Fourth Australian Weeds Conference (1970)

University of Tasmania, Hobart, Tasmania.
29 November – 4 December 1970.
Published by CSIRO

Reviews: New South Wales

The weed situation in New South Wales
J. Strang   pp. 17-19
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Weeds in the agricultural crops of New South Wales
E.G. Cuthbertson   pp. 20-21
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Weeds of horticultural crops in New South Wales
D. Leggo   pp. 22-25
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Weed problem of pastures and grazing lands
A.D. Mears   pp. 25-26
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Weed control in industrial and non-crop situations in New South Wales
A. Nelson Johnson   pp. 27-29
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Weed control in the State Forests of New South Wales
R. Truman   pp. 29-33
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Reviews: Northern Territory

Weeds in the Northern Territory
J.E. Holmes   pp. 35-36
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Weeds of crops in Northern Territory
J.E. Holmes and D. Airey   pp. 37-38
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Weeds in horticulture crops in Northern Territory
J.E. Holmes   p. 39
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Weeds in pastures and grazing land in Northern Territory
P.G. Harrison   pp. 40-42
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Weeds in non crop situations in the Northern Territory
J.E. Holmes   pp. 43-44
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Forests and woody weeds of the Northern Territory
J.E. Holmes   pp. 44-46
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Reviews: Queensland

Weeds and weed control in Queensland – A review of the present situation
S.L. Everist   pp. 48-54
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Weeds of agricultural crops in Queensland
J.E. Rawson   pp. 54-56
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A brief review of the weed situation in vegetable crops in Queensland
J. Gage   pp. 57-58
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A brief review of the weed situation in potatoes and onions in Queensland
W.H. Hazard   pp. 59-60
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A summary of the weed situation in pasture and grazing land in Queensland
D.R. Bailey   pp. 61-63
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Weeds of non crop situations
W.H. Haseler and A.J. Tomley   pp. 63-65
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Forest and woody plant weeds in Queensland
G. Diatloff   pp. 66-69
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Reviews: South Australia

Weed situation in South Australia
A.F. Tideman   pp. 71-72
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Weeds in the agricultural field crops of South Australia
G.B. Baldwin   pp. 73-75
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Weeds in the horticultural crops of South Australia
I.S. Rogers   pp. 76-79
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Weed control in non-crop situations (including aquatics) in South Australia
M.J. Catt   pp. 79-81
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Woody weeds and weeds of forests in South Australia
M.J. Catt   pp. 81-82
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Weed control in pastures and grazing land in South Australia
P.M. Kloot   pp. 83-85
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Reviews: Tasmania

Regional review of weeds and weed control in Tasmania
J.P. Kennedy   pp. 87-88
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Weeds in agricultural crops in Tasmania
B.H. Hyde-Wyatt   pp. 89-90
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Weeds in horticultural crops in Tasmania
B.J. Baldwin   pp. 91-93
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Weeds in pasture and grazing lands in Tasmania
J.P. Kennedy and G.M. Bendall   pp. 94-95
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Weeds in non-crop and aquatic situations in Tasmania
J.P. Kennedy   pp. 96-97
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Forests and woody plant weeds in Tasmania
T.M. Cunningham   pp. 98-99
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Reviews: Victoria

The weed situation in Victoria
J. McCann and W.T. Parsons   pp. 101-103
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Weed control in agricultural crops in Victoria
J. McCann   pp. 104-106
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Weeds of horticultural crops in Victoria
C.R. Brough   pp. 107-108
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Weeds in pasture and grazing lands in Victoria
I.H. Cameron   pp. 109-111
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Weeds in non crop situations including aquatics
W.T. Parsons   pp. 112-114
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Forests and woody plant weeds in Victoria
W.T. Parsons   pp. 114-116
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Reviews: Western Australia

Weeds in agricultural crops of Western Australia
G.R.W. Meadly   pp. 118-120
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Weeds in pasture and grazing lands of Western Australia
G.A. Pearce   pp. 121-122
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Weeds in non crop situations in Western Australia
J.G. Paterson   pp. 123-124
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The weed situation in Western Australia
G.A. Pearce   pp. 125-126
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Weeds in horticultural crops of Western Australia
G.A. Pearce   pp. 127-128
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Forests and woody plant weeds in Western Australia
J.G. Paterson   pp. 129-130
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Hazards associated with use of herbicides

