Proceedings of the New Zealand Weed and Pest Control Conference1981 - Pesticides |
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Page 227
... Spring applications produced an average of 81 % effective stem weevil control while the summer applications gave an average 75 % control . By the mid February sampling however , larvae had increased again to damaging levels in both the ...
... Spring applications produced an average of 81 % effective stem weevil control while the summer applications gave an average 75 % control . By the mid February sampling however , larvae had increased again to damaging levels in both the ...
Page 174
... spring ( Trial 1 ) showed blackened leaf margins in the early stages of growth , but no such damage was noted from winter application ( Trial 2 ) . Injury by metribuzin has also been noted by some other workers but Betts and Morrison ...
... spring ( Trial 1 ) showed blackened leaf margins in the early stages of growth , but no such damage was noted from winter application ( Trial 2 ) . Injury by metribuzin has also been noted by some other workers but Betts and Morrison ...
Page 277
... spring crops respectively . Aphid numbers fell in December , in the presence of heavy entomophthorous fungus ... spring E10 ( 8.0 ) E50 ( 10.0 ) L10 ( 10.5.2 ) Wheat , autumn E10 ( 10.0 ) E10 ( 10.5.2 ) L10 Wheat , spring E10 ( 9.0 ) L10 ...
... spring crops respectively . Aphid numbers fell in December , in the presence of heavy entomophthorous fungus ... spring E10 ( 8.0 ) E50 ( 10.0 ) L10 ( 10.5.2 ) Wheat , autumn E10 ( 10.0 ) E10 ( 10.5.2 ) L10 Wheat , spring E10 ( 9.0 ) L10 ...
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