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Proceedings of the NZ Plant Protection Conference 45 (1992)

Introduction

Presidential address to the 44th Conference 1991

R.P. Pottinger   pp. 14-16

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Annual report 1991/92

J.A. Zabkiewicz   p. 16

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NZPPS Research Scholarship - Tim Jenkins

  p. 16

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Vegetables and Ornamentals

Evaluation of Silwet L-77 for postharvest disinfestation of thrip in asparagus

B.H. Rohitha, R.E. Gaskin, T. Hartley and A.K. Karl   pp. 17-20

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Envirosols as postharvest fumigants for asparagus and cutflowers

A. Carpenter and A. Stocker   pp. 21-26

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Herbicides for control of two bindweed species (Calystegia silvatica and Convolvulus arvensis) in asparagus

A. Rahman and P. Sanders   pp. 27-30

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Scouting for lepidopteran pests in commercial cabbage fields

N.G. Beck, T.J.B. Herman and P.J. Cameron   pp. 31-34

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The effect of herbicide on weed control and yield of cabbages

R.J. Abernethy and R.B. Mitchell   pp. 35-37

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Incidence of thrips and aphids as potential virus vectors in field tomatoes

P.J. Cameron, T.J.B. Herman and J.D. Fletcher   pp. 38-42

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Fungicide evaluation for control of didymella stem canker of tomatoes

L.H. Cheah, D. Stuart, D. Guddop and A.W. Hunt   pp. 43-45

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Control of leaf spots in carrots and early blight in potatoes and tomatoes with difenoconazole

G.B. Follas and H.M. Beetz   pp. 46-49

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Yield losses due to weeds in supersweet corn and dwarf beans

M.J. Hartley   pp. 50-54

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Weed emergence and crop production under different cultivation regimes

M.J. Hartley   pp. 55-59

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Floral resources for natural enemies: the effect of Phacelia tanacetifolia (Hydrophyllaceae) on within-field distribution of hoverflies (Diptera: Syrphidae)

G.L. Lovei, D. McDougall, G. Bramley, D.J. Hodgson and S.D. Wratten   pp. 60-61

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The effect of mulch on the incidence of insect pests, natural enemies and plant damage in organically grown cauliflowers

G.L. Lovei and B. Bycroft   pp. 62-63

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Destruction of unwanted asparagus crops

P. Sanders and A. Rahman   pp. 64-66

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Field Crops

The effects of two seed treatments on downy mildew and root rot of garden peas

I.C. Harvey, P. Lallu, T.I. Knight and R.T. Alexander   pp. 67-71

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Fungicide seed treatments for the control of Ascochyta fabae f. sp. lentis on lentils

A.C. Russell and G. Hagerty   pp. 72-74

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Disease resistance in winter wheat cultivars and effects of foliar fungicides on yield

M.G. Cromey and R. Hanson   pp. 75-78

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Adaptation of a German herbicide advisory system (HERBASYS) to New Zealand conditions

P. Gunther, T.K. James, A. Rahman and W. Pestemer   pp. 79-83

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Weed control and soil persistence studies with dimethenamid in maize

A. Rahman and T.K. James   pp. 84-88

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Chlorsulfuron effects on nitrate assimilation in a susceptible wheat cultivar

F. Dastgheib, M.F. Barnes, J.D. Morton and M. Andrews   pp. 89-92

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Tine weeding effects on cereal crops with few weeds

A.I. Popay, W. Stiefel and E. Sorenson   pp. 93-94

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Fruit Crops

Control of alternaria and melanose on citrus using chlorothalonil and cupric hydroxide

M.H. Olson, R.H. Blank and A.J. Read   pp. 95-98

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Effect of pesticides on predation of soft wax scale by the steel-blue ladybird

P.L. Lo and R.H. Blank   pp. 99-102

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Evaluation of organic pest control agents

C.W. van Epenhuijsen, S. Wright and H.N. de Silva   pp. 103-110

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Thrips on nectarines in the spring

G.F. McLaren   pp. 111-115

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Postharvest control of diapausing two-spotted spider mite Tetranychus urticae Koch on fruit. I Comparison of insecticidal soaps and spray adjuvants

P.R. Dentener and S.M. Peetz   pp. 116-120

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Postharvest control of diapausing two-spotted spider mite Tetranychus urticae Koch on fruit. II Efficacy of Pulse on apples

S.M. Peetz and P.R. Dentener   pp. 121-125

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Measurement of sensitivity to DMI fungicides in populations of Uncinula necator

E. Shabi and R.E. Gaunt   pp. 126-128

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Field evaluation of a disease management system for peach brown rot in hawkes Bay

K.G. Tate and D.W. Manktelow   pp. 129-135

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Controlled atmospheres inhibit storage rot of cherries

D.W. Brash, L.H. Cheah and A.W. Hunt   pp. 136-137

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Changes in triforine sensitivity in populations of Monilinia fructicola from Hawkes Bay orchards

P.A.G. Elmer, M. Braithwaite and D.J. Saville   pp. 138-140

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Lemon tree borer damage on persimmon

B.H. Rohitha, T. Hartley and S.J. Franklin   pp. 141-142

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Herbicide tolerance of young nectarine trees

R.B. Mitchell and R.J. Abernethy   pp. 143-145

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Kiwifruit

Field evaluation of avermectin B1 for pest control on kiwifruit

A.R. Tomkins, A.J. Greaves, D.J. Wilson and C. Thomson   pp. 146-150

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Teflubenzuron and phosalone alone and in combination for pest control on kiwifruit. I Armoured scale insects

A.R. Tomkins   pp. 151-155

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Teflubenzuron and phosalone alone and in combination for pest control on kiwifruit. II Caterpillars, secondary pests and contaminants

