Repellent and insecticide activity of Pelargonium x hortorum against Spodoptera littoralis (Boisd.).

نویسندگان

  • Mohamed Farag
  • Mohamed H M Ahmed
  • Heba Yousef
  • Samy S El-Badawey
  • Melegi A Abd El-Ghany
  • Adel A H Abdel-Rahman
چکیده

Insecticide and repellent activity of an acetone extract and oil from fresh leaves of Pelargonium x hortorum (cv. Orangesonne) were evaluated against the 2nd and 4th instar larvae of Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae). The oil showed medium toxicity against the 2nd instar and low toxicity against the 4th instar larvae, while the extract showed high significant toxicity at all concentrations tested against the two instars. On the other hand, both oil and extract exhibited highly significant repellency against the two tested instars. Volatile constituents of the oil were also identified by GC-MS analysis.

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مطالعه پارامترهای دموگرافیک برگخوار مصری پنبه Spodoptera littoralis (B.) (Lep.: Noctuidae) روی غذای مصنوعی در شرایط آزمایشگاهی

Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) از آفات مهم گیاهان زراعی مانند پنبه، شبدر، یونجه، چغندر قند و سبزیجات به شمار می‏رود و لاروهای آن از 40 خانواده از گیاهان مهم اغلب اقتصادی تغذیه می‌کنند. جدول زندگی برگخوار مصری پنبه S. littoralis روی غذای مصنوعی در دمای 2±25 درجه سلسیوس، رطوبت نسبی 5±60 درصد و طول روشنایی 16 و تاریکی 8 ساعت مطالعه شد. داده‏های به دست آمده بر اساس جدول ...

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عنوان ژورنال:
  • Zeitschrift fur Naturforschung. C, Journal of biosciences

دوره 67 7-8  شماره 

صفحات  -

تاریخ انتشار 2012