Vol. 34 (1981)

Proceedings of the New Zealand Weed and Pest Control Conference - Volume 34

DOI: https://doi.org/10.30843/nzpp.1981.34

Published: 1981-08-01

Presidential address to the 33rd Conference 1980

G.C. Atkinson

14-14
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Opening address to the 33rd Conference 1980

E.K. Barrett, Tauranga County Council

15-16
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Control of certain hard to kill weed species in lucerne with hexazinone

P.M.S. Lane, M.J. Cornwell

17-20
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Effect of bacterial wilt and verticillium wilt on six lucerne cultivars

M.W. Dunbier, F.R. Sanderson, T.J. Ellis

21-24
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The effect of cutting management and fungicide application on coumestrol levels in three lucerne cultivars

R.G. Purves, N.D. Hood, M.W. Dunbier

25-28
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Weed control in seedling 'Grasslands maku' Lotus penduncalatus

M.P. Rolston, J.D. Henderson

29-33
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Weed control in sainfoin and serradella

J.D. Henderson

34-36
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A relationship between seed yield of white clover and density of yarrow

G.W. Bourdot, J.H.B. Butler

37-38
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Hemiptera and other insects on South Island lucerne and lotus seed crops 1980-81

R.P. Macfarlane, J.A. Wightman, R.P. Griffin, D.N.J. Whitford

39-42
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Fungicide seed treatment to improve establishment of ryegrass and other forage plants

R.E. Falloon

43-47
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Herbicides for buckwheat

A. Ingle, T.I. Cox

48-50
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Weed control in lentils

J.H.B. Butler, W.A. Jermyn

51-54
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Disease problems in the production of broad bean seed

R.S.S. Liew, R.E. Gaunt

55-58
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Weed control in asparagus seedlings

A. Rahman, P. Sanders, A. Thompson

59-62
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Weed control in newly transplanted asparagus

A. Rahman, A. Thompson, P. Sanders

63-66
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The use of glyphosate in asparagus - preliminary observations

T.I. Cox

67-69
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Invertebrate pests on asparagus in waikato

R.N. Watson, R.J. Townsend

70-75
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Control of seedling cleavers in young onions

J.J.C. Scheffer

76-78
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Fodder beet tolerance to lenacil

Martin langlands, J.H.B. Butler, G.A. Hurrell

79-80
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Control of weevils in seedling brassicas

K.M. Stewart

81-85
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Biology and control of grape phylloxera in North Island vineyards

P.D. King, J.S. Meekings, S.M. Smith

86-91
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Chlorpyrifos for insect control in grapes and kiwifruit

C.J. Sharpe, E.A. Upritchard

92-95
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Further evaluation of procymidone for grey mould control in grapes

D.J.I. Jacobson, B.P. O'Connor

96-99
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Further experiments with methiocarb on blueberries

P.T. Holland, D.W. McFarlane, G. Lawn

100-103
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More herbicides for soil conservation tree nurseries

A.N. Gilchrist

104-106
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The effect of different pasture cultivars on barley grass invasion

A.I. Popay, M.J. Harley, G. Crouchley

107-110
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Effect of pasture cover on the germination of certain weed seeds

H.T. Phung, A.I. Popay

111-113
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The effect of grazing and pasture species on the survival of Scotch thistle

M.J. Hartley

114-116
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Control of rushes and thistles in pastures by goat and sheep grazing

M.P. Rolston, M.G. Lambert, D.A. Clark, B.P. Devantier

117-121
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3,6-dichloropicolinic acid/MCPB for control of nodding thistle in pasture

G.R. Rutherford, P.D. Bell, C.D. Forgie

122-125
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Persistence of 3,6-dichloropicolinic acid and dicamba residues in the soil

A. Rahman, B.E. Manson, P. Sanders

126-129
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Control of Rautahi (Carex geminata) with glyphosate

P. Sanders, D.K. Edmonds, A.I. Popay

130-131
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Chemical control of mouse-ear hawkweed

