دراسة بيولوجيا المتطفل NarayananCitrostichus phyllocnistoides (Eulophidae:Hymenoptera) مخبرياً كأحد المتطفلات المحلية لحافرة أنفاق أوراق الحمضيات في الساحل السوري(Gracillariidae:Lepidoptera)Phyllocnistis citrellaStainton
Abstract
أجريت دراسة للمتطفلCitrostichus phyllocnistoides Narayanan (Eulophidae: Hymenoptera), ضمن ظروف المختبر, عند متوسط درجة حرارة 18.12±2.12 مْ , بمجال حراري من 15 - 23مْ. أظهرت النتائج النهائية , أن المتطفل يمر بالمراحل التالية لإكمال دورة حياته : بيضة – يرقة – عذراء – بالغة ، إذ بلغ متوسط زمن تطور البيض 3.7±0.9 يوماً، بينما بلغ متