Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 159
... Mortality due to handling ranged from 2-5 % and was reduced as we became more skilled at the dosing technique . Larvae which died from needle damage turned black and were thus easily distinguished from those which died from toxins ...
... Mortality due to handling ranged from 2-5 % and was reduced as we became more skilled at the dosing technique . Larvae which died from needle damage turned black and were thus easily distinguished from those which died from toxins ...
Page 200
... mortality with a corresponding re- duction in plant damage . Although over 40 % of the plants showed signs of feeding in some treatments , the damage was almost invariably confined to the outer leaf sheath . In contrast , the untreated ...
... mortality with a corresponding re- duction in plant damage . Although over 40 % of the plants showed signs of feeding in some treatments , the damage was almost invariably confined to the outer leaf sheath . In contrast , the untreated ...
Page 201
... mortality time ( hours ) Granule pad Vapour pressure mm Hg ( temp . ° C ) 14 ° C 25 ° C moist 8.4 X 10 ( 20 ) 9 4 ... MORTALITY IN FIVE SCREENS ( EACH POINT MEAN 2-3 REPS ) . 40 X r = -0.77 ** n = 33 X O UNTREATED X PHORATE TERBUFOS ...
... mortality time ( hours ) Granule pad Vapour pressure mm Hg ( temp . ° C ) 14 ° C 25 ° C moist 8.4 X 10 ( 20 ) 9 4 ... MORTALITY IN FIVE SCREENS ( EACH POINT MEAN 2-3 REPS ) . 40 X r = -0.77 ** n = 33 X O UNTREATED X PHORATE TERBUFOS ...
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