Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 28
28 diflubenzuron 10g ai / ha diflubenzuron 100gai / ha teflubenzuron 30gai / ha teflubenzuron 300g a ilha ( a ) ( b ) 100 , SED 1 SED I I III UI II II 8040 20 % of untreated population remaining 101 5 Lucerne flea per 6m sweep ...
28 diflubenzuron 10g ai / ha diflubenzuron 100gai / ha teflubenzuron 30gai / ha teflubenzuron 300g a ilha ( a ) ( b ) 100 , SED 1 SED I I III UI II II 8040 20 % of untreated population remaining 101 5 Lucerne flea per 6m sweep ...
Page 123
Weevil population densities and levels of parasitism From 8.2.85 to 10.4.85 and 13.2.85 to 11.11.85 weevils were randomly collected at weekly intervals from aestivation sites and a lucerne stand respectively .
Weevil population densities and levels of parasitism From 8.2.85 to 10.4.85 and 13.2.85 to 11.11.85 weevils were randomly collected at weekly intervals from aestivation sites and a lucerne stand respectively .
Page 124
100 Darflold : unparasitised woovil population - 1982 - . 100 Tinwald : parasitised woovil population - 1985 90 90 Tinwald : % parasitism - 1986 80 Tinwald : % parasitism - 1986 80 70 70 60 60 number m - 2 % parasitism 50 50 40 40 30 30 ...
100 Darflold : unparasitised woovil population - 1982 - . 100 Tinwald : parasitised woovil population - 1985 90 90 Tinwald : % parasitism - 1986 80 Tinwald : % parasitism - 1986 80 70 70 60 60 number m - 2 % parasitism 50 50 40 40 30 30 ...
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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