Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
From inside the book
Results 1-3 of 82
Page 95
... major have been further substantiated , and although M. P. Rolston ( pers comm ) found pre - emergence ethofumesate treatments reduced early lotus major growth in the short term , such an effect was not evident following the long period ...
... major have been further substantiated , and although M. P. Rolston ( pers comm ) found pre - emergence ethofumesate treatments reduced early lotus major growth in the short term , such an effect was not evident following the long period ...
Page 158
A NEW TOXIN FOR GRASS GRUB AND BLACK BEETLE IN RESISTANT LOTUS MAJOR O. R. W. SUTHERLAND and W. J. GREENFIELD Entomology Division , DSIR , Auckland Summary Crude aqueous extracts of lotus major ( Lotus pedunculatus ) are highly toxic to ...
A NEW TOXIN FOR GRASS GRUB AND BLACK BEETLE IN RESISTANT LOTUS MAJOR O. R. W. SUTHERLAND and W. J. GREENFIELD Entomology Division , DSIR , Auckland Summary Crude aqueous extracts of lotus major ( Lotus pedunculatus ) are highly toxic to ...
Page 159
... major lotus corniculatus 36 77 92 100 100 0 0 0 15 7 83 lotus hybrid 0 0 0 0 The effect of the crude extracts on black beetle larvae paralleled those on grass grubs ( Table 2 ) . Again lotus major was very toxic ( ED50 0.307 g ) ; lotus ...
... major lotus corniculatus 36 77 92 100 100 0 0 0 15 7 83 lotus hybrid 0 0 0 0 The effect of the crude extracts on black beetle larvae paralleled those on grass grubs ( Table 2 ) . Again lotus major was very toxic ( ED50 0.307 g ) ; lotus ...
Contents
Chairmans summary | 1 |
Notillage establishment of lucerne G C Atkinson | 9 |
Insects affecting lucerne seed production | 19 |
Copyright | |
27 other sections not shown
Other editions - View all
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