Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 86
The trees used were 9 to 10 month - old radiata pine seedlings transplanted at 0 .
5 x 0 . 5 m spacing . ... High rates were used in Trial 1 ( 6 , 10 and 14 kg ai / ha )
to ensure that significant tree damage occurred . Since an unexpected result ...
The trees used were 9 to 10 month - old radiata pine seedlings transplanted at 0 .
5 x 0 . 5 m spacing . ... High rates were used in Trial 1 ( 6 , 10 and 14 kg ai / ha )
to ensure that significant tree damage occurred . Since an unexpected result ...
Page 87
This strongly suggests that foliar uptake is an important source of tree damage
with sprayed formulations of hexazinone . ... 05 ) difference in survival between
the sprayed formulations at the highest rate on the exposed trees ; survival with
the ...
This strongly suggests that foliar uptake is an important source of tree damage
with sprayed formulations of hexazinone . ... 05 ) difference in survival between
the sprayed formulations at the highest rate on the exposed trees ; survival with
the ...
Page 104
104 SUMMER RELEASE SPRAYING OF BLACK WALNUT B . J . COSSLETT
Forest Research Institute , Christchurch SUMMARY Winter spray releasing of
black walnut ( Juglans nigra ) is not always sufficient to keep trees weed - free ...
104 SUMMER RELEASE SPRAYING OF BLACK WALNUT B . J . COSSLETT
Forest Research Institute , Christchurch SUMMARY Winter spray releasing of
black walnut ( Juglans nigra ) is not always sufficient to keep trees weed - free ...
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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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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