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• W2024574743 abstract "Study to evaluate the insecticidal efficacy of pyrethrum, Chrysanthemum cinerariifolium, relative to asynthetic insecticide (Cypermethrin 10 E. C) in the control of some field pests of groundnut wascarried out at the Teaching and Research Farm, School of Agriculture and Agricultural Technology,Federal University of Technology, Owerri, southeastern Nigeria, from March to November, 2012.The experiment was laid out in a 2 x 4 factorial arrangement fitted into a Randomized CompleteBlock Design replicated three times. Groundnut seed variety, ICGV-IS 96894 (ICRISAT) wassubjected to germination test to ensure viability. Seeds were planted at a spacing of 30 cm x 15 cm(220,000 plants/ha) on 24 (1 m2) beds with 1 m between furrows. Pyrethrum was extracted througha simple replicable procedure and tested at four rates (0.00, 0.25, 0.50, 0.75 g/100 ml of water).Cypermethrin 10 EC was tested at 0.00, 0.50, 1.00 and1.50 ml/100 ml of water. Insecticidesapplication, pest sampling and leaf damage assessments were carried out at 4, 6 and 8 weeks afterplanting (WAP). Yield measurement parameters (seed weight, shell weights and pod density) wereassessed. Major arthropod pests identified were; Macrotermes bellicosus Smeathman,Peridontopyge spp., Helotrichia serrata Fabricius, and Oedaleus nigeriensis Uvarov. Cypermethrinand pyrethrum applications reduced pest incidence (3.25, 2.50, 2.10 insects) and (4.09, 3.62, 3.42insects), respectively, when compared with unsprayed plots (6.35, 6.16, 6.20 insects) at 4, 6 and 8WAP. Insecticide type had no significant effect on the population of majority of sampled pests.Sprayed plots had less damaged leaves - 2.80 (cypermethrin) and 2.83 (pyrethrum) as against 4.52leaves in unsprayed plots at 8 WAP. Sprayed plots also had increased fresh pod weight (0.61, 0.52kg in cypermethrin and pyrethrum sprayed plots, respectively) as against 0.14 kg in unsprayed plots.Seed weights (0.26, 0.22 kg in cypermethrin and pymethrum sprayed plots, respectively) weresignificantly distinct from the control (0.06 kg).There were no significant differences (P = .05) in thedry pod or shell weights based on insecticide types. The efficacy of the insecticides was doserelated as higher rates gave better performances. Pyrethrum compared favourably withcypermethrin in controlling the field insect pests of groundnut and could serve as alternative tosynthetic pesticides in the management of these pests in southeastern Nigeria" @default.
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• W2024574743 date "2015-01-10" @default.
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• W2024574743 title "Comparative Performance of Pyrethrum [Chrysanthemum cinerariifolium Treviranus (Vis.)] Extract and Cypermethrin on Some Field Insect Pests of Groundnut (Arachis hypogaea L.) in Southeastern Nigeria" @default.
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• W2024574743 doi "https://doi.org/10.9734/ajea/2015/15609" @default.
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