Proceedings of the New Zealand Weed and Pest Control Conference1981 - Pesticides |
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Page 308
... reduced spray programme on marketable yield of Brussels sprouts ( Brassica oleracea var gemmifera ) was tested . The major pests , diamondback moth ( Plutella xylostella ) , white butterfly ( Artogeia rapae ) and cabbage aphid ...
... reduced spray programme on marketable yield of Brussels sprouts ( Brassica oleracea var gemmifera ) was tested . The major pests , diamondback moth ( Plutella xylostella ) , white butterfly ( Artogeia rapae ) and cabbage aphid ...
Page 309
... reduced to three / plot . Six plants from each plot were harvested in mid June . All the sprouts were stripped from the stem and gross weights recorded . The sprouts from three of the plants were counted , weighed and examined ; those ...
... reduced to three / plot . Six plants from each plot were harvested in mid June . All the sprouts were stripped from the stem and gross weights recorded . The sprouts from three of the plants were counted , weighed and examined ; those ...
Page 311
... reduced spray programme allows growers to cut insecticide and application costs from $ 507 / ha for the full spray schedule to $ 244 / ha for the reduced programme . Diamondback moth was the major pest causing rejection of over 11 % of ...
... reduced spray programme allows growers to cut insecticide and application costs from $ 507 / ha for the full spray schedule to $ 244 / ha for the reduced programme . Diamondback moth was the major pest causing rejection of over 11 % of ...
Contents
A relationship between seed yield of white clover and density of yarrow G | 5 |
Fungicide seed treatment to improve establishment of ryegrasses and other | |
Weed control in lentils J H B Butler and W A Jermyn | 3 |
Copyright | |
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35th N.Z. Weed adult Agric aphid application Argentine stem weevil asparagus assessed atrazine Auckland bait barley beetle Canterbury chemical chlorpyrifos Christchurch crop cultivars damage density diazinon diquat disease diuron DSIR effect endophyte EPTC ester fensulfothion field trials foliar formulation fungicide g/ha gave germination glyphosate gorse grass grub grazing growth Hamilton harvest herbicides hexazinone infection insecticide kg ai/ha kg/ha kiwifruit larvae leaf levels lindane linuron litres/ha loam lucerne MCPA METHODS nematodes nodding thistle numbers oxamyl P.O. Box paddocks Palmerston North paraquat pasture permethrin Pest Control Conf picloram plants plots populations porina post-emergence Proc prochloraz production programme pyrethroids ragwort reduced regrowth replicates residues Ruakura ryegrass samples season seed treatment seedlings significant significantly simazine slug soil sown species spray stage stripe rust Table tamarillo tested triadimefon triclopyr untreated Weed and Pest weed control weeks wheat white clover yield Zealand