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Proceedings of the NZ Weed and Pest Control Conference 36 (1983)

Introduction

Presidential address to the 35th Conference 1982

M.J. Esson   pp. 14-15

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Annual report 1982-83

M.J. Hartley   p. 16

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Legumes

Control of ragwort and nodding thistles in lucerne with hexazinone

T.K. James and J. Mortimer   pp. 17-20

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Screening red clover cultivars for tolerance to 2, 4-D

J.D. Henderson and R.B. Claydon   pp. 21-24

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Containment and dispersal of spotted alfalfa aphid in the Northern North Island

B.H. Rohitha, R.P. Pottinger and N.R. Wrenn   pp. 25-29

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Field technique to establish a replicated range of sitona weevil densities

S.L. Goldson   pp. 30-32

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Weed control in seedling sulla

M.J. Watson and A.N. Gilchrist   pp. 33-37

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Scrub Weeds

The status of lantana in New Zealand

R.L. Hill and A.A. Seawright   pp. 38-40

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A preliminary look at DPX 6376 for control of mature broom

J.M. Balneaves and B.J. Cosslett   pp. 41-42

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Herbicide additives to 2,4,5-T for gorse control

M.J. Hartley, J.M. Balneaves and A.I. Popay   pp. 43-48

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Control of gorse bushes with a motorised knapsack sprayer

A.I. Popay and D.K. Edmonds   pp. 49-51

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Response of seedling gorse to fertilisers

G.W. Ivens and F. Mlowe   pp. 52-55

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Prospects for the biological control of gorse

R.L. Hill   pp. 56-58

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Berry Fruit

Weed control in black currant cuttings

P.J. Rhodes and F.J. Tabley   pp. 59-61

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Accumulated crop response to black currant leaf spot control

W.T. McLaughlan, G.W. Kerse and K.A. McIntosh   pp. 62-66

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The effects of chemicals used on strawberry crops on introduced phytoseiid mites

M.R. Butcher and D.R. Penman   pp. 67-70

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Control of strawberry leaf spot

R.W. Prince   pp. 71-73

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Control of leaf spot in strawberries

W.F.T. Hartill, P.T. Holland and M. Eden   pp. 74-78

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Ridge fumigation for control of verticillium wilt in strawberries

K.G. Tate and L.H. Cheah   pp. 79-82

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Pasture Weeds

Effect of rushes on sheep carrying capacity

M.H. Hartley   pp. 83-85

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Effect of Scotch thistles on sheep growth rates

M.J. Hartley   pp. 86-88

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Effect of pasture competition on the survival and flowering of nodding thistle

D.K. Edmonds and A.I. Popay   pp. 89-92

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Timing of herbicide applications for nodding thistle control in Canterbury

G.A. Hurrell, G.W. Bourdot and J.H.B. Butler   pp. 93-95

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Pasture weed control by rope wick applicator

A. Thompson   pp. 96-98

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The influence of growth stage and application site on Californian thistle control by glyphosate

K.C. Harrington and G.W. Ivens   pp. 99-103

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Subtropical Fruit

Persistence of some soil-applied herbicides for kiwifruit

G.J. Wilson, A. Rahman and J.J.C. Scheffer   pp. 104-106

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Trials with pirimiphos-methyl/permethrin on kiwifruit

K.D. Kilsby and D. Steven   pp. 107-110

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Screening insecticides to protect tamarillo against grass grub adults

R.H. Blank, M.H. Olson and D.S. Bell   pp. 111-115

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Seasonality and control of aphids in tamarillos

M.H. Olson, R.H. Blank and P.T. Holland   pp. 116-120

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Tamarillo storage rot problems

R.E. Hampton, R.H. Blank, H.M. Dance and M.H. Olsen   pp. 121-124

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Horticultural Crops

Control of Didymella stem canker on glasshouse tomatoes

L.H. Cheah and J.J. Soteros   pp. 125-127

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Pheromone monitoring of Sceliodes cordalis, a pest of pepino

R.A. Galbreath and J.R. Clearwater   pp. 128-130

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Weed control in asparagus in Otago

F.A. Meeklah, R.B. Mitchell and H. McMillan   pp. 131-135

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Residual herbicides for weed control in established asparagus

A. Rahman and P. Sanders   pp. 136-139

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Orchards, Vineyards and Shelter

Insecticidal control of phylloxera on grapes

P.D. King, J.S. Meekings, S.M. Smith and D.R. Lauren   pp. 140-144

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Mealy bug control in grapes

P.W. Fisher   pp. 145-147

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Response of potatoes, grapes and kiwifruit to low rates of six commercially available pasture and brush weed herbicides

