摘要
美洲斑潜蝇是严重危害瓜、豆类蔬菜的世界性害虫之一，主要以幼虫潜伏在叶表皮下的叶肉组织中为害，给防治带来很大困难。本研究测定了葫芦素B对美洲斑潜蝇成虫产卵和取食的抑制作用。在非选择性试验中，当葫芦素B使用浓度为500-2000mg/L时，对美洲斑潜蝇成虫的产卵抑制率达31．2-69．9％，对美洲斑潜蝇成虫的取食抑制率达61．7-64．9％；在选择性试验中，葫芦素B使用浓度达1000-2000mg／L时，对美洲斑潜蝇成虫的产卵抑制率和取食抑制率分别为54．8-71．1％和57．2-65．2％；研究结果表明：利用葫芦素B可有效地抑制美洲斑潜蝇成虫的产卵和取食，减轻其幼虫的为害，为安全、有效地控制美洲斑潜蝇提供了一条新途径。
The vegetable leafminer, Liriomyza sativae Blanchard（Diptera： Agromyzidae）, is an important pests of a wide variety of vegetables throughout the world. The larvae of L. sativae feed in leaf mesophyll tissue. In no-choice test of tiffs study, the results showed that cucurbitacin B at 500 - 2000 mg/L appeared to significant oviposition and feeding deterrent activity against L. sativae adults. Oviposition Deterrent Index （ ODI ） and Deterrent Indices （DI） were 31. 2 - 69.9 % and 61.7 - 64.9 %, respectively.In choice test, ODI and DI of cucurbitacin B against L. sativae adults at 1000 - 2000 mg/L were 54.8 - 71. 1% and 57-2 - 65.2%, respectively.
出处
《天然产物研究与开发》
CAS
CSCD
2006年第1期29-32,共4页
Natural Product Research and Development
基金
Supported by the National Natural Foundation of China(39930120)
Key Lab of Biopesticide and Biochemistry,Ministry of Educa-tion(Fujian Agriculture and Forestry University)(KF0409)