Hazards associated with the use of herbicides drift and volatility
S.L. Everist   pp. 131-134
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Herbicide residues in soils
T.W. Donaldson   pp. 135-140
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Herbicide residues in plants
C.G. Greenham   pp. 141-143
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Hazards from residues of herbicides in water
S.M. Bill   pp. 144-148
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Spray drift control with thickening agents
R.G. Richardson   pp. 150-151
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Effect of meteorological conditions on drift of spray clouds
H.G. Bond   pp. 151-153
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Factory and field hazards in relation to various weedicides
G.R. Simpson   pp. 153-154
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Soil residues of herbicides after repeated use
P.W. Weiss   pp. 156-157
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Picloram persistence and its effect on wheat crops
N.S. Welsh   pp. 157-158
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The effect of soil residues of picloram on wheat crops and undersown legumes
G.J. Wells   pp. 159-160
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Hazards associated with the use of picloram for skeleton weed control in the Murray Mallee
R. McR. Wood   pp. 160-163
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An investigation of the rate of detoxificati�n and movement of picloram in a clay soil
J.M.T. Marley   pp. 164-165
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A review of the degradation and movement of picloram in soil and water
C.A.I. Goring   pp. 166-171
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Stimulating soil microorganisms to decompose pyridine herbicide residues
R.J. Swaby, M.N. Naik, and R.B. Jackson   pp. 171-172
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Atrazine degradation in soils – soil and environment factors
K.H. Boumer and D.V. Crawford   pp. 173-174
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Atrazine degradation in soils – the effect of pH and some possible catalysts
K.H. Boumer and D.V. Crawford   pp. 175-176
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Ecology

Changing weed problems due to selective chemical treatments in South Australia
P.M. Kloot   pp. 178-179
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Changes in non-arable pasture following measures to control serrated tussock and bracken fern
J.A. Carnahan   pp. 180-181
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Weeds as reservoirs of plant diseases
N.H. White   pp. 182-183
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Cyperus rotundas control with herbicides
A.A. da Costa   pp. 184-189
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Biological control of plants of potential weed status
K.L.S. Harley   pp. 191-192
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Biological control of weeds by plant pathogenic bacteria
D.C. Sands and A.D. Rovira   pp. 192-193
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Progress in the biological control of groundsel bush
B.W. Wilson and P.J. McFadyen   pp. 194-195
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Recent advances in biological control of Lantana careara
K.L.S. Harley   pp. 196-198
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Field release of the Noogoora burr insects, Mecas and Nupserha
W.H. Haseler   pp. 199-200
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Control of pasture weeds by grazing management
V.R. Squires and L.F. Myers   pp. 200-201
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Control of rushes Juncus spp. in irrigated pastures
V.R. Squires, W.T. Gordon and C.R. Kleinig   pp. 202-203
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Seasonal fluctuations in density of Chondrilla juncea
V.J. Hulland R.H. Groves   pp. 204-206
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Analysis of competition for light in mixed communities
D.J. Connor   pp. 206-207
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Competition between Crofton weed and Siratro
B.A. Auld and P.M. Martin   pp. 208-209
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Biology of weeds (physiology, anatomy and taxonomy of weeds)

Taxonomic and biological studies in Echinochloa
P.W. Michael   pp. 211-212
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Preliminary studies into the propagation of Pennisetum macrourum.
L. Schmidl   pp. 212-213
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Spiny burr grass in eastern Australia
J. Twentyman   pp. 214-215
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Competitive effects of wild oats on wheat under field and glasshouse conditions
F.B. Watkins   pp. 215-217
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The use of lodicule shape as a means of separating wild oat strains
F.B. Watkins   pp. 217-218
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Germination behaviour of Echium lycopsis
L.A.T. Ballard   pp. 219-221
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Flowering responses of Echium lycopsis to phoeriod and vernalization
L.A.T. Ballard and A.E. Grant Lipp   pp. 221-223
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Reproduction of Rubus procerus
R.L. Amor   pp. 224-225
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The carbohydrates of Harrisia cactus
G. Harvey   pp. 226-228
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Adonis spp. in south-eastern Australia
P.M. Kloot   pp. 228-230
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Three forms of Chondrilla juncea.
V.J. Hull and R.H. Groves.   pp. 230-231
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Ecology of Tribulus terrestris in southern Australia
V.R. Squires   pp. 231-233
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Machinery and application techniques (commercial and research)

