Proceedings of the New Zealand Weed and Pest Control Conference1981 - Pesticides |
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... damage . In the author's experience , damage from ' turnip fly ' ( identified as grass grub , Costelytra zealandica by Miller ( 1924 ) ) is common only in those areas where grass grubs are a serious pest of pasture . Their damage is ...
... damage . In the author's experience , damage from ' turnip fly ' ( identified as grass grub , Costelytra zealandica by Miller ( 1924 ) ) is common only in those areas where grass grubs are a serious pest of pasture . Their damage is ...
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... damage has decreased each year with the 1980 plantings being little affected by insects . Conventional tillage has consistently had a low percentage of insect damage . The no cultivation paraquat treatment had gradually less damage each ...
... damage has decreased each year with the 1980 plantings being little affected by insects . Conventional tillage has consistently had a low percentage of insect damage . The no cultivation paraquat treatment had gradually less damage each ...
Page 248
... damage , with crops sown in October and early November at greatest risk . Control ( < 10 % damage ) was obtained from a cultivation period prior to sowing ( 15 days or more for mid - November to mid - December sowings ) . INTRODUCTION ...
... damage , with crops sown in October and early November at greatest risk . Control ( < 10 % damage ) was obtained from a cultivation period prior to sowing ( 15 days or more for mid - November to mid - December sowings ) . INTRODUCTION ...
Contents
A relationship between seed yield of white clover and density of yarrow G | 5 |
Fungicide seed treatment to improve establishment of ryegrasses and other | |
Weed control in lentils J H B Butler and W A Jermyn | 3 |
Copyright | |
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35th N.Z. Weed adult Agric aphid application Argentine stem weevil asparagus assessed atrazine Auckland bait barley beetle Canterbury chemical chlorpyrifos Christchurch crop cultivars damage density diazinon diquat disease diuron DSIR effect endophyte EPTC ester fensulfothion field trials foliar formulation fungicide g/ha gave germination glyphosate gorse grass grub grazing growth Hamilton harvest herbicides hexazinone infection insecticide kg ai/ha kg/ha kiwifruit larvae leaf levels lindane linuron litres/ha loam lucerne MCPA METHODS nematodes nodding thistle numbers oxamyl P.O. Box paddocks Palmerston North paraquat pasture permethrin Pest Control Conf picloram plants plots populations porina post-emergence Proc prochloraz production programme pyrethroids ragwort reduced regrowth replicates residues Ruakura ryegrass samples season seed treatment seedlings significant significantly simazine slug soil sown species spray stage stripe rust Table tamarillo tested triadimefon triclopyr untreated Weed and Pest weed control weeks wheat white clover yield Zealand