Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 31
When diflubenzuron and teflubenzuron were compared at equal application rates
( laboratory bioassay experiments ) ... Dual applications of maldison and insect
growth regulators were no more effective than the organophosphate applied ...
When diflubenzuron and teflubenzuron were compared at equal application rates
( laboratory bioassay experiments ) ... Dual applications of maldison and insect
growth regulators were no more effective than the organophosphate applied ...
Page 89
EFFECT OF APPLICATION VOLUME AND SPRAY ADDITIVE CONCENTRATION
ON THE CONTROL OF BRACKEN J . W . RAY , A . L . VANNER and B .
RICHARDSON Forest Research Institute , Private Bag , Rotorua SUMMARY
Hardened ...
EFFECT OF APPLICATION VOLUME AND SPRAY ADDITIVE CONCENTRATION
ON THE CONTROL OF BRACKEN J . W . RAY , A . L . VANNER and B .
RICHARDSON Forest Research Institute , Private Bag , Rotorua SUMMARY
Hardened ...
Page 91
duced application volume was reduced to 20 litres / ha the same quantity of
glyphosate plus 50 ml of Silwet M ( 0 . 25 % v / v ) gave much poorer control ,
although the SRI did not change significantly . Similarly , applying 5 . 6 kg ai
asulam in ...
duced application volume was reduced to 20 litres / ha the same quantity of
glyphosate plus 50 ml of Silwet M ( 0 . 25 % v / v ) gave much poorer control ,
although the SRI did not change significantly . Similarly , applying 5 . 6 kg ai
asulam in ...
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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