Vol. 51 (1998)

Proceedings of the New Zealand Plant Protection Conference - Volume 51

DOI: https://doi.org/10.30843/nzpp.1998.51

Published: 1998-08-01

Presidential address to the 50th NZ Plant Protection Conference on 19 August 1997

R.E. Falloon

xv-xvi
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Secretary's annual report - 1997/98

M.R. Butcher

xvii-xviii
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Clover root weevil: Observations on differences between 1997 and 1998 summer populations in the Waikato

P.J. Addison, B. Willoughby, S. Hardwick, P.J. Gerard

1-4
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Laboratory investigations into feeding preferences of adult Sitona lepidus Gyllenhall

S. Hardwick

5-8
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Beauveria bassiana as a potential biocontrol agent against the clover root weevil, Sitona lepidus.

B.E. Willoughby, T.R. Glare, F.J. Kettlewell, T.L. Nelson

9-15
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Potential to enhance the efficacy of Microctonus hyperodae Loan

C.B. Phillips, J.R. Proffitt, S.L. Goldson

16-22
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Influence of liquid food on fecundity and longevity of Microctonus hyperodae Loan

C.B. Phillips

23-27
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Relationship between aerial shoot and root biomass in Californian thistle

G.W. Bourdot, D.M. Leathwick, G.A. Hurrell, D.J. Saville

28-32
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Survival of nodding thistle (Carduus nutans) seed buried at different soil depths in four soils

T.K. James, A. Rahman, D.A. Wardle, K.I. Bonner

33-37
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Nationwide survey of pests and diseases of cereal and grass seed crops in New Zealand. 1. Arthropods and molluscs.

D. Bejakovich, W.D. Pearson, M.R. O'Donnell

38-50
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Nationwide survey of pests and diseases of cereal and grass seed crops in New Zealand. 2. Fungi and bacteria

M. Braithwaite, B.J.R. Alexander, R.L.M. Adams

51-59
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Control of hemipteran pests in lucerne and red clover seed crops using lambda-cyhalothrin

N.C. Schroeder

60-65
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Effects of fungicide rates and timing on control of stripe rust in wheat

M. Braithwaite, M.G. Cromey, D.J. Saville, T. Cookson

66-70
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The effectiveness of stripe rust resistance gene YR18 in wheat cultivars

S.L.H. Viljanen-Rollinson, M.G. Cromey

71-75
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Browntop seed production: weed competition effects and herbicide tolerance

M.P. Rolston, W. Archie, K. Reddy

76-79
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Phalaris seed production: control of Rumex and herbicide tolerance

K. Reddy, M.P. Rolston, W.J. Archie

80-83
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Halosulfuron for selective control of purple nutsedge in maize

A. Rahman, T.K. James, P. Sanders, M. Lane

84-89
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In vitro testing for biological control of Aphanomyces euteiches

S.A. Wakelin, T. McCarthy A. Stewart, M. Walter

90-95
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Persistence and survival of saprophytic fungi antagonistic to Botrytis cinerea on kiwifruit leaves

K.S.H. Boyd-Wilson, J.H. Perry, M. Walter

96-101
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Isolation and in vitro screening of soil fungi for biological control of Sclerotinia sclerotiorum

N. Rabeendran, E.E. Jones, A. Stewart

102-106
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Distribution of beneficial bacteria on nashi and apple flowers using honey bees

D.A. Cornish, M.D. Voyle, H.M. Haine, R.M. Goodwin, J.L. Vanneste

107-111
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The effect of six postharvest temperature regimes on ripe rots of 'Hass' avocado

K.R. Everett, L. Korsten

112-116
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Evaluation of onion downy mildew disease risk in New Zealand using meteorological forecasting criteria

S.A. Whiteman, R.M. Beresford

117-122
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Soft fungicides for the control of Botrytis cinerea in vitro and in vivo on kiwifruit

H.A. Pak, S. Rasim, M.A. Manning, R.A. Fullerton

123-129
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Soil-incorporation of fungicides for control of clubroot of vegetable brassicas

L-H. Cheah, B.B.C. Page, J.P. Koolaard

130-133
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Camellia flower blight in New Zealand

C. Taylor, P. Long

134-137
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Cholinesterase and glutathione S-transferase in the earthworm Apporectodea caliginosa as biomarkers of organophosphate exposure

L.H. Booth, V. Heppelthwaite, C.T. Eason

138-142
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Target and non-target impacts from diazinon applied against Dasineura mali in a Canterbury apple orchard

G.M. Burnip, A.R. Gibb, D.M. Suckling

143-147
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Soil degradation of diazinon and its effect on the emergence of apple leafcurling midge

J.T. Smith, R.B. Chapman, C.M. Frampton

148-151
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Envirosol technology - a new approach to fungicide application in greenhouses

H. Krishna, C. Stephens, A. Carpenter, N. Grant, G. Galbraith, M. Starr, R. Lill, R.F. Ryan

152-156
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Degradation and movement of terbuthylazine in soil

