Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 209
209 Thistles were most susceptible during the bolting stage when they were growing most actively , followed by the rosette stage . The early flowering stage took the longest time to die down but as this usually occurred at the end of ...
209 Thistles were most susceptible during the bolting stage when they were growing most actively , followed by the rosette stage . The early flowering stage took the longest time to die down but as this usually occurred at the end of ...
Page 242
... stage 6 leaf stage to cob ripening silking to early cob ripening Pests black beetle ( adults ) Argentine stem weevil slugs cutworm armyworm corn earworm Effects reduce plant establishment reduces plant stand and hence potential yield ...
... stage 6 leaf stage to cob ripening silking to early cob ripening Pests black beetle ( adults ) Argentine stem weevil slugs cutworm armyworm corn earworm Effects reduce plant establishment reduces plant stand and hence potential yield ...
Page 253
... stage of plant growth but numbers recovered during the flowering to milky - ripe stages . This recovery was less in barley sprayed at the flag leaf sheath extension stage , and the overall aphid burden was reduced to 19-46 % of that ...
... stage of plant growth but numbers recovered during the flowering to milky - ripe stages . This recovery was less in barley sprayed at the flag leaf sheath extension stage , and the overall aphid burden was reduced to 19-46 % of that ...
Contents
Author Index | 9 |
PASTURE PESTS | 15 |
Field testing of seed protectants against black field cricket attack | 22 |
Copyright | |
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39th N.Z. Weed adult alachlor aphid application asparagus assessed atrazine beetle benomyl biological control buprofezin BYDV Californian thistle captafol chemicals chlorpyrifos clopyralid cover crawlers crop damage density diazinon discoideus disease DSIR effect eggs fensulfothion field foliage formulation fruit fungicides glyphosate gorse grass grub greedy scale growers growth haloxyfop EE harvest herbicides hexazinone increased infested insect insecticide insensitive instar kg ai/ha kiwifruit larvae leaf litres litres/ha lucerne metalaxyl metsulfuron mg ai/litre miticides mortality nematodes numbers orchard P.O. Box Palmerston North paraquat parasite pasture pathogens persimilis Pest Control Conf pesticides plants plots population porina Proc prochloraz ragwort rates reduced regrowth replicates Research residues root Ruakura ryegrass samples season seed treatments seedlings significant significantly Silwet Sitona soil spears species spray sprayer surfactant Table tamarillo tested trees trials trifluralin untreated control vinclozolin vines Weed and Pest weed control weeks whitefly yield Zealand