Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 28
28 • - - - - diflubenzuron 10g ai / ha diflubenzuron 100ga i / ha A - - -
teflubenzuron 30g ai / ha * teflubenzuron 300g ai / ha ( a ) ( b ) 100 SED , I I II II III
I II % of untreated population remaining 57 237 132 148 22 1 Lucerne flea per
6m sweep ...
28 • - - - - diflubenzuron 10g ai / ha diflubenzuron 100ga i / ha A - - -
teflubenzuron 30g ai / ha * teflubenzuron 300g ai / ha ( a ) ( b ) 100 SED , I I II II III
I II % of untreated population remaining 57 237 132 148 22 1 Lucerne flea per
6m sweep ...
Page 123
Weevil population densities and levels of parasitism From 8 . 2 . 85 to 10 . 4 . 85
and 13 . 2 . 85 to 11 . 11 . 85 weevils were randomly collected at weekly intervals
from aestivation sites and a lucerne stand respectively . These were taken to the
...
Weevil population densities and levels of parasitism From 8 . 2 . 85 to 10 . 4 . 85
and 13 . 2 . 85 to 11 . 11 . 85 weevils were randomly collected at weekly intervals
from aestivation sites and a lucerne stand respectively . These were taken to the
...
Page 124
Darflold : unparasitisod woovil population - 1982 Tinwald : parasitised woovil
population - 1985 . . . . . . Tinwald : % parasitism - 1986 Tinwald : % parasitism -
1986 DROIT . . TORI number m - 2 % parasitism W . . to 1 / 2 173 174 175 176
178 ...
Darflold : unparasitisod woovil population - 1982 Tinwald : parasitised woovil
population - 1985 . . . . . . Tinwald : % parasitism - 1986 Tinwald : % parasitism -
1986 DROIT . . TORI number m - 2 % parasitism W . . to 1 / 2 173 174 175 176
178 ...
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Contents
Presidential Address | 13 |
Effect of application volume and spray additive concentration on the control | 89 |
The effect of metsulfuron on sweet brier M McD Turner G Iggo | 95 |
Copyright | |
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Common terms and phrases
activity adult aphid application asparagus assessed Auckland block caused Centre chemicals clopyralid compared counts cover crop damage density DISCUSSION disease DSIR effect eggs emergence establishment experiments field formulation four fruit fungicides gave glyphosate gorse grass grass grub ground growth Hamilton harvest height herbicide higher important increased indicated infested insect insecticide kg ai/ha larvae leaf leaves less levels lower lucerne March Mean measured METHODS months mortality North numbers observed occurred P.O. Box pasture Pest Control Conf plants plots population present Private Proc production pupae ragwort range rates reduced REFERENCES replicates reported Research residues root ryegrass samples scale season seed seedlings showed significant significantly similar soil spears species spray spring stage stem Table tested thistle treated treatments trees trials untreated vines Weed and Pest weed control weeks weevil whitefly yield Zealand