Soil incorporation of substituted urea herbicides for weed control in cotton
D.J. Swain and J.M. Simpson   pp. 235-236
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A simple pot technique for determining phytotoxicity of a soil-incorporated pre-emergence herbicide
W.H.L. Hazard   pp. 237-238
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Spray pattern efficiency
D.W. McNamara   pp. 239-240
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Logarithmic step sprayer for field screening of herbicides
P.A. Watkins and R.H. Herniman   pp. 240-242
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The development of a multipurpose precision boom sprayer
B.H. Hyde-Wyatt   pp. 242-243
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Herbicides – new chemicals, new uses

Basic philosophies and approaches in the development of new chemicals and new uses for herbicides
A. Gast   pp. 246-247
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Herbicide registration in Australia – definitions and improvements, past and potential
B.B. Brett   pp. 248-250
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Herbicide registration in Australia – company programmes and mechanical aspects
B.B. Brett   pp. 250-253
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Pre-emergence weed control in cereals with VCS 438
M.W. Barrett and W.C. Stonebridge   pp. 253-255
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Control of weeds in perennial ryegrass seed crops with asulam
J.H. Combellack   pp. 256-257
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New herbicides for control of Wimmera ryegrass in wheat
T.G. Reeves   pp. 257-258
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Control of weeds in lucerne with baretamide
J.H. Combellack   pp. 259-260
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Asulam in hops
B.H. Hyde-Wyatt   pp. 260-261
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Tolerance of cereal crops to herbicides
B.R. Elliott and J.M. Lumb   pp. 262-263
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The role of non-residual herbicides in crop establishment systems
D.L. Rowell and W.C. Stonebridge   pp. 264-266
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The use of chemicals in a summer fallow system
A.E. Badley and W.C. Stonebridge   pp. 267-268
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Alachlor – a new pre-emergence herbicide for Lolium rigidum control in cereals
J.M. Allen   pp. 268-270
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Does Karmex® have a place as a selective post emergent annual Wimmera ryegrass herbicide in wheat in South Australia?
G.B. Baldwin   pp. 270-272
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Fenoprop finds new uses
G. Diatloff   pp. 272-273
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Bayer 94 337, a compound from a new group of herbicides
P.F. Rylands and J.W. Watt   pp. 274-275
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Evaluation of RH-315 as a herbicide in lettuce
B.D. Robinson   pp. 275-277
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Chlorthal – a new herbicide tool in orchards and vineyards
W.J. Burke   pp. 278-279
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CP44939 – a new herbicide for the control of Cyperus rotundus.
W.H.L. Hazard   pp. 279-281
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RH-315 – a selective herbicide
W.J. van de Loo   pp. 281-282
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Weeds of agricultural crops

Factors influencing the spread of skeleton weed in the Victorian Mallee
G.J. Wells   pp. 286-287
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Cultivated and chemical fallows in a skeleton weed situation in the Victorian Mallee
G.J. Wells   p. 288
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The effect of repeated applications of picloram on skeleton weed control
V.M. Molnar and T.W. Donaldson   pp. 290-291
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Relationship between cultivation, picloram application, skeleton weed control, and wheat yield
V.M. Molnar and T.W. Donaldson   pp. 291-293
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Comparison of di-allate and barban for control of wild oats in wheat
T.G. Reeves and C.L. Tuohey   pp. 293-294
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The wild oat problem in New Zealand
F.C. Allen   pp. 294-296
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Wimmera ryegrass as a weed in cereals
G.A. Pearce   pp. 296-298
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Comparison of di-allate and tri-allate for control of Wimmera ryegrass in wheat
T.G. Reeves and C.L. Tuohey   pp. 298-299
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Control of broad-leaved weeds in wheat
T.E. Telford and C.L. Tuohey   pp. 299-301
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Chemical control of capeweed in wheat and oats
T.G. Reeves   pp. 301-302
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The control of soursob. Oxalis pes-caprae L. by the use of herbicides in South Australia
M.J. Catt   pp. 302-304
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The competition of some less common weeds with wheat
T.G. Reeves   pp. 305-306
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Effect of triazine herbicides on weed control in grain sorghum and their residual effect on the succeeding crop of wheat
P.A. Chadhokar   pp. 306-307
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Annual weed control in cereal crops with tribunil
K.W. Russell   pp. 308-309
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Wheat cultivar tolerance to barban
T.G. Reeves   pp. 309-311
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Chemical versus mechanical fallowing methods for wheat production on the Darling Downs
J.M.T. Marley   pp. 311-312
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The use of adjuvants with atrazine in maise
P.W. Weiss and D. Oliver   pp. 313-314
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Towards a system of land preparation and weed control for aerially sown rice grown under natural rainfall in northern Australia
D.R. Airey   pp. 314-316
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The effects of rate and time of application of molinate on the control of Echinoehloa spp. in rice
D.J. Swain   pp. 316-317
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The role of post-emergence herbicides for weed control in cotton in Queensland
W.H.L. Hazard   pp. 317-319
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Weeds in soybeans under irrigation in newly cultivated land at Camden, New South Wales
P.W. Michael   pp. 319-320
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Control of annual weeds in beet with phenmedipham and additives in New Zealand
G.W. Mason   pp. 321-322
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Weed control in lettuce
J. Toth   pp. 322-325
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The barley grass problem in the Maniototo District
F.A. Meeklah   pp. 325-326
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Weed control in pasture seed crops
P.M. Kloot and J.H. Dawes   pp. 327-328
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Weeds of horticultural crops, including potatoes and onions