F.A. Meeklah, R.B. Mitchell, H. McMillan

132-136
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Chemical control of daisies in otago/Southland pastures

F.A. Meeklah, R.B. Mitchell, H. McMillan

137-140
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Control of woolly nightshade

T.K. James

141-143
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Control of sweet brier using picloram, triclopyr and 2,4,5-T applied with modified drench gun

R.W. Bristol

144-147
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A comparison of a picloram/triclopyr mixture with other herbicides for blackberry control

C.D. Forgie, P.G. Lobb, P.J. Dryden

148-151
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The failure of fosamine and glyphosate to give long-term control of blackberry in Northland.

G.P. Dempsey

152-155
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Screening seed protectants against black field cricket

R.H. Blank, D.S. Bell, N.R. Cox

156-160
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Insecticide rates, seeding rates and australian soldier fly control in pasture

L.N. Robertson, R.H. Davison, A.C. Firth

161-163
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Isofenphos as a larvicide for black beetle

R.N. Watson, R.J. Townsend, R.S. Marsden

164-166
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Pyrethroid resistance mechanisms in porina caterpillars

T.W. Jordan, C.K. Chang

167-169
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The potential use of nematodes for the control of pasture pests

T.A. Jackson, R.A. Bedding, T.E.T. Trought, W.M. Kain, R. East

170-172
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Preliminary field studies on the use of an indigenous parasitic nematode for control of porina

W.M. Kain, T.K. Wyeth, A.J. Kale

173-175
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Control of grass weeds in maize fields showing decreased activity of EPTC + R25788

A. Rahman, B. Burney, T.K. James

176-179
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The effect of tillage technique on insect pest damage to seedling maize

Alan Carpenter

180-181
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Control of black beetle in maize using baits

R.N. Watson, R.J. Townsend, R.S. Marsden

182-185
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Tolerance of spring wheat cultivars to herbicides used for wild oat control

W.J.P. Mitchel

186-188
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The tolerance of barley cultivars to wild oat herbicides

J.H.B. Butler, F.C. Allen

189-191
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New products and control strategies for speckled leaf blotch in wheat

W.J. Thomson, J. Sutcliffe, R.E. Gaunt

192-194
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The timing of spray applications against powdery mildew and leaf rust in barley

L.G. Lim, R.E. Gaunt

195-198
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Comparison of proprietary formulations of paraquat in white clover seed crops

J.H.B. Butler, F.C. Allen, A.J. Lister

199-202
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DPX 4189 - A new herbicide for weeed control in cereals

M.J. Cornwell, P.M.S. Lane

203-205
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Decamethrin - A new pyrethroid insecticide for New Zealand growers

A.M. Cliffe, M.S. Venning

206-211
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Preliminary tests of the controlled droplet applications technique against a number of insect pests

T.E.T. Trought

212-215
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A comparison of controlled droplet application and hydraulic nozzles to control blue-green lucerne aphid and Argentine stem weevil

N.R. Wrenn, R.A. Skinner

216-220
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Interactions between artificial fertilisers and grass grub larvae: Preliminary studies

R.A. Prestidge, G.P. Burton, S. van_der_Zijpp

221-224
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Chemical control of grass grub in the southern North Island: Results of 1977-79 trials

Alan Carpenter, T.K. Wyeth, P.J.T. Allan

225-228
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Evaluation of the solid stream application technique for grass grub control in the northern North Island

R. East, B.E. Willoughby, n.R. Wrenn

229-233
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Do soil applied insecticides control grass grub beetles?

R.F. Henzell, D.R. Lauren, G.D.G. du Toit, N.R. Wrenn

234-238
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Insecticides for control of adult grass grub IV comparative activity of insecticides in contact and soil bioassays

P.T. Holland, R.F. Henzell, R.A. Skinner

239-242
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Comparison of two spray date prediction techniques for control of grass grub beetles

D.R. Lauren, R.F. Henzell, N.R. Wrenn

243-246
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