Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 65
... spraying ) . Treatments were assessed for their effects on pasture dry matter ( DM ) production , pasture composition , grass tiller density and seed head development . Pasture DM production was significantly depressed for the 4 weeks ...
... spraying ) . Treatments were assessed for their effects on pasture dry matter ( DM ) production , pasture composition , grass tiller density and seed head development . Pasture DM production was significantly depressed for the 4 weeks ...
Page 102
... spraying . However , 109 mm rain fell in the 38 days between spraying and assessment . This application of the herbicides did not adversely affect any of the tree species . To further test tree tolerance , the two herbicides were ...
... spraying . However , 109 mm rain fell in the 38 days between spraying and assessment . This application of the herbicides did not adversely affect any of the tree species . To further test tree tolerance , the two herbicides were ...
Page 254
... sprayed plots before spraying , and after the period of effective insecticide cover on the foliage . Immediately after spraying numbers fell below 1 / tiller . Tables 1 and 2 show data on plant growth stage and aphid population density ...
... sprayed plots before spraying , and after the period of effective insecticide cover on the foliage . Immediately after spraying numbers fell below 1 / tiller . Tables 1 and 2 show data on plant growth stage and aphid population density ...
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