The effect of dichlobenil on a number of vegetable crops
A.S. Morgans   pp. 330-331
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Post-emergence herbicides for onions
R.W. Stark   pp. 332-333
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Herbicide trials in onions in the principal onion-growing areas in South Australia
I.S. Rogers   pp. 334-336
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The control of Oxalis latifolia
T.I. Cox   pp. 337-338
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Weeds of sown pastures

Deleterious effects of weeds on grazing ruminants
I.W. McDonald   pp. 340-341
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A review or the status of some plants as annual pasture weeds in south-eastern Australia
C. Piggin   pp. 341-343
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Competition between Heliotropium europaeum and dryland lucerne
J.C. Noble   pp. 343-344
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Problems associated with selective control of barley grass in ryegrass-clover pastures in New Zealand
R.W. Moffat   pp. 345-346
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Control of dicotyledonous weeds in seedling lucerne
P.W. Weiss   pp. 346-347
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Weeds of grazing lands

A spraying grazing interaction in the control of pasture weeds
G.A. Pearce   pp. 349-350
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Galvanized burr – a problem in land management
A.D. Mears   pp. 350-352
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The influence of land utilization on ragwort Senecio jacobaea and problems associated with its chemical control
L. Schmidl   pp. 352-353
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Herbicides for the control of Harrisia cactus
G.J. Harvey and A. Tomley   pp. 354-355
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The distribution and control of silver-leafed nightshade (Solanum elaeagnifolium) in South Australia
M.J. Catt   pp. 355-356
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The problems and economics of Cycad control in the Northern Territory
J.E. Holmes   pp. 357-358
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Control of artichoke thistle with picloram
N.S. Welsh, R.J. Bray, T.W. Donaldson and W.T. Parsons   pp. 359-360
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The problem and chemical control of ox-eye daisy Chrysanthemum Zeucanthemum
L. Schmidl   pp. 361-363
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The use of bipyridyl herbicides to increase the clover component in pastures
P.D. Lawler and W.C. Stonebridge   pp. 363-365
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Woody weeds in semi-arid rangelands in New South Wales
R.W. Condon   pp. 366-367
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Weeds of non crop situations, including aquatics

Aquatic weed control in irrigation channels
A.C. Arvier   pp. 369-371
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Control of water couch Paspalum paspaloides with amitrole and ammonium thiocyanate
J.A. Ritchie and G.R. Sainty   pp. 371-374
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Non selective control of whitehorse nettle
N.S. Welsh   pp. 374-376
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Forest and woody plant weeds

Chemical control of Eucalyptus populnea – effect of time delay between treatment and felling
J.A. Robertson   p. 378
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Control of Eucalyptus species by stem injection techniques with tordon herbicides
A.R. Murphy   pp. 379-380
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Control of Eucalyptus regrowth with picloram-based herbicides
B.L. Campbell   pp. 380-382
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The role of herbicides in assisting establishment of Pinus radiata in New Zealand
G.W. Mason   pp. 382-384
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Roadside scrub control
R.M.W. Wallace   p. 385
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The problem of boneseed in Victoria
N.S. Welsh   pp. 386-387
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Opportunity cost of weed control in Pinus radiata plantations
J.B. Jack   pp. 388-390
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