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dc.creatorKhan,Alam
dc.creatorIslam,Shariful
dc.creatorRahman,Moizur
dc.creatorZaman,Tanjeena
dc.creatorHaque,Ekramul
dc.date2014-01-01
dc.date.accessioned2019-05-02T21:22:22Z
dc.date.available2019-05-02T21:22:22Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100062
dc.identifier.urihttp://revistaschilenas.uchile.cl/handle/2250/82441
dc.descriptionBACKGROUND: Tribolium castaneum (Herbst) is a major pest of stored grain-based products, and cause severe damage to cereal grains throughout the world. The present investigation was aimed to determine the pesticidal and pest repellent activities of 2α,3β,21β,23,28-penta hydroxyl 12-oleanene against T. castaneum. The compound 2α,3β,21β,23,28-penta hydroxyl 12-oleanene is a triterpenoid which was isolated from the roots of Laportea crenulata Gaud. Surface film technique was used for pesticidal screening, whereas, pest repellency property of the triterpenoid was determined by filter paper disc method. RESULTS: At 24 hours of exposure duration, significant mortality records (80% and 86%) were observed at doses 0.88 and 1.77 mg/cm². No significant change in mortality records was observed when duration of exposure was increased up to 48 hours. The triterpenoid showed significant repellency activity at doses 0.47 and 0.94 mg/cm². CONCLUSION: These data suggest that the triterpenoid 2α,3β,21β,23,28-penta hydroxyl 12-oleanene possess both pesticidal and pest repellency activities against T. castaneum and can be used in controlling the pest of grain-based products.
dc.formattext/html
dc.languageen
dc.publisherSociedad de Biología de Chile
dc.relation10.1186/0717-6287-47-68
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceBiological Research v.47 2014
dc.subjectLaportea crenulata
dc.subject2α,3β,21β,23,28-penta hydroxyl 12-oleanene
dc.subjectBotanical pesticide
dc.subjectBotanical pest repellent
dc.subjectTribolium castaneum
dc.titlePesticidal and pest repellency activities of a plant derived triterpenoid 2α,3β,21β,23,28-penta hydroxyl 12-oleanene against Tribolium castaneum


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