Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 98
An important factor to be considered where a herbicide is to be broadcast over scrub infested areas is the tolerance of non - target species . In this work limited observations suggested that the grass species associated with a sweet ...
An important factor to be considered where a herbicide is to be broadcast over scrub infested areas is the tolerance of non - target species . In this work limited observations suggested that the grass species associated with a sweet ...
Page 102
102 TOLERANCE OF TREE SPECIES TO HALOXYFOP AND CLOPYRALID APPLIED IN EARLY SUMMER B.J. COSSLETT Forest Research Institute , Christchurch Eucalypts and cypresses are sensitive to many of the herbicides commonly used in forestry ...
102 TOLERANCE OF TREE SPECIES TO HALOXYFOP AND CLOPYRALID APPLIED IN EARLY SUMMER B.J. COSSLETT Forest Research Institute , Christchurch Eucalypts and cypresses are sensitive to many of the herbicides commonly used in forestry ...
Page 185
The correlation coefficient will be close to 1.0 where the relative importance of the species between seasons or sites is similar . RESULTS Some species were considerably more widespread within the maps , than were others ( Table 1a ) .
The correlation coefficient will be close to 1.0 where the relative importance of the species between seasons or sites is similar . RESULTS Some species were considerably more widespread within the maps , than were others ( Table 1a ) .
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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