T.K. James, A. Rahman, P.T. Holland, D.E. McNaughton, M. Heiermann

157-161
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Evaluation of a novel adjuvant for use with glyphosate on perennial ryegrass

R.J. Murray, R.E. Gaskin, M.R. Grassam

162-165
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Integrated fruit production (IFP) for New Zealand pipfruit: evaluation of pest management recommendations

J.T.S. Walker, C.H. Wearing, S.J. Bradley, P.W. Shaw, G.M. Burnip, A.R. Tomkins, C. Richardson, A.J. Hodson

166-172
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The use of pheromone traps for leafroller action thresholds in pipfruit

S.J. Bradley, J.T.S. Walker, C.H. Wearing, P.W. Shaw, A.J. Hodson

173-178
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Control of leafrollers in avocados

P.A. Brookbanks

179-183
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The effectiveness of different insecticide programmes for kiwifruit

C.E. McKenna

184-188
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Control of oriental fruit moth (Grapholita molesta) on golden queen peaches

V.C. Murrell, P.L. Lo

189-194
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Use of organic and green mulches in an apple orchard

M.J. Hartley, A. Rahman

195-198
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Effects of heating rate on the mortality of lightbrown apple moth

S.L. Alderson, B.C. Waddell, A.N. Ryan

199-203
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Upper thermotolerance of New Zealand flower thrips Thrips obscuratus (Crawford)

G.F. McLaren, J.A. Fraser

204-210
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Effects of high-pressure water jets on armoured scale insects and other contaminants of harvested kiwifuit

D.C. Whiting, L.E. Hoy, P.G. Connolly, R.M. McDonald

211-215
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Prospects and risks of biological control of wilding Pinus contorta in New Zealand

E.G. Brockerhoff, M. Kay

216-223
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Potential agents for eradication or control of gypsy moth in New Zealand

T.R. Glare, N.D. Barlow, P.J. Walsh

224-229
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Susceptibility of willows to oviposition by the willow sawfly, Nematus oligospilus

J.G. Charles, D.J. Allan, L. Fung

230-234
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Decay potential of basidiomycete fungi from Pinus radiata

A. Ah Chee, R.L. Farrell, A. Stewart, R.A. Hill

235-240
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Growth of Eucalyptus nitens after application of herbicide to control parsley dropwort

H. McKenzie, N. Davenhill, H. Gifford, A. Hawke

241-244
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Can insects transmit rabbit haemorrhagic disease virus?

B.I. P Barratt, C.M. Ferguson, A.C.G. Heath, A.A. Evans, R.A.S. Logan

245-250
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Selective control of weeds in New Zealand wetlands

P.D. Champion

251-254
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Biology and control of pypgrass

K.C. Harrington, L.M. Hodder, H.A. Outred

255-259
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Poster Abstracts

Diseases of maize in Waikato and South Auckland

P.G. Broadhurst

260-260
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Phoma disease of wasabi in New Zealand

P.G. Broadhurst, P.J. Wright

260-260
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Using elicitor to activate plant defense against fire blight

S.C. Gouk, S.V. Thomson, R.J. Boyd

261-261
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FIREWORKS - a windows based computer programme for prediction of fire blight of apples

S.C. Gouk, M. Spink, M.R. Laurenson

261-261
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mccEh252, a new microcin produced by Erwinia herbicola

D.A. Cornish, J. Yu, J.L. Vanneste

262-262
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Estimating biomass of Botrytis cinerea

V. Vingnana Singam, P. Long

262-262
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Asparagus ilarvirus 2 (AV2) transmission in asparagus seed

M.V. Jaspers, M.N. Pearson

263-263
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Forecasting barley yellow dwarf virus in Canterbury winter-sown cereals

D.A.J. Teulon, M.A.W. Stufkens

263-263
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Immunising plants - developing antibody fragments against a potyvirus replication protein

D. Webster, P. Guy, R. Forster

264-264
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Isolation and culture of Ciborinia camelliae

C. Taylor, P. Long

264-264
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Penconazole for the control of Septoria cucurbitacearum in cucurbits

R.D. Welsh

265-265
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Pathogenicity of Erwinia carotovora subsp. carotovora, Fusarium solani and Rhizoctonia spp. to calla

P.J. Wright

265-265
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A technique for monitoring adult emergence of Pezothrips kellyanus from the soil

K. Froud

266-266
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Sampling earwigs in apple orchards

S. Pawson, D.M. Suckling, G.M. Burnip, A.R. Gibb

266-266
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Tree Pests: Some recent arrivals in New Zealand

K.J. Froud, J.G. Charles, D.J. Allan

267-267
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Australian black beetle Adoryophorus couloni (Burmeister) extends its range on Banks Peninsula

M.J. Gorton, R.B. Chapman, R.J. Townsend

267-267
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Farmer observations on the impact of clover root weevil (Sitona lepidus) on Waikato farms

B. Willoughby, F. Kettlewell

268-268
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