Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 120
ATRAZINE RESIDUES UNDER COMMERCIAL MAIZE CROPPING CONDITIONS
R. W. NAISH and C. D. FORGIE Ivon Watkins-Dow Ltd, New Plymouth and
Hastings Summary A bioassay method was used to assess the persistence of ...
ATRAZINE RESIDUES UNDER COMMERCIAL MAIZE CROPPING CONDITIONS
R. W. NAISH and C. D. FORGIE Ivon Watkins-Dow Ltd, New Plymouth and
Hastings Summary A bioassay method was used to assess the persistence of ...
Page 135
METOLACHLOR FOR CONTROL OF SUMMER GRASSES' IN MAIZE G. R.
ROWE, B. P. O'CONNOR and T. M. PATTERSON ICI New Zealand Ltd., Hamilton
and Palmerston North and Ciba Geigy New Zealand Ltd., Cambridge Summary ...
METOLACHLOR FOR CONTROL OF SUMMER GRASSES' IN MAIZE G. R.
ROWE, B. P. O'CONNOR and T. M. PATTERSON ICI New Zealand Ltd., Hamilton
and Palmerston North and Ciba Geigy New Zealand Ltd., Cambridge Summary ...
Page 146
Army caterpillar Effects were assessed after 5 days feeding on maize plants .
Larvae on untreated maize had eaten virtually all the available foliage while
feeding activity was reduced on treated maize ( Fig . 1 ) . Approximately 65 , 75
and 55 ...
Army caterpillar Effects were assessed after 5 days feeding on maize plants .
Larvae on untreated maize had eaten virtually all the available foliage while
feeding activity was reduced on treated maize ( Fig . 1 ) . Approximately 65 , 75
and 55 ...
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Contents
Notillage establishment of lucerne G C Atkinson | 9 |
Lucerne insect survey K G Somerfield and P A Burnett | 14 |
Preliminary studies of chemical control of bluegreen lucerne aphid | 23 |
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activity adults Agricultural aphid appeared application areas assessed atrazine Auckland autumn barley grass beetle caused chemical clover compared crop cultivars damage DISCUSSION disease early effect emergence established experiment field four fruit further gave grass grub growth Hamilton harvest herbicides higher important increased indicated infestation insect insecticides INTRODUCTION kg/ha larvae leaf leaves less lucerne maize major mean measured method mite months N.Z. Weed North numbers obtained occurred pasture period Pest Control Conf plants plots population present Proc production rates recorded reduced REFERENCES replicates reported Research residual resistant root ryegrass samples season seed seedlings selected showed shown significant significantly similar soil sowing sown species spray spring stage standard stem studies Summary summer Table tested treated treatments trees trials untreated Weed and Pest weed control weeks weevil weight winter yield Zealand