Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 39
Of the information collected since the experiment's establishment , the most relevant to assessing long - term effects has been late - season yield data and corresponding foliar nitrogen levels measured using a micro - Kjeldahl method .
Of the information collected since the experiment's establishment , the most relevant to assessing long - term effects has been late - season yield data and corresponding foliar nitrogen levels measured using a micro - Kjeldahl method .
Page 48
Winter growth and seed yield of tall fescue was seriously reduced by low rates of diclofopmethyl and chlorsulfuron . Asulox at the highest rate reduced tall fescue growth , but with little effect on seed yield ( Table 3 ) .
Winter growth and seed yield of tall fescue was seriously reduced by low rates of diclofopmethyl and chlorsulfuron . Asulox at the highest rate reduced tall fescue growth , but with little effect on seed yield ( Table 3 ) .
Page 242
Crop Stage Pests Effects seedling black beetle ( adults ) Argentine stem weevil slugs reduce plant establishment cutworm young plant at 2-4 leaf stage 6 leaf stage to cob ripening armyworm reduces plant stand and hence potential yield ...
Crop Stage Pests Effects seedling black beetle ( adults ) Argentine stem weevil slugs reduce plant establishment cutworm young plant at 2-4 leaf stage 6 leaf stage to cob ripening armyworm reduces plant stand and hence potential yield ...
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Contents
Author Index | 9 |
PASTURE PESTS | 15 |
Field testing of seed protectants against black field cricket attack | 22 |
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