping : For The Prevention Of Fly-Strike, W L. Mcgarry

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

MULESING and tailstripping are basic to fly strike control.

During emergencies and bad fly waves they may need to be supplemented by temporary protective measures such as jetting and crutching.


Water Cooling Towers : For Cooling Milk On The Dairy Farm, K Needham Jan 1962

Water Cooling Towers : For Cooling Milk On The Dairy Farm, K Needham

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

Experience on dairy farms where water cooling towers have been installed has shown that the quality and grading of milk and cream has been improved and maintained, particularly during the summer.

MOST defects in the quality of dairy produce can be attributed to the activity of micro-organisms which cause spoilage.


The Pruning Of Fruit Trees : Deciduous Fruit Trees (Japanese Plums) (European Or English Plums), H R. Powell Jan 1962

The Pruning Of Fruit Trees : Deciduous Fruit Trees (Japanese Plums) (European Or English Plums), H R. Powell

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

Many varieties of Japanese plums are grown in this State, the main ones being Santa Rosa, Ruby Blood, Satsuma, Delaware, Wickson, Narrabeen, Elizabeth, Beauty and Wilson.


Mycotic Dermatitis (Lumpy Wool) And Fleece Rot Of Sheep, J Shilkin Jan 1962

Mycotic Dermatitis (Lumpy Wool) And Fleece Rot Of Sheep, J Shilkin

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

Matted and sometimes discoloured specimens of wool are often received at the Department of Agriculture during seasons of heavy rainfall.

Two similar but quite distinct diseases are recognised as having caused this condition.

They are mycotic dermatitis (lumpy wool) and fleece rot. Both conditions damage the fleece and render affected sheep susceptible to blowfly strike.


Plan For The Pilbara, Department Of Agriculture, Western Australia Jan 1962

Plan For The Pilbara, Department Of Agriculture, Western Australia

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

A DOUBLE-BARRELLED plan for pasture regeneration and vermin control put into action by the Department of Agriculture this year gives promise for the rehabilitation of the run-down pastoral country in the rugged Pilbara region of Western Australia.


Insect Pests Of Forests. 2. Tussock Moths And Bag-Shelter Moths, Clee Francis Howard Jenkins Jan 1962

Insect Pests Of Forests. 2. Tussock Moths And Bag-Shelter Moths, Clee Francis Howard Jenkins

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

TWO native caterpillars which sometimes attract attention are the larvae of the tnssock moth and the bag-shelter moth.

Neither insect is a serious forest pest in Western Australia, but the tussock moth sometimes does restricted damage in orchards and home gardens and the bag-shelter caterpillars cause some defoliation of wattles and eucalyptus.


Silage Competitions In The South-West : 1960-1961, Department Of Agriculture, Western Australia Jan 1962

Silage Competitions In The South-West : 1960-1961, Department Of Agriculture, Western Australia

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

Review and results of the 1960-61 Australian Dairy Produce Board Silage Competition, and an outline of the 1961-62 Competition.


Frost Injury Of Wheat, S C. Chambers Jan 1962

Frost Injury Of Wheat, S C. Chambers

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

Late spring frosts commonly reduce yields and affect the quality of grain in many wheat crops- especially throughout the southern, eastern and north-eastern districts.

The damage is usually localised on individual farms, but occasionally widespread damage occurs in the south of the State.


Lettuce Spotted Wilt, H L. Harvey Jan 1962

Lettuce Spotted Wilt, H L. Harvey

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

SPOTTED wilt disease of lettuce was first recorded in Western Australia in 1937.

Only traces of the disease are found in some years but in other years it seriously affects yields and quality.

Spotted wilt is most prevalent in spring and autumn crops.