Proceedings of the New Zealand Weed and Pest Control Conference1976 - Pesticides |
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Page 208
... assessed . Prevalence was based on the number of crops found to be infected . Incidence was assessed by taking four samples of 25 plants at random along a diagonal of the paddock up to ear emergence ( Feekes growth stage 10 ) . Disease ...
... assessed . Prevalence was based on the number of crops found to be infected . Incidence was assessed by taking four samples of 25 plants at random along a diagonal of the paddock up to ear emergence ( Feekes growth stage 10 ) . Disease ...
Page 40
... Assessed 31 Oct. MCPA 0.5 kg / ha 6.5 92 6.2 МСРВ 1 kg / ha 3.0 61 5.7 2,4 - D amine 0.75 kg / ha 6.0 87 3.2 2,4 - D ester 0.75 kg / ha 4.7 84 2.3 2,4 - DB 1 kg / ha 2.7 59 4.0 Untreated 0.7 8.0 LSD 1.7 0.8 Sprayed 3 Oct. Assessed 25 ...
... Assessed 31 Oct. MCPA 0.5 kg / ha 6.5 92 6.2 МСРВ 1 kg / ha 3.0 61 5.7 2,4 - D amine 0.75 kg / ha 6.0 87 3.2 2,4 - D ester 0.75 kg / ha 4.7 84 2.3 2,4 - DB 1 kg / ha 2.7 59 4.0 Untreated 0.7 8.0 LSD 1.7 0.8 Sprayed 3 Oct. Assessed 25 ...
Page 47
... assessed by taking 20,5.0 cm diameter , soil cores per plot and extracting the weevils by a flotation and wet sieving process . The effects of spring cultivations were assessed on 10 Novem- ber ( after three cultivations in treatment 2 ) ...
... assessed by taking 20,5.0 cm diameter , soil cores per plot and extracting the weevils by a flotation and wet sieving process . The effects of spring cultivations were assessed on 10 Novem- ber ( after three cultivations in treatment 2 ) ...
Contents
Chairmans summary | 1 |
Notillage establishment of lucerne G C Atkinson | 9 |
Insects affecting lucerne seed production | 19 |
Copyright | |
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Common terms and phrases
29th N.Z. Weed activity adults Agric Agricultural Research Centre alachlor aphid application areas assessed asulam atrazine Auckland autumn azinphos-methyl barley grass benomyl BGLA black beetle blue-green lucerne aphid brassicas Canterbury carbofuran chemical chlorpyrifos Christchurch crop cultivars cypermethrin damage diflubenzuron disease DSIR effect emergence ethofumesate fensulfothion field trials foliage fungicides germination gorse granules grass grub growth Hamilton harvest herbicides increased insect insecticides isazophos kg/ha larvae leaf legumes Lincoln linuron litres/ha lucerne lucerne yield maize method mite nematode North Island numbers oats P.O. Box Palmerston North paraquat pasture Pest Control Conf phorate picloram plants plots population post-emergence Proc pyri rates reduced replicates residual resistant Ruakura Ruakura Agricultural Research ryegrass samples season seed seedlings significant significantly soil sowing sown species spray sprayer spring stage summer Table tested treatments triclopyr untreated Weed and Pest weed control weeks weevil Wellington white clover white-fringed weevil Zealand