Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Results 1-3 of 36
Page 185
To see if there were significant differences in the relative importance of the six
weeds over the two seasons or between maps , correlation coefficients were
calculated for cover values . The correlation coefficient will be close to 1 . 0 where
the ...
To see if there were significant differences in the relative importance of the six
weeds over the two seasons or between maps , correlation coefficients were
calculated for cover values . The correlation coefficient will be close to 1 . 0 where
the ...
Page 186
186 The cover data are important in four ways ; for assessing variation between
years , variation between maps , the relative and absolute importance of the
different species and the overall levels of total weed cover . The two to four - fold
...
186 The cover data are important in four ways ; for assessing variation between
years , variation between maps , the relative and absolute importance of the
different species and the overall levels of total weed cover . The two to four - fold
...
Page 194
One year after application , daisy cover in both 2 , 4 - D formulations and all
paraquat treatments , was still significantly less than that in untreated control .
Trial F : In this trial daisy cover was significantly reduced by all treatments with no
...
One year after application , daisy cover in both 2 , 4 - D formulations and all
paraquat treatments , was still significantly less than that in untreated control .
Trial F : In this trial daisy cover was significantly reduced by all treatments with no
...
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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