Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 31
... showed the greatest resistance to root knot nematode . INTRODUCTION The detrimental influence various pathogens may have on lucerne ( Medicago sativa ) is becoming more widely appreciated as the area of lucerne is increased . These ...
... showed the greatest resistance to root knot nematode . INTRODUCTION The detrimental influence various pathogens may have on lucerne ( Medicago sativa ) is becoming more widely appreciated as the area of lucerne is increased . These ...
Page 194
... showed a significant response to insecticide measured over all ryegrass species . A significant ( P < .05 ) decline in tiller density to June was found in the untreated ' Nui ' plots relative to the treated plots . Herbage production ...
... showed a significant response to insecticide measured over all ryegrass species . A significant ( P < .05 ) decline in tiller density to June was found in the untreated ' Nui ' plots relative to the treated plots . Herbage production ...
Page 225
... showed that the maximum effect of phorate on earthworm populations is most likely to occur 8-16 weeks after application , the counts taken over this period from the summer - sown brassica crops in Table 2 showed no significant reduc ...
... showed that the maximum effect of phorate on earthworm populations is most likely to occur 8-16 weeks after application , the counts taken over this period from the summer - sown brassica crops in Table 2 showed no significant reduc ...
Contents
Chairmans summary | 1 |
Notillage establishment of lucerne G C Atkinson | 9 |
Insects affecting lucerne seed production | 19 |
Copyright | |
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Common terms and phrases
29th N.Z. Weed activity adults Agric Agricultural Research Centre alachlor aphid application areas assessed asulam atrazine Auckland autumn azinphos-methyl barley grass benomyl BGLA black beetle blue-green lucerne aphid brassicas Canterbury carbofuran chemical chlorpyrifos Christchurch crop cultivars cypermethrin damage diflubenzuron disease DSIR effect emergence ethofumesate fensulfothion field trials foliage fungicides germination gorse granules grass grub growth Hamilton harvest herbicides increased insect insecticides isazophos kg/ha larvae leaf legumes Lincoln linuron litres/ha lucerne lucerne yield maize method mite nematode North Island numbers oats P.O. Box Palmerston North paraquat pasture Pest Control Conf phorate picloram plants plots population post-emergence Proc pyri rates reduced replicates residual resistant Ruakura Ruakura Agricultural Research ryegrass samples season seed seedlings significant significantly soil sowing sown species spray sprayer spring stage summer Table tested treatments triclopyr untreated Weed and Pest weed control weeks weevil Wellington white clover white-fringed weevil Zealand