Integrated management of whitefly, Bemisia tabaci (Gennadius) on Tomato
KrishiKosh
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Title |
Integrated management of whitefly, Bemisia tabaci (Gennadius) on Tomato
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Creator |
L, Ramazeame
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Contributor |
H, Khader Khan
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Subject |
vegetables, animal developmental stages, fungi, planting, crops, biological phenomena, eggs, bemisia tabaci, oils, plant extracts
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Description |
Tomato is one of the important vegetable crops grown in Karnataka. Tomato crop suffers from several biotic stresses among the important pest of this crop whitefly is one of the most severe pest leading to heavy losses of the crop. Among the tomato cultivars, longest life cycle of whitefly was recorded on Arka Abha; however on Arka vikas the least life cycle period was recorded. The highest adult male and female longevity were recorded on Arka abha and followed by Arka vikas and Avinash –II. Among the weed species, longest life cycle of whitefly was recorded on Euphorbia spp followed by wild radish. The highest adult male and female longevity was observed on Euphorbia spp. followed by wild radish. Identification of whitefly biotype through RAPD-PCR analysis of whiteflies revealed the presence of B biotype in Bangalore area on tomato. Among these predator and parasitoids, Macrolophus pygmaeus and Axinoscymnus puttarudriahi and Encarsia transvena (Timberlake) found in large numbers and can be used to control this pest. Isolated the entomopathogenic fungi like Beauveria bassiana, Verticillium lecanii, Metarhizium anisopliae and Paecilomyces farinosus from the infected whitefly. In the varietal preference, the most preferred tomato cultivars for oviposition activity of B. tabaci were Pusa ruby, PKM-1 and Arka vikas. Whereas Nandi, Sankranthi, and Vybhav were least preferred cultivars. Vybhav and Nandi cultivars were relatively resistant to B. tabaci. In the border crops, tomato- baby corn combination was best followed by tomato – cowpea border crop resulted in reduced whitefly population incidence in the main field. Among the botanicals Neem oil, NSKE and Pongamia oil were found to be effective in bringing down whitefly population. Vertical and cylindrical yellow sticky trap above the ground level proved to be effective monitoring devices of whitefly. Among the entomopathogenic fungi Beauveria bassiana and Verticillium lecanii was highly effective in the laboratory. |
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Date |
2016-05-17T14:26:13Z
2016-05-17T14:26:13Z 2012-06-25 |
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Type |
Thesis
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Identifier |
Th-10208
http://krishikosh.egranth.ac.in/handle/1/66030 |
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Language |
en
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Format |
application/pdf
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Publisher |
University of Agricultural Sciences, Bengaluru
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