Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 42
... Nematodes RESULTS AND DISCUSSION Over all sites , 88 % of total nematodes were found in seed roots and 8 % were associated with the seed , but there were differences in the distribution of nematodes on the seedlings between sites ...
... Nematodes RESULTS AND DISCUSSION Over all sites , 88 % of total nematodes were found in seed roots and 8 % were associated with the seed , but there were differences in the distribution of nematodes on the seedlings between sites ...
Page 43
... nematodes / 20 seedlings 5.9 ( 24 ) 5.5 ( 23 ) 9.5 ( 21 ) LSR 1.54 Nematodes in seed roots / 20 seedlings 5.5 ( 22 ) 5.3 ( 22 ) 8.5 ( 17 ) LSR 1.68 No. nematode infested seedlings / 2 m row 13.2 ( 24 ) 12.7 ( 24 ) 21.3 ( 33 ) SED 4.11 ...
... nematodes / 20 seedlings 5.9 ( 24 ) 5.5 ( 23 ) 9.5 ( 21 ) LSR 1.54 Nematodes in seed roots / 20 seedlings 5.5 ( 22 ) 5.3 ( 22 ) 8.5 ( 17 ) LSR 1.68 No. nematode infested seedlings / 2 m row 13.2 ( 24 ) 12.7 ( 24 ) 21.3 ( 33 ) SED 4.11 ...
Page 44
... nematode counts of the six sites , and no grass grub . There was no assessment of ectoparasitic root feeding nematodes , which have also been implicated in establishment and persistence problems in ryegrass ( Spaull 1985 ; Spaull et al ...
... nematode counts of the six sites , and no grass grub . There was no assessment of ectoparasitic root feeding nematodes , which have also been implicated in establishment and persistence problems in ryegrass ( Spaull 1985 ; Spaull et al ...
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