Vol. 42 (1989)

Proceedings of the New Zealand Weed and Pest Control Conference - Volume 42

DOI: https://doi.org/10.30843/nzpp.1989.42

Published: 1989-01-08

Presidential address to the 41st Annual Conference

M.J. Hartley

13-14
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Annual report 1988-89

A.J. Popay

14-14
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Resource allocations for future weed control activities

J.H. Combellack

15-31
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The role of government research in achieving safe pest management

S.L. Goldson, R.P. Pottinger

32-34
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Pasture tolerance to spring applications of the herbicide thiameturon-methyl

A. Rahman, P. Martin

35-38
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Distribution and cross-tolerance of MCPA-tolerant nodding thistle

K.C. Harrington

39-42
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Biological and economic effects of surfactant addition to MCPA for giant buttercup (Ranunculus acris) control

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

43-47
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Establishment and seasonality of two ragwort feeding insects at Hanmer

H.M. Harman, P. Syrett

48-51
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Introduction of the crown weevil (Trichosirocalus horridus) as an additional biocontrol agent against nodding thistle

C.T. Jessep

52-54
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Insecticidal control of arnyworm outbreaks on flood damaged pasture

R.H. Blank, N.R. Wrenn, P.L. Lo

55-59
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Evaluation of mob stocking for control of grass grub

R.F. van_Toor, C.M. Ferguson, b.I.P. Barratt

60-62
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Screening of grass grub populations and soil types for their influence on pathogenicity of the bacterium Serratia entomophila

T.A. Jackson, H. Macnab, M.L. Garnham

63-66
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The effect of trypsin inhibitors on grass grub (Costelytra zealandica (White)) larval growth and trypsin activity

J.J. Dymock, W.A. Laing, J.T. Christeller, B.D. Shaw

67-70
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Diflubenzuron for porina control in otago

C.M. Ferguson, P.A. Jones, B.I.P. Barratt

71-72
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The effects of lolitrem B on Argentine stem weevil larvae

J.J. Dymock, R.A. Prestidge, D.D. Rowan

73-75
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The toxicities of chlorpyrifos and fenitrothion to Microctonus aethiopoides and Sitona discoideus

M.R. McNeill, R.B. Chapman

76-80
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The efficiency of sampling for aphid predators from lucerne

D.M. Leathwick, D.R. Penman

81-85
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Laboratory studies of Trifolium uniflorum root consumption by grass grub (Costelytra zealandica)

J.J. Dymock, V.A. Hunt

86-87
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Silene vulgaris: a new grass grub resistant plant

O.R.W. Sutherland, J.J. Dymock, G.A. Lane, G.B. Russell

88-90
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Biological activity of DPX-L5300 in some New Zealand soils

T.K. James, A. Rahman, J. Mortimer

91-94
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Clethodim - a post emergence herbicide for selective annual and perennial grass weed control in broadleaf crops

G.W. Kerse, D.L. Ballard, A.M. Cliffe

95-99
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Broadleaf weed herbicide effects on wild oat: implications for tank mixing herbicides

Mitchell andrews, Alex V. Jones, Morag E. Andrews

100-104
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The susceptibility of environmentally stressed Avena spp. to sequential applications of gibberellic acid and post emergence herbicides

Ross L. Dickson, Roger J. Field, mitchell Andrews

105-109
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Effect of simulated rainfall and adjuvants on the activity of some grass herbicides

A. Rahman, T.K. James

110-113
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Cyproconazole - a new DMI fungicide

G.W. Kerse, D.L. Ballard

114-118
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Annual grass weed control with haloxyfop, a selective post emergence herbicide

P.J. Dryden

119-120
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Field evalution of Pinus radiata tolerance to triclopyr

G.W. Saville

121-123
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Cost effective herbicides for Yorkshire fog (Holcus lanatus) control

J.W. Ray, N.A. Davenhill, A.L. Vanner

124-127
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The effect of surfactants on the uptake and translocation of glyphosate in Yorkshire fog

R.E. Gaskin, J.A. Zabkiewicz

128-131
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Evaluation of techniques to measure aerial spray deposition

B. Richardson, J. Ray, A. Vanner

132-136
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The introduction of gorse spider mite, Tetranychus lintearius, for biological control of gorse

R.L. Hill, A.H. Gourlay, P.J. Wigley

137-139
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Susceptibility of eucalyptus tortoise beetle (Paropsis charybdis) to Bacillus thuringiensis var. San Diego

T.A. Jackson, G.A. Poinar

140-142
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Optimum rates of oxyfluorfen for different poplar and willow clones

