Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 27
... INTRODUCTION Lucerne flea ( Sminthurus viridis L. ) is one of the few Collembola which is recognised as a pest species . In the North Island of New Zealand it has caused severe damage to white clover ( Trifolium repens ) in dairy ...
... INTRODUCTION Lucerne flea ( Sminthurus viridis L. ) is one of the few Collembola which is recognised as a pest species . In the North Island of New Zealand it has caused severe damage to white clover ( Trifolium repens ) in dairy ...
Page 71
... introduction of biological agents to control gorse would be economically efficient . TABLE 1 : Direct measurable annual costs and benefits from the introduction of biological control agents against gorse ( $ 000's ) ( From Sandrey 1985 ) ...
... introduction of biological agents to control gorse would be economically efficient . TABLE 1 : Direct measurable annual costs and benefits from the introduction of biological control agents against gorse ( $ 000's ) ( From Sandrey 1985 ) ...
Page 219
... INTRODUCTION Snap beans ( Phaseolus vulgaris ) are grown for processing on over 200 ha annually in Hawkes Bay and some 1000 ha nationally . The most common weeds encountered are black nightshade ( Solanum nigrum ) , hairy nightshade ...
... INTRODUCTION Snap beans ( Phaseolus vulgaris ) are grown for processing on over 200 ha annually in Hawkes Bay and some 1000 ha nationally . The most common weeds encountered are black nightshade ( Solanum nigrum ) , hairy nightshade ...
Contents
Author Index | 9 |
PASTURE PESTS | 15 |
Field testing of seed protectants against black field cricket attack | 22 |
Copyright | |
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39th N.Z. Weed adult alachlor aphid application asparagus assessed atrazine beetle benomyl biological control buprofezin BYDV Californian thistle captafol chemicals chlorpyrifos clopyralid cover crawlers crop damage density diazinon discoideus disease DSIR effect eggs fensulfothion field foliage formulation fruit fungicides glyphosate gorse grass grub greedy scale growers growth haloxyfop EE harvest herbicides hexazinone increased infested insect insecticide insensitive instar kg ai/ha kiwifruit larvae leaf litres litres/ha lucerne metalaxyl metsulfuron mg ai/litre miticides mortality nematodes numbers orchard P.O. Box Palmerston North paraquat parasite pasture pathogens persimilis Pest Control Conf pesticides plants plots population porina Proc prochloraz ragwort rates reduced regrowth replicates Research residues root Ruakura ryegrass samples season seed treatments seedlings significant significantly Silwet Sitona soil spears species spray sprayer surfactant Table tamarillo tested trees trials trifluralin untreated control vinclozolin vines Weed and Pest weed control weeks whitefly yield Zealand