Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 65
Six commercially available and five experimental chemicals were evaluated for 6 months in a randomised block design small plot trial . Plots at Hauorongo Research Area , near Palmerston North , were sprayed in late October 1983 on short ...
Six commercially available and five experimental chemicals were evaluated for 6 months in a randomised block design small plot trial . Plots at Hauorongo Research Area , near Palmerston North , were sprayed in late October 1983 on short ...
Page 79
Spray formulation Rate kg ai / ha % foliage brown - off At 12 months At 19 months metsulfuron without surfactant 0.3 0.4 0.5 60 C 70 bc 89.4ab 96.3a 99.0a 99.5a 4.3 c 8.9 c 19.8bc 54.2ab 73.3a 81.5a metsulfuron with 0.1 % v ...
Spray formulation Rate kg ai / ha % foliage brown - off At 12 months At 19 months metsulfuron without surfactant 0.3 0.4 0.5 60 C 70 bc 89.4ab 96.3a 99.0a 99.5a 4.3 c 8.9 c 19.8bc 54.2ab 73.3a 81.5a metsulfuron with 0.1 % v ...
Page 96
Sixteen months after application herbs were re - establishing at all sites . Of the asse ated scrub species , matagouri ( Discaria toumatou ) was killed , but Coprosma spp . and Pittosporum spp . survived . TABLE 2 : Mean percent dead ...
Sixteen months after application herbs were re - establishing at all sites . Of the asse ated scrub species , matagouri ( Discaria toumatou ) was killed , but Coprosma spp . and Pittosporum spp . survived . TABLE 2 : Mean percent dead ...
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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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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