Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 135
... Summer grasses ' ( panicoid spp ) including : barnyard grass , summer grass , and smooth witchgrass ( see Table 1 ) are now widespread in New Zealand maize ( Zea mays ) crops . These species are not well controlled by atrazine ...
... Summer grasses ' ( panicoid spp ) including : barnyard grass , summer grass , and smooth witchgrass ( see Table 1 ) are now widespread in New Zealand maize ( Zea mays ) crops . These species are not well controlled by atrazine ...
Page 137
RESULTS Effect on ' Summer grasses ' Table 1 shows the effect of mixtures of metolachlor on ' summer grasses ' from five trials in the Waikato and two in the Gisborne region . Summer grass was the dominant grass weed species in the ...
RESULTS Effect on ' Summer grasses ' Table 1 shows the effect of mixtures of metolachlor on ' summer grasses ' from five trials in the Waikato and two in the Gisborne region . Summer grass was the dominant grass weed species in the ...
Page 46
... summer sudax crop ( Sorghum bicolor x S. sudanense ) reduced a white - fringed weevil population by 94 % , compared to a 98 % reduction by a January to April fallow . Thorough cultivation prior to establishing a weed- and legume - free ...
... summer sudax crop ( Sorghum bicolor x S. sudanense ) reduced a white - fringed weevil population by 94 % , compared to a 98 % reduction by a January to April fallow . Thorough cultivation prior to establishing a weed- and legume - free ...
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