Proceedings of the New Zealand Weed and Pest Control Conference1990 - Pesticides |
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Page 22
... leaf stage . Sampling continued for 8 weeks at MARC and for 6 weeks at Pukekohe . Samples consisted of four randomly chosen plants from each variety at each ... leaf surfaces to the terminal / inner leaf area Vegetables and Ornamentals 22.
... leaf stage . Sampling continued for 8 weeks at MARC and for 6 weeks at Pukekohe . Samples consisted of four randomly chosen plants from each variety at each ... leaf surfaces to the terminal / inner leaf area Vegetables and Ornamentals 22.
Page 156
... leaf 1 and was severe on leaf 2 of all cultivars . Resistance developed progressively from the emergence of leaf 3 to leaf 6 , with time of onset varying between cultivars . Only the mean figures for the two groups of cultivars ...
... leaf 1 and was severe on leaf 2 of all cultivars . Resistance developed progressively from the emergence of leaf 3 to leaf 6 , with time of onset varying between cultivars . Only the mean figures for the two groups of cultivars ...
Page 157
... leaves did not always become infected . The area under the disease progress curve ( AUDPC ) was calculated for the epidemic on each leaf number of each cultivar for each of the trials : mean AUDPCs for each leaf number of each cultivar ...
... leaves did not always become infected . The area under the disease progress curve ( AUDPC ) was calculated for the epidemic on each leaf number of each cultivar for each of the trials : mean AUDPCs for each leaf number of each cultivar ...
Contents
Author Index | 10 |
Research Scholarship | 16 |
Developing an action threshold for lepidopterous pests of cabbage | 26 |
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43rd N.Z. Weed adult aphid apple application asparagus assessed Auckland bioassay block Canterbury catches chemical chlorpyrifos chlorsulfuron Christchurch crops cultivars damage density diazinon dicarboximide disease DSIR DSIR Plant Protection effect endophyte field fungicide genes giant buttercup glyphosate gorse gorse seedlings grass growers growth harvest herbicides infestation insecticide insects instar kg/ha kiwifruit larvae LBAM leaf leafroller levels Lincoln litres MAF Technology MCPA MCPB methidathion method metsulfuron mortality moth nematodes nodding thistle North Island orchard P.O. Box Palmerston North parasitoid pasture permethrin Pest Control Conf pesticides pheromone pheromone traps plots Popay populations pots predation Proc prochloraz programme pyri rates reduced replicates Research residual Rhinocyllus Ruakura ryegrass samples season seed significantly Silwet L77 simazine soil solarisation species spider mite spray Table tall fescue temperatures tested thrips toxicity treatment trees trials triclopyr untreated wasp Weed and Pest weed control white clover yield loss Zealand