P.G. Lobb and G.W. Woon   pp. 148-150

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Defoliation by grass grub beetles in waikato orchards

R. East, B.E. Willoughby and M.S. Koller   pp. 151-155

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Selectivity of sethoxydim mixtures to vine crops and shelter tree species

R.W. Naish and P.G. Lobb   pp. 156-158

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Field Crops

Difenzoquat for wild oat control in ryegrass for seed production

D.J.I. Jacobsen   pp. 159-161

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Repellency and antifeedant activity of pyrethroids to diamondback moth

K. Kumar and R.B. Chapman   pp. 162-166

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Baits for control of greasy cutworm larvae I: Lab screening

N.A. Martin   pp. 167-170

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Baits for control of greasy cutwom II: field trials

M.G. Hill, A.W. Atkins and D.J. Allan   pp. 171-175

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Improved grass control by glyphosate using ammonium sulphate or surfactant

M.P. Rolston and J.R. Sedcole   pp. 176-179

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The germination behaviour of wireweed seed

A.E. Saunders and R.J. Field   pp. 180-184

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Pasture Pests

Evaluation of insecticides for lucerne flea control in pasture

N.R. Wrenn, R.P. Pottinger, P.R. Dentener and R.A. McGhie   pp. 185-189

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Conventional and microencapsulated spray and bait formulations for porina control

R.F. Henzell and D.R. Lauren   pp. 190-194

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The effect of moisture and method of application on the establishment of the entomophagous nematode Heterorhabditis bacteriophora in pasture

T.A. Jackson, B.W. Todd and W.M. Wouts   pp. 195-198

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The effects of different times of insecticide application on disease incidence in grass grub populations

A.J. Miln   pp. 199-202

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Insecticidal control of manuka beetle

A.J. Miln, A. Carpenter and L.H. Bates   pp. 203-206

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Feeding by slugs on some pasture plant species: laboratory experiments

G.M. Barker, B.E. Willoughby and R.P. Pottinger   pp. 207-211

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Slug damage to pasture renovated by direct drilling

C.M. Ferguson and B.I.P. Baratt   pp. 212-215

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Effect of tall fescue and ryegrass endophytes on Argentine stem weevil

G.M. Barker, R.P. Pottinger and P.J. Addison   pp. 216-219

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Preliminary results on the biochemical relationship between adult Argentine stem weevil and two endophytes in ryegrass

D.L. Gaynor, D.D. Rowan, G.C.M. Latch and S. Pilkington   pp. 220-224

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Chemical control of Argentine stem weevil in North Island pasture

R.A. Prestidge, S. Van der Zijpp and D. Badan   pp. 225-228

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Cereals

Control of atrazine-resistant fathen in maize

A. Rahman, T.K. James and J. Mortimer   pp. 229-232

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Chemical control of speckled leaf blotch and stripe rust in Kopara wheat

S. Woods, K.C. Chan and R.E. Gaunt   pp. 233-236

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Seed treatments for control of net blotch of barley

J.E. Sheridan and N. Grbavac   pp. 237-241

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Strategies for controlling net blotch in barley

J.E. Sheridan, N. Grbavac and L. Ballard   pp. 242-246

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New Products and Techniques

Determination of foliar uptake of herbicides - a review of techniques

R.J. Field   pp. 247-249

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Analysis of thermal summation models

S.P. Worner and D.R. Penman   pp. 250-254

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Comparison of CDA 'Micromax' units with standard fan nozzles for weed control

G.R. Rutherford and P.G. Lobb   pp. 255-257

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A comparison of the phytotoxic effects of mancozeb (coordination compound) with mixtures of maneb and zincĀ 

L.H. Cornford   pp. 258-260

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Bisclofentezin - a novel compound for controlling phytophagous mites

A.J. Read   pp. 261-264

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Hoe 35609 and Hoe 33171 - Two new selective grass herbicides

G.W. Kerse, F.A. Meeklah and R.I. Sunde   pp. 265-268

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A comparison of post-emergence herbicides for control of grass weeds

A. Rahman, T.K. James and J. Mortimer   pp. 269-272

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New fungicides for the control of blacksport in process pears

J.A. Geelen   pp. 273-276

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Material from these papers was presented at the New Zealand Plant Protection Society's Annual Conference held at Angus Inn Motor Hotel, Hastings on 9-11 August 1983.

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

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