c3518cb17d976b8

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی دکتری، گروه گیاه‌پزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

2 دانشیار، گروه گیاه‌پزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

3 استاد گروه گیاه‌پزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

4 دانشیار، بخش تحقیقات گیاه‌پزشکی، مرکز تحقیقات کشاورزی و منابع طبیعی استان آذربایجان شرقی، تبریز

5 استادیار گروه گیاه‌پزشکی، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج

چکیده

فراوانی و پارازیتیسم پارازیتوییدهای لاروی و شفیرگی شب‌پرۀ پشت‌الماسی،Plutella xylostella L. (Lepidoptera: Plutellidae) در مزارع کشت چلیپاییان چهار منطقۀ زیستی شامل استان‌های گلستان، البرز، اصفهان و خوزستان طی سال‌های 1389 و 1390 تعیین شد. در مجموع شش گونه پارازیتویید لاروی شامل (Kurdjumov, 1912) Cotesia vestalis (=plutellae) (در هر چهار منطقۀ زیستی)،Apanteles sp.  (کرج و اصفهان)، Bracon hebetor Say  (کرج) هر سه از خانوادۀ Braconidae، Microplitis sp. (دزفول) و Diadegma semiclausum (Hellen)  (کرج، اصفهان و دزفول) از خانوادۀ Ichneumonidae و Oomyzus sokolowskii (Kurdjumov) (کرج و اصفهان) از خانوادۀ Eulophidae، یک گونۀ پارازیتویید شفیرگی Diadromus subtilicornis (Gravenhorst) (اصفهان و دزفول) از خانوادۀ Ichneumonidae و دو هیپرپارازیتویید شفیره از جنس‌هایMokrzeckia  (دزفول) و Pteromalus (کرج و اصفهان) هر دو از خانوادۀ Pteromalidae جمع‌آوری شد. گونۀ C. vestalis تنها گونه‌ای بود که در همۀ مناطق زیستی تحت بررسی حضور داشت و فراوانی عمدۀ آن مربوط به ماه‌های گرم سال بود. برخلاف تحقیقات قبلی حضور و فعالیت خوب این گونه در نواحی با ارتفاع کم (حدود 140 متر از سطح دریا) نیز مشاهده شد. گونۀ D. semiclausum به عنوان فراوان‌ترین زنبور پارازیتویید در مناطق زیستی البرز، اصفهان و خوزستان ثبت شد، اما در گلستان یافت نشد. با توجه به نرخ بالای پارازیتیسم شب‌پرۀ پشت‌الماسی به‌وسیلۀ این گونه، D. semiclausum گزینۀ مناسبی برای استفاده در برنامه‌های بیوکنترل شب‌پرۀ پشت‌الماسی است.

کلیدواژه‌ها

عنوان مقاله [English]

Abundance and parasitism rate of larval and pupal parasitoids of Diamondback Moth, Plutella xylostella L. (Lepidoptera: Plutellidae) in four regions of Iran

نویسندگان [English]

  • Hamid-Reza Pourian 1
  • Reza Talaei-Hassanloui 2
  • Ahmad Ashouri 3
  • Hossein Lotfalizadeh 4
  • Jamasb Nozari 5

1 Department of Plant Protection, Campus of Agriculture and Natural Resources, University of Tehran, ‎PO Box 4111, Karaj, 31587-11167, Iran.

2 Department of Plant Protection, Campus of Agriculture and Natural Resources, University of Tehran, ‎PO Box 4111, Karaj, 31587-11167, Iran.

3 Department of Plant Protection, Campus of Agriculture and Natural Resources, University of Tehran, ‎PO Box 4111, Karaj, 31587-11167, Iran.

4 Department of Plant Protection, East-Azarbaijan Research Centre for Agriculture and Natural Resources, PO Box 5355179854, Tabriz, Iran

5 Department of Plant Protection, Campus of Agriculture and Natural Resources, University of Tehran, ‎PO Box 4111, Karaj, 31587-11167, Iran.

چکیده [English]

Abundance and parasitism rate of larval and pupal parasitoids of Diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae) were studied at four different climatic regions in Iran (Golestan, Alborz, Isfahan and Khozestan Provinces). Nine wasp species including six larval and one pupal parasitoid and two hyperparasitoid wasps were determined. The  identified  parasitoids were included the braconids Cotesia vestalis (Kurdjumov, 1912)(at four selected regions), Apanteles sp. (Alborz and Isfahan Provinces), Bracon hebetor Say (Alborz Province), Microplitis sp. (Khozestan Province), ichneumoind Diadegma semiclausum (Hellen) (Alborz, Isfahan and Khozestan Provinces), the eulophid Oomyzus sokolowskii (Kurdjumov) (Alborz and Isfahan Provinces) as larval parasitoids and the ichneumonid Diadromus subtilicornis (Gravenhorst) as pupal parasitoid (Isfahan and Khozestan Provinces). In addition, the petromalid Mokrzeckia sp. (Khozestan Province) and Pteromalus sp. (Alborz and Isfahan Provinces) were identified as hyperparasitoids that parasitize C. vestalis and D. semiclausum, respectively. In three regions (Alborz, Isfahan and Khozestan Provinces), D. semiclausum was themost predominant species with high parasitism rate. Our findings demonstreated thatthe D. semiclausum, is good candidate and could be considered for release in P. xylostella biological control programs.

کلیدواژه‌ها [English]

  • Plutella xylostella
  • larval and pupal stages
  • parasitoid
  • Region
  • abundance
  • Iran
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