Proceedings of the New Zealand Weed and Pest Control Conference1981 - Pesticides |
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Page 119
... stem weevil attack . INTRODUCTION Argentine stem weevil is an important pest of Gramineae in New Zealand . The larvae enter and mine the interior of the stem , eventually destroying the crown and killing the tiller . There are generally ...
... stem weevil attack . INTRODUCTION Argentine stem weevil is an important pest of Gramineae in New Zealand . The larvae enter and mine the interior of the stem , eventually destroying the crown and killing the tiller . There are generally ...
Page 142
... stems were cut off at ground level 18 months after application of the herbicide and cut into 20 cm lengths to determine the amount of stem kill noting presence or absence of green tissue . Root crowns of all stems were also examined to ...
... stems were cut off at ground level 18 months after application of the herbicide and cut into 20 cm lengths to determine the amount of stem kill noting presence or absence of green tissue . Root crowns of all stems were also examined to ...
Page 228
... stem weevil would not be expected . Further evidence from the Volcanic Plateau would support that ryegrass production losses due to the spring generation of Argentine stem weevil are negligible ( Prestidge unpublished data ) . A single ...
... stem weevil would not be expected . Further evidence from the Volcanic Plateau would support that ryegrass production losses due to the spring generation of Argentine stem weevil are negligible ( Prestidge unpublished data ) . A single ...
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