Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 225
... INTRODUCTION During recent years changes in crop rotations and the introduction of new barley ( Hordeum vulgare ) varieties appear to have increased the severity of brown rust ( Puccinia hordei ) . The disease is easily recognised by ...
... INTRODUCTION During recent years changes in crop rotations and the introduction of new barley ( Hordeum vulgare ) varieties appear to have increased the severity of brown rust ( Puccinia hordei ) . The disease is easily recognised by ...
Page 142
... introduction . The studies on presently infected lakes have confirmed that most introductory points for exotic plants correspond with boat access sites . Even though the development of exotics may be greater in less exposed and more ...
... introduction . The studies on presently infected lakes have confirmed that most introductory points for exotic plants correspond with boat access sites . Even though the development of exotics may be greater in less exposed and more ...
Page 188
... introduction to the chemical is given , including chemical and physical properties , toxicology , spectrum of activity , compatibility with other pesticides , and crop safety . Reference to trial work in New Zealand assessing efficacy ...
... introduction to the chemical is given , including chemical and physical properties , toxicology , spectrum of activity , compatibility with other pesticides , and crop safety . Reference to trial work in New Zealand assessing efficacy ...
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