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Proceedings of the NZ Weed and Pest Control Conference 27 (1974)

Introduction

Presidential address

L.J. Matthews   p. xiv

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Annual report

M.J. Hartley   p. xv

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Editorial report

M.J. Hartley   p. xvi

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Scrub Weeds and Forestry

The response of gorse seedlings to defoliation and shading

M.P. Rolston and F. Sineiro-Carcia   pp. 2-5

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The effect of fertilisers and pasture competition on gorse growth and establishment

A. Thompson   pp. 6-10

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Control of gorse: additives for 2,4,5-T

I.C. Logan and W.T. McLaughlan   pp. 11-14

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The use of a mixture of terbuthylazine and terbuthylaton for control of grass in Pinus radiata plantations

A. Bowers and T.M. Patterson   pp. 15-18

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Interim evaluation of several soil sterilants for the control of contorta pine

N.A. Davenhill and D.S. Preest   pp. 19-23

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Himalaya honeysuckle - growth and control in new afforestation areas in Otago

C. Anstey   pp. 24-28

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A scoring system of scrub weeds

A. Bowers   pp. 29-31

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Identification of Species

Identification of storksbill (Erodium spp.)

A.J. Healy and K.R. West   pp. 34-40

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Identification of nightshades (Atropa and Solanum) in New Zealand

A.J. Healy   pp. 41-58

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Small Seed Crops

Contamination problems in herbage seed production

N.L. Shillito   pp. 60-62

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White clover seed crop: paraquat and carbetamide mixtures for weed control

I.C. Logan and R.N. Arnst   pp. 63-66

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Wild oat control in ryegrass for seed production

F C. Allen, T.J. Smallridge and G.W. Bourdot   pp. 67-71

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Barley Grass and Ragwort

Chemical control of barley grass under grazing conditions

M.J. Hartley, G.C. Atkinson, K. Bimbler and G.A. Douch   pp. 74-78

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The reliability of herbicides for barley grass control

.F.A. Meeklah and H. McRobb   pp. 79-81

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Control of barley grass and other pasture weeds with ethofumesate (NC8438)

L.K. Minter   pp. 82-84

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Control of barley grass by ethofumesate

F.C. Allen, M.J. Hartley and F.A. Meeklah   pp. 85-89

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Herbicide effects on ragwort and pasture

A. Thompson   pp. 90-93

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Crops - Herbicides

Weed control in potatoes at Pukekohe

G.J. Wilson   pp. 96-99

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The use of metribuzin on potatoes and tomatoes

T.I. Cox   pp. 100-104

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Evaluation of ethofumesate in red beet crops

T.I. Cox   pp. 105-108

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Dinitramine: a new incorporated herbicide for peas, beans and field brassicas

R.W. Naish and E.A. Upritchard   pp. 109-112

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Control of summer germinating annual grassweeds in maize with oil suspensions of atrazine

E.A. Upritchard and R.W. Naish   pp. 113-117

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Crops - Fungicides

Evaluation of the fungicides drazaxolon and PP395 for seed treatment of peas

I.C. Logan and R.N. Arnst   pp. 120-122

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Factors limiting the control of verticillium wilt in tobacco obtained with benzimidazole fungicides

W.F.T. Hartill and J.M. Campbell   pp. 123-129

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Economics of Weeds and Pests

Specific crop losses due to weeds

L.J. Matthews   pp. 132-134

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Impact of a subsidised noxious weed control scheme

R.W. Moody   pp. 135-138

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Assessment of economic losses in crops due to insects

A.D. Lowe   pp. 139-142

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Orchards and Vineyards

Methods of weed control in vineyards

B. Burney and L.J. Matthews   pp. 144-146

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Control of fruit pests with carbofuran

R.P. Eade   pp. 147-151

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Bupirimate evaluation for the control of apple powdery mildew

B.P. O'Connor   pp. 152-154

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Black spot of pears: control and non-control under New Zealand conditions

J.B. Corbin   pp. 155-160

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New Products

GS 29696-A new herbicide for non-selective weed control

T.M. Patterson and S.J. Rae   pp. 162-166

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Control of volunteer potatoes with glyphosate

T.I. Cox   pp. 167-168

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Effect of soil type on ethofumesate activity

T.I. Cox   pp. 169-170

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A new polyvinyl polymer spray additive for drift control

B.N. MacDiarmid   pp. 171-176

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A new anti-drift system for pesticide application

S.T. Aston   pp. 177-179

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Insect Pests

Control of adult stem weevil in ryegrass seed crops with chlorpyrifos

C.D. Forgie   pp. 182-186

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Chemical control of Argentine stem weevil (Hyperodes bonariensis Kuschel) in ryegrass seed crops

R.D. Welsh, R.W. Moore and R.P. Pottinger   pp. 187-190

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Chemical control of Argentine stem weevil in maize

A.G. Mackay and G.R. Rowe   pp. 191-193

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Army caterpillar control in North Island maize and barley with leptophos

A.G. Mackay and B.P. O'Connor   pp. 194-197

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Carrot rust-fly control at Pukekohe

G.J. Wilson   pp. 198-200

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Pasture Pests

A new organophosphorous compound for grass grub control

D.D. McPhail   pp. 202-203

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A new absorbed clay granule for diazinon and ethoprophos

B.N. MacDiarmid   pp. 204-207

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Chlormephos and quinalphos for grass grub control

B.N. MacDiarmid   pp. 208-209

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Insecticides to control soldier fly (Inopus rubriceps Macquart) in pasture

G.M. Dixon, C.B. Dyson and D.C. Grimmer   pp. 210-214

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Evaluation of carbofuran for the control of soldier fly in pasture

A.G. MacKay, G.R. Rowe and N.C. Guthrie   pp. 215-221

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Soldier fly - Progress with cultivation and chemical control

G.L.B. Cumberland, E.N. Honore and G.A. Farrell   pp. 222-227

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Insecticidal control of black beetle on a peat soil type

P.D. King and C.F. Mercer   pp. 228-229

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Material from these papers was presented at the New Zealand Plant Protection Society's Annual Conference held at Rutherford Hotel, Nelson on 13-15 August 1974.

This volume was edited by M.J. Hartley and published by The New Zealand Weed and Pest Control Society Inc.

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