تأثیر چرخه روشنایی بر زیست‌شناسی شب‌پره آرد Ephestia kuehniella (Lepidoptera: Pyralidae)‌ در شرایط آزمایشگاهی

نوع مقاله : مقاله کامل، فارسی


1 گروه حشره شناسی ، واحد تاکستان ، دانشگاه آزاد اسلامی ، تاکستان، ایران

2 Iranian Research Institute of Plant Protection, Tehran, Iran.


شب‌پره آرد، E. kuehniella، حشره‌ای همه‌جایی و مهم‌ترین آفت محصولات انباری به ‌ویژه آرد است. این تحقیق به بررسی تأثیر چرخه روشنایی ( تاریکی مطلق و دوره نوری 16 و تاریکی 8 ساعت) بر رشد و نمو و تولیدمثل این گونه در شرایط آزمایشگاهی (دمای  5/0± 30 درجه سلسیوس و رطوبت نسبی 5±50 درصد)پرداخته است.  نتایج این بررسی نشان داد که چرخة روشنایی بر طول دوره رشدی مراحل مختلف رشدی شب‌پره آرد و تولیدمثل تأثیر معنی‌داری دارد. همچنین چرخه روشنایی بر الگوی خروج و طول عمر حشرات نر و ماده تأثیر می‌گذارد. میانگین تخم‌ریزی شب‌پره آرد  در شرایط تاریکی مطلق و دوره نوری 16 و تاریکی 8 ساعت به ترتیب 67/28±54/160 و 29/32±53/163 عدد تخم است، اما تفاوت معنی‌داری با یکدیگر ندارند. این داده‌ها امکان درک بهتر دینامیک جمعیت شب‌پره آرد را به ما داده و می‌توان از آن برای توسعه بهینه سیستم پرورش این شب‌پره استفاده کرد.


عنوان مقاله [English]

Effect of photoperiod on biology of Ephestia kuehniella (Lepidoptera: Pyralidae) under laboratory condition

نویسندگان [English]

  • Zeinab Moghadamfar 1
  • Hajar Pakyari 1
1 Department of Entomology, Takestan Branch, Islamic Azad University, Takestan, Iran
چکیده [English]

Mediterranian flour moth, Ephestia kuehniella, is a cosmopolitian pest of stored grain products,
particularly flour. The development and reproduction of E. kuehniella, were investigated at two
photoperiod (continuous darkness and 16L:8D photoperiod) under laboratory condition (30±0.5 °C and 50±5 % RH). The result indicated that egg, larval and pupa development time at continuous darkness and 16L:8D photoperiod were significantly differ. The photoperiod affected the emergence pattern and longevity of female and male. The mean number of eggs laid by E. kuehniella at continuous darkness and 16L:8D photoperiod were 160.54±28.67 and 163.53±32.29 respectively but they were not
significantly different. These data allow us a better insight into E. kuehniella population dynamics, and these finding can be used to optimize rearing system.

کلیدواژه‌ها [English]

  • Ephestia kuehniella
  • biology
  • photoperiod
  • Development
  • Reproduction
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