Proceedings of the New Zealand Weed and Pest Control Conference1989 - Pesticides |
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Page 159
... infection periods for black spot ( Venturia inaequalis ) during the primary infection season ( 1 September and 31 December ) . In all regions , monitoring of infection periods could improve disease management through better timing of ...
... infection periods for black spot ( Venturia inaequalis ) during the primary infection season ( 1 September and 31 December ) . In all regions , monitoring of infection periods could improve disease management through better timing of ...
Page 162
... infection periods : Number of infection periods = 0.044 × rainfall ( 1 ) Thirty - year normals for rainfall for each site were used with equation ( 1 ) to determine long term expectations for numbers of infection periods . Table 3 shows ...
... infection periods : Number of infection periods = 0.044 × rainfall ( 1 ) Thirty - year normals for rainfall for each site were used with equation ( 1 ) to determine long term expectations for numbers of infection periods . Table 3 shows ...
Page 169
... infection occurring outside the monitored infection periods , and not controlled by the protectant or eradicant applications . It is likely that infection occurred outside the monitored infection periods because observations of the leaf ...
... infection occurring outside the monitored infection periods , and not controlled by the protectant or eradicant applications . It is likely that infection occurred outside the monitored infection periods because observations of the leaf ...
Contents
Author Index | 9 |
Resource allocations for future weed control activities | 15 |
The role of government research in achieving safe pest management | 32 |
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Common terms and phrases
42nd N.Z. Weed activity adult aphid application armyworm assessed Auckland bees biological control Canterbury carbaryl Centre chemical chlorpyrifos chlorsulfuron Christchurch clethodim clover croceipes crops cyproconazole damage days after spraying densities diazinon diclofop-methyl disease DSIR effect fenitrothion field foliage fruit fly fungicides g ai/ha g/ha Gisborne glyphosate grass grub greedy scale growth Hawkes Bay herbicide increased infection periods insecticides instar kg/ha kiwifruit laboratory larvae latania latania scale leaf levels lime sulphur Lincoln litres lucerne MAFTech mancozeb MCPA Melittobia metiram mites mortality nodding thistle P.O. Box Palmerston North parasitoid pasture Pest Control Conf pesticide pirimicarb plants plots populations powdery mildew predator Private Bag Proc prochloraz programme propiconazole pyri rainfall rates reduced replicates residues resistance Ruakura ryegrass sampling season seed significant significantly soil species surface surfactant Table tested toxicity treatment tree trial triclopyr untreated Weed and Pest weed control weevil yield Zealand