A.N. Gilchrist

143-145
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Investigating the impact of protectant fungicides on integrated mite control. i.A. modelling perspective

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

146-151
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Investigating the impact of protectant fungicides on integrated mite control. II. results of three field experiments

J.T.S. Walker, C.H. Wearing, P.W. Shaw, J.G. Charles, A.J. Hayes

152-158
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Frequency of infection periods for Venturia inaequalis in New Zealand and implications for fungicide use

R.M. Beresford, M.J. Salinger, P.E. Bruce, P.J. Brook

159-164
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Use of forecast and monitored weather information for timing apple black spot fungicide applications in Canterbury

D.W. Manktelow, R.M. Beresford, M.J. Salinger, P.E. Bruce, R.E. Gaunt

165-169
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Fungicide evaluation for control of blossom blight of nectarines

R.S. Gawith, K.G. Tate

170-173
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Control of post-harvest ripening decays of nectarines with fungicide treatments

K.G. Tate, R.S. Gawith, L.H. Cheah, A.W. Hunt

174-177
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Control of powdery mildew of grapes with plant extracts

G. Herger, I. Harvey, T. Jenkins, R. Alexander

178-181
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The incidence of three Diaspid scales on kiwifruit in New Zealand

J.A. Berry, C.F. Morales, M.G. Hill, B.J. Lofroth, D.J. Allan

182-186
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Toxicity of lime sulphur to armoured scale

R.H. Blank, M.H. Olson

187-190
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Lime sulphur for armoured scale and lichen control on kiwifruit

R.H. Blank, M.H. Olson

191-194
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Pesticides for use close to and during harvest of persimmons

R.A. Prestidge, P.T. Holland, A.D. Clarke, C.P. Malcolm

195-199
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Significance of and monitoring for alien fruit flies (Tephritidae)

J.M. Cowley, E.R. Frampton

200-203
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Procedures for fruit fly (Tephritidae) eradication in New Zealand

B.P. Stephenson

204-208
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The effect of weed removal on growth of young apricot trees

R.B. Mitchell, R.J. Abernethy

209-212
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The effects of fallow and herbicide on wheat production in Canterbury

R.T. Alexander, J.H.B. Butler

213-216
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Disease effects on radiation interception in barley crops

H.G. Whelan, R.E. Gaunt

217-220
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Control of scald and net blotch of barley with DMI fungicides

J. Edmund Sheridan, david K. Nendick

221-224
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Effect of nitrate concentrations and additional amino acids on the susceptibility of wheat to chlorsulfuron

Farhad Dastgheib, Mitchell Andrews, Roger J. Field

225-228
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Status of introduced larval parasitoids of tomato fruitworm

G.P. Walker, P.J. Cameron

229-232
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Aphid control with RH7988

T.J.B. Herman, R.B. Chapman

233-237
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Garden weevil life cycle and insecticides for its control in asparagus

R.A. Prestidge, B. Willoughby

238-242
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Fungicidal control of Stemphylium leaf spot of asparagus

K.G. Tate, L.H. Cheah, A.W. Hunt, H. Dick

243-246
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Powdery mildew of peas; possible causes of recent epidemics and prospects for control

R.E. Falloon, A.F. McErlich, R.E. Scott

247-250
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Response of potatoes, onions and tomatoes to herbicides used for brushweed control

P.G. Lobb

251-253
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Control of powdery mildew (Erysiphe pisi) with penconazole

G.B. Follas, R.D. Welsh

254-255
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Alternative insecticides for control of lepidoptera on cabbages

P.J. Cameron

256-258
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Control of black vine weevil (Otiorhynchus sulcatus (F.)) larvae with parasitic nematodes and fungal pathogens

B.I.P. Barratt, C.M. Ferguson, T.A. Jackson

259-261
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Carbaryl for control of black vine weevil (Otiorhynchus sulcatus (F.)) on rhododendrons

B.I.P. Barratt, D.R. Lauren, C.M. Snelling, C.M. Ferguson

262-265
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Evaluation of fungicides for control of fairy ringspot disease in carnations

M. Braithwaite, R.C. Close, D.J. Saville

266-268
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Evaluation of acaricides for control of Melittiphus alvearius mite in export bee packages

R.F. van_Toor

269-273
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Melittobia spp. as parasitoids of bumble and lucerne leafcutting bees and their control in New Zealand

R.P. Macfarlane, B.J. Donovan

274-277
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The New Zealand Committee on Pesticide resistance 1989 Summary

R.W. Prince, M.S. Moore, C.H. Wearing

278-292
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