Efficacy of plant derived oils and extracts against white-fly, Bemisia tabaci (Gennadius) on sesame crop
2016
Iram, A. (Pir Mehr Ali Shah Arid Agriculture Univ., Rawalpindi (Pakistan). Dept. of Entomology) | Khan, J. (National Agricultural Research Centre, Islamabad (Pakistan). Insect Pest Management Programme) | Aslam, N. (National Agricultural Research Centre, Islamabad (Pakistan). Insect Pest Management Programme) | Ehsan-ul-Haq | Javed, H.I. | Irfan, M. | Rasool, A. | Mastoi, M.I. | Aslam, S.
Whitefly, Bemisia tabaci (Genn.) is a polyphagous pest and is reported on more than 600 host plants worldwide. Different methods are being used for its control. The present experiment was conducted to determine the effect of some plant extracts of mint (Mentha spp.) and geranium (Pelargonium graveolens) and soybean oil (Glycine max), mustard oil (Brassica spp.) and taramera oil (Eruca sativa) against whitefly, Bemisia tabaci on sesame crop. The data were recorded 24h before and 24h, 48h, 72h and 168h after application of each spray material. The results showed that whitefly population was significantly suppressed by both the botanical oils and extracts as compared to the control treatment but in general botanical oils showed significant results as compared to plant extracts. Soybean oil was quite effective in reducing whitefly population per leaf, while after second spray soybean oil and extract of Mentha spp. was more effective in the reducing whitefly population per leaf. The results indicated that plant derived oils and extracts have the potential to be used in plant protection strategies but still more research has to be incorporated in the pest management programmes.
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