Proceedings of the New Zealand Weed and Pest Control Conference1989 - Pesticides |
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Page 49
... adult moths observed was recorded . The same method was used for sampling larvae . L. jacobaeae adults were sampled ... adult was noted on 16 December 1987. Larvae were found during December and January 1986-7 and January and February ...
... adult moths observed was recorded . The same method was used for sampling larvae . L. jacobaeae adults were sampled ... adult was noted on 16 December 1987. Larvae were found during December and January 1986-7 and January and February ...
Page 76
... adult weevil can cause widespread defoliation in lucerne stands particularly in the late spring when teneral adults emerge . However , in Canterbury's light soils , larvae cause the most significant yield losses ( Goldson et al 1988 ) ...
... adult weevil can cause widespread defoliation in lucerne stands particularly in the late spring when teneral adults emerge . However , in Canterbury's light soils , larvae cause the most significant yield losses ( Goldson et al 1988 ) ...
Page 238
... adult weevils in asparagus . LIFE HISTORY AND BIOLOGY The adult garden weevil is about 7 mm long , greyish brown , and distinguished by a white V - shaped stripe near the apex of the elytra . They emerge from the soil in late October ...
... adult weevils in asparagus . LIFE HISTORY AND BIOLOGY The adult garden weevil is about 7 mm long , greyish brown , and distinguished by a white V - shaped stripe near the apex of the elytra . They emerge from the soil in late October ...
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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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