Proceedings of the New Zealand Weed and Pest Control Conference, Volume 391986 - Pesticides |
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Page 207
... clopyralid had virtually no effects on spears . One to three applications of clopyralid reduced the average cover of Californian thistle from 66 % in the first year to 17 % the next . In small plot trials speed of thistle knockdown ...
... clopyralid had virtually no effects on spears . One to three applications of clopyralid reduced the average cover of Californian thistle from 66 % in the first year to 17 % the next . In small plot trials speed of thistle knockdown ...
Page 209
... clopyralid , 30 had moderate to very severe infestations of Californian thistle which often covered the whole block , smothering the crop . A total of 235 ha was treated and without exception the growers considered being able to use ...
... clopyralid , 30 had moderate to very severe infestations of Californian thistle which often covered the whole block , smothering the crop . A total of 235 ha was treated and without exception the growers considered being able to use ...
Page 265
... clopyralid . Three of these sites were cultivated and three direct drilled . Only three sites were treated with 400 g ai / ha clopyralid and these are included with the 300 g ai / ha rate in Table 1. All were cultivated , one with ...
... clopyralid . Three of these sites were cultivated and three direct drilled . Only three sites were treated with 400 g ai / ha clopyralid and these are included with the 300 g ai / ha rate in Table 1. All were cultivated , one with ...
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