Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 48
Seed Yields : In the browntop and phalaris trials weed control by herbicides
increased seed yield by up to 97 and 136 % respectively . The benefits from
weed control in these two trials were associated with an initial high percentage of
ground ...
Seed Yields : In the browntop and phalaris trials weed control by herbicides
increased seed yield by up to 97 and 136 % respectively . The benefits from
weed control in these two trials were associated with an initial high percentage of
ground ...
Page 183
INTRODUCTION Weeds interfere with man ' s production of plants and animals
thereby incurring costs ; the costs of weed control and of lost production . The
former cost is easily assessed since the costs of herbicides , cultivation and other
...
INTRODUCTION Weeds interfere with man ' s production of plants and animals
thereby incurring costs ; the costs of weed control and of lost production . The
former cost is easily assessed since the costs of herbicides , cultivation and other
...
Page 203
Asparagus — Weed control . Agdex 266 / 640 , Agnote , Dept . of Agriculture ,
Govt . of Victoria , Melborne . Franklin , S . J . , Bussell , W . T . , Cox , T . I . and
Tate , K . G . , 1980 . Asparagus - establishment and management . Aglink HPP
125 ...
Asparagus — Weed control . Agdex 266 / 640 , Agnote , Dept . of Agriculture ,
Govt . of Victoria , Melborne . Franklin , S . J . , Bussell , W . T . , Cox , T . I . and
Tate , K . G . , 1980 . Asparagus - establishment and management . Aglink HPP
125 ...
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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