Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 120
... method of analysis is described and the sensitivity of the two methods compared . Soil sampling METHODS Twenty - four fields of maize ( Gisborne 5 , Hawkes Bay 14 , and Tara- naki 5 ) , 17 of which had received at least 1.8 kg per ...
... method of analysis is described and the sensitivity of the two methods compared . Soil sampling METHODS Twenty - four fields of maize ( Gisborne 5 , Hawkes Bay 14 , and Tara- naki 5 ) , 17 of which had received at least 1.8 kg per ...
Page 121
... methods as sometimes giving misleading results if their extraction techniques remove residues which are normally too firmly adsorbed on soil to affect plants . For this reason the bioassay method was used to assay atrazine residues in ...
... methods as sometimes giving misleading results if their extraction techniques remove residues which are normally too firmly adsorbed on soil to affect plants . For this reason the bioassay method was used to assay atrazine residues in ...
Page 160
... method and in subsequent work ( Fenemore and Perrott 1970 ) numerous insecticides were investigated for this purpose . In these trials , however , none of the insecticides available at that time , even at very high rates , gave control ...
... method and in subsequent work ( Fenemore and Perrott 1970 ) numerous insecticides were investigated for this purpose . In these trials , however , none of the insecticides available at that time , even at very high rates , gave control ...
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