Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 233
... ECONOMIC SIGNIFICANCE Over the past few years there has been an increasing awareness of Septoria leaf spot ( Septoria tritici ) throughout the world and considerable work is now being conducted to determine its economic importance . The ...
... ECONOMIC SIGNIFICANCE Over the past few years there has been an increasing awareness of Septoria leaf spot ( Septoria tritici ) throughout the world and considerable work is now being conducted to determine its economic importance . The ...
Page 17
ECONOMICS OF SCRUBWEED CONTROL B. N. MacDIARMID Ivon Watkins - Dow Limited , New Plymouth Summary Whether aerial ... economic alternative to the more common method of cutting or crushing then burning : 1 . 2 . 3 . The development of ...
ECONOMICS OF SCRUBWEED CONTROL B. N. MacDIARMID Ivon Watkins - Dow Limited , New Plymouth Summary Whether aerial ... economic alternative to the more common method of cutting or crushing then burning : 1 . 2 . 3 . The development of ...
Page 74
... economic loss or harm because of its effect on humans , domestic animals , crops ( agricultural , horticultural or silvicultural ) , pastures , aquatic habitat , or the general environment . " Two categories were proposed to define the ...
... economic loss or harm because of its effect on humans , domestic animals , crops ( agricultural , horticultural or silvicultural ) , pastures , aquatic habitat , or the general environment . " Two categories were proposed to define the ...
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