A.R. Tomkins   pp. 156-161

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Thrip control with fluvalinate on kiwifruit

A.R. Tomkins, D.J. Wilson and C.Thomson   pp. 162-166

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Ovicidal activity of oils against lightbrown apple moth (Epiphyas postvittana) on kiwifruit leaves

A.R. Tomkins and C. Thomson   pp. 167-170

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Oil sprays and kiwifruit storage

P.S. Stevens and D. Steven   pp. 171-173

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A residual bioassay tehcnique to investigate scale crawler settlement on kiwifruit

R.H. Blank, P.L. Lo, G.S.C. Gill and M.H. Olson   pp. 174-179

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Sclerotinia infection in two kiwifruit orchards in the Bay of Plenty

H.H. Goh and S.N. Lyons   pp. 180-183

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Survival and viability of sclerotia of Sclerotinia selerotiorum in two kiwifruit orchards in the Bay of Plenty

H.H. Goh and S.N. Lyons   pp. 184-187

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Field observations of Sclerotinia sclerotiorum: apothecial development and sclerotial production

S.M. Hoyte, R.J. Bedford and S.C. Gouk   pp. 188-192

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Potential for biological control of botrytis stem-end rot of kiwifruit with Trichoderma spp

L.H. Cheah, R. Hill and A.W. Hunt   pp. 193-196

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Pasture Pests and Weeds

The effects of diflubenzuron on lucerne flea

P.J. Addison, A.C. Firth and A. Cliffe   pp. 197-200

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The effect of the endophytic fungus Acremonium lolii on adult black beetle (Heteronychus arator) feeding

O.J-P. Ball and R.A. Prestidge   pp. 201-204

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Variation in the critical photoperiod for diapause induction in Microctonus hyperodae, a parasitoid of Argentine stem weevil

S.L. Goldson and M.R. McNeill   pp. 205-209

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The effect of cool storage on the survival of the Argentine stem weevil parasitoid, Microctonus hyperodae loan

S.L. Goldson M.R. McNeill, J.R. Proffitt and D.B. Baird   pp. 210-214

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Oversown white clover seed and seedling loss from insects and fungal pathogens

B.I.P. Barratt and C.M. Ferguson   pp. 215-219

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Grass grub (Costelytra zealandica) populations under Pinus radiata agroforestry

B.E. Willoughby, M.F. Hawke and R.A. Prestidge   pp. 220-222

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White clover (Trifolium repens) resistance to 2, 4-D

A.I. Popay and A. Ingle   pp. 223-225

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Control of docks and buttercups with thifensulfuron in pasture

T.K. James, A. Rahman and M.J. Cornwell   pp. 226-230

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Urban Weed and Pest Control

Weed control in urban environments in New Zealand

A.I. Popay, G. Hoskins and R. Lewthwaite   pp. 231-234

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Influence of some factors on performance of the fatty acid herbicide 'Greenscape'

T.K. James and A. Rahman   pp. 235-238

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Insecticidal properties of the terpenoids polygodial, 9-deoxymuzigadial and azadirachtin

P.J. Gerard, L.D. Ruf, N.B. Perry and L.B. Foster   pp. 239-242

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A survey of European (Vespula spp.) and paper wasp (Polistes spp.) injuries in urban Auckland

J.J. Dymock and S.A. Forgie   pp. 243-246

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Forest and Scrub

Organosilicone surfactants help rainfastness of glyphosate on gorse and broom

J.M. Balneaves   pp. 247-250

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Gorse on the Chatham Islands: seed formation, arthropod associates and control

R.P. Macfarlane, J.M. Grindell and J.S. Dugdale   pp. 251-255

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Pendimethalin: a herbicide with potential for use in forest nurseries

A.L. Vanner   pp. 256-258

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Rates of terbuthylazine and its mixtures with terbumeton for weed control in poplar and willow nurseries

A.N. Gilchrist   pp. 259-261

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Seven-year growth response of radiata pine to herbaceous weed control

J. Balneaves and D. Henley   pp. 262-263

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Pipfruit

Ryania and pearslug control on nashi

C.H. Wearing   pp. 264-268

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Mortality responses of Nysius huttoni to dry-heat disinfection treatment for apples

D.B. Birtles, B.C. Waddell and J.H. Maindonald   pp. 269-273

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Evaluation of Silwet L-77 as an adjuvant for sprays to control apple pests and diseases

J.T.S. Walker, P.W. Shaw and P.J.G. Stevens   pp. 274-278

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Daily performance of orchard pheromone traps

D.M. Suckling and B. Brown   pp. 279-284

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A survey of weed control practices in New Zealand pipfruit orchards

K.C. Harrington, S.B. Berry and R.E.H. Sims   pp. 285-288

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Sensitivity of Venturia inaequalis (black spot) on apples to DMI fungicides in New Zealand

H.G. Whelan, M.R. Butcher and R.E. Gaunt   pp. 289-294

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Interactions between an antagonist, Erwinia herbicola and E. amylovora and potential for biological control of fireblight

S.V. Thomson and S.C. Gouk   pp. 295-300

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The effect of rain on the development of Erwinia amylovora and E. herbicola populations on apple flowers

S.V. Thomson and S.C. Gouk   pp. 301-303

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Measurement of sex pheromone in orchard air using electroantennogram apparatus

G. Karg, D.M. Suckling and E.R. Rumbo   pp. 304-306

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Material from these papers was presented at the New Zealand Plant Protection Society's Annual Conference held at Airport Hotel, Wellington on 11-13 August 1992.

This volume was edited by A.J. Popay and published by The New Zealand Plant Protection Society Inc.

Please refer to the terms of use.