Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 39
... yield assessment has been described elsewhere ( Goldson et al 1985 ) . In order to differentiate between the ' acute ' effects of spring denodulation by S. discoideus larvae and any long - term ' carry - over ' effects , only yield data ...
... yield assessment has been described elsewhere ( Goldson et al 1985 ) . In order to differentiate between the ' acute ' effects of spring denodulation by S. discoideus larvae and any long - term ' carry - over ' effects , only yield data ...
Page 48
... Yields : In the browntop and phalaris trials weed control by herbicides increased seed yield by up to 97 and 136 % respectively . The benefits from weed control in these two trials were associated with an initial high percentage of ...
... Yields : In the browntop and phalaris trials weed control by herbicides increased seed yield by up to 97 and 136 % respectively . The benefits from weed control in these two trials were associated with an initial high percentage of ...
Page 242
... yield reduces yield indirectly through loss of foliage reduces yield directly by feeding on the cobs be made as it proceeds . Decisions required by the player include selection of such factors as previous cropping history and method of ...
... yield reduces yield indirectly through loss of foliage reduces yield directly by feeding on the cobs be made as it proceeds . Decisions required by the player include selection of such factors as previous cropping history and method of ...
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