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土荆芥的石油醚提取物及精油对冈比亚按蚊的杀虫活性
作者姓名:Abiodun A. DENLOYE  Oluwakemi K. AJELARA  Rasaq A. OLOWU  Adeolu O. ESHILOKUN  Winifred A. MAKANJUOLA
作者单位:Abiodun A. DENLOYE,Oluwakemi K. AJELARA(Department of Zoology, Lagos State University, Ojo, Lagos, Nigeria);Rasaq A. OLOWU(Department of Chemistry Lagos State Univeersity,Lagos,Nigeria);Adeolu O. ESHILOKUN(Department of Chemistry, University of Limpopo, South Africa);Winifred A. MAKANJUOLA(Department of Zoology, University of Lagos, Akoka, Lagos, Nigeria) 
摘    要:在室内条件下测试了土荆芥Chenopodium ambrosioides 叶片的石油醚提取物及精油对冈比亚按蚊Anopheles gambiae 0~2 d龄成虫和1~4龄幼虫的毒性。每一龄期各取30头幼虫分别接触50,100,250,500,750和1 000 mg/L提取物和精油,于24 h和48 h后记录死亡幼虫的数目。30头成虫在密封的长方形玻璃笼子中分别接触0.8,1.6,2.4 μL/L土荆芥精油蒸气, 24 h后记录死亡率。结果表明,测试的提取物和精油对冈比亚按蚊的各龄幼虫和成虫均具有毒性。48 h致死中浓度(LC50)的测试结果表明,石油醚提取物对1龄幼虫的毒性最强(14.89 mg/L),其次是对4龄幼虫(18.90 mg/L),对3龄幼虫的毒性最低(183.77 mg/L); 精油对4龄幼虫毒性最强(36.62 mg/L),其次是对1龄幼虫(90.75 mg/L)。推算的土荆芥精油对冈比亚按蚊的LC50为1.01 μL/L。本研究揭示了土荆芥对冈比亚按蚊的防治潜力。

关 键 词:疟蚊  冈比亚按蚊  土荆芥  杀虫活性  生测  致死中浓度  精油  石油醚提取  

Insecticidal activity of petroleum ether extract and essential oil of Chenopodium ambrosioides L.(Chenopodiaceae) against Anopheles gambiae(Diptera: Culicidae)
Abiodun A. DENLOYE,Oluwakemi K. AJELARA,Rasaq A. OLOWU,Adeolu O. ESHILOKUN,Winifred A. MAKANJUOLA.Insecticidal activity of petroleum ether extract and essential oil of Chenopodium ambrosioides L.(Chenopodiaceae) against Anopheles gambiae(Diptera: Culicidae)[J].Acta Entomologica Sinica,2009,52(8):923-928.
Authors:Abiodun A DENLOYE  Oluwakemi K AJELARA  Rasaq A OLOWU  Adeolu O ESHILOKUN  Winifred A MAKANJUOLA
Abstract:. ambrosioides for the control An. gambiae.
Keywords:Malaria  Anopheles gambiae  Chenopodium ambrosioides  insecticidal activity  bioassay  median lethal concentrations  essential oil  petroleum ether extract
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