Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 43
... determined by hand - threshing the seed . Plants were assessed for disease on the foliage , by determining mean disease index , mean leaf / stem ratios and percentage defoliation for each plot . Herbage yields RESULTS Yields from plots ...
... determined by hand - threshing the seed . Plants were assessed for disease on the foliage , by determining mean disease index , mean leaf / stem ratios and percentage defoliation for each plot . Herbage yields RESULTS Yields from plots ...
Page 185
... determined . Mass rearing programmes for ladybirds are hampered if they are reliant on an ephermeral population of aphids from the field . Two artificial dry diets formulated by Smith ( 1965 ) have been found satisfactory for ...
... determined . Mass rearing programmes for ladybirds are hampered if they are reliant on an ephermeral population of aphids from the field . Two artificial dry diets formulated by Smith ( 1965 ) have been found satisfactory for ...
Page 203
... determine the period after which it would be ' safe ' to establish susceptible species such as clovers in soils treated ... determined by Walkley - Black method , and the rainfall during the experimental period at different locations are ...
... determine the period after which it would be ' safe ' to establish susceptible species such as clovers in soils treated ... determined by Walkley - Black method , and the rainfall during the experimental period at different locations are ...
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