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ACKNOWLEDGEMENTS activity adult Agricultural aphid appeared application asparagus assessed Auckland beetle block caused chemical clover compared crop cultivars damage DISCUSSION disease early effect emergence EPTC establishment experiments field field cricket flowering formulation four fungicide gave glyphosate gorse grass grub grazing growth harvest herbicides increased indicated infection insecticide INTRODUCTION kg/ha larvae late leaf less levels lindane lucerne March Mean methods months N.Z. Weed North numbers observed occurred P.O. Box pasture period Pest Control Conf plants plots populations present Private Proc production programme range rates recorded reduced REFERENCES replicates reported Research residues rows rust ryegrass samples season seed seedlings severe showed shown significant significantly similar soil sown species spray spring stage stem studies SUMMARY Table tested thistle tolerance treated treatments trial untreated Weed and Pest weed control weeks weight yield Zealand