Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 68
Survival rate of tree lucerne plants was 87 % and was unaffected by herbicide treatment . Many of the missing plants had been dug out by hares . None of the herbicides appeared to damage the tree lucerne , but some of them increased ...
Survival rate of tree lucerne plants was 87 % and was unaffected by herbicide treatment . Many of the missing plants had been dug out by hares . None of the herbicides appeared to damage the tree lucerne , but some of them increased ...
Page 267
Similarly , pretreatment of plants with ABA also brought about protection against herbicide injury . ... INTRODUCTION The economic and biological demands made upon new herbicides are steadily increasing . As a result , emphasis has been ...
Similarly , pretreatment of plants with ABA also brought about protection against herbicide injury . ... INTRODUCTION The economic and biological demands made upon new herbicides are steadily increasing . As a result , emphasis has been ...
Page 268
Twenty days after herbicide application plants were harvested , leaf necrosis was visually assessed and shoot fresh and dry weight determined . In a second experiment plants were grown individually in 10 cm diameter pots containing ...
Twenty days after herbicide application plants were harvested , leaf necrosis was visually assessed and shoot fresh and dry weight determined . In a second experiment plants were grown individually in 10 cm diameter pots containing ...
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Contents
Author Index | 9 |
PASTURE PESTS | 15 |
Field testing of seed protectants against black field cricket attack | 22 |
Copyright | |
31 other sections not shown
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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