Proceedings of the New Zealand Weed and Pest Control Conference1988 - Pesticides |
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Page 85
... aphids , indicated that highly resistant aphids are present at Pukekohe . INTRODUCTION Failures to control green peach aphid in potatoes have been recorded in field trials by Fellowes and Ferguson ( 1974 ) . They concluded that ...
... aphids , indicated that highly resistant aphids are present at Pukekohe . INTRODUCTION Failures to control green peach aphid in potatoes have been recorded in field trials by Fellowes and Ferguson ( 1974 ) . They concluded that ...
Page 86
... aphids were maintained at 25 ± 1 ° C for 48 h until mortality was assessed . Aphids exhibiting no movement when touched were classified as dead . A typical experiment consisted of 4-5 concentrations of an insecticide for each of two aphid ...
... aphids were maintained at 25 ± 1 ° C for 48 h until mortality was assessed . Aphids exhibiting no movement when touched were classified as dead . A typical experiment consisted of 4-5 concentrations of an insecticide for each of two aphid ...
Page 88
... aphid from various sites , when exposed to diagnostic concentrations of two insecticides and a synergist , piperonyl butoxide ( PB ) . Untreated mortality was zero . Pirimicarb + PB ( 10 mg ai / litre , 1:10 w / w ) Demeton - s - methyl ...
... aphid from various sites , when exposed to diagnostic concentrations of two insecticides and a synergist , piperonyl butoxide ( PB ) . Untreated mortality was zero . Pirimicarb + PB ( 10 mg ai / litre , 1:10 w / w ) Demeton - s - methyl ...
Contents
Author Index | 9 |
Address by Sir David Beattie to 40th Annual Conference | 15 |
CEREALS | 21 |
Copyright | |
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41st N.Z. Weed activity alligator weed aphid application asparagus assessed Auckland barley bioassay BYDV Canterbury cereals chemical clethodim crop cultivars cyproconazole damage diclofop-methyl disease DSIR effect eggs field flowering fluazifop-butyl fluvalinate foliage fruit fungicides g/ha glyphosate gorse grass grub grass weeds growers Hamilton clay loam herbicides Horotiu sandy loam infection insecticide kg/ha kiwifruit larvae leaf litres/ha loam soil MCPA mite miticides mulch myclobutanil nodding thistle NZ Weed orchards P.O. Box paclobutrazol Palmerston North pasture pendimethalin Pest Control Conf picloram pirimicarb plants plots Popay populations Proc programme propargite propiconazole Pukekohe quizalofop regrowth replicates Research residues resistance rosettes Ruakura ryegrass samples seed seedlings sethoxydim shoot significantly Silwet L-77 simazine spray surfactant susceptible Table temperature tested thrips tillers tip rot translocation treated treatment trees trial triasulfuron untreated uptake Weed and Pest weed control weeks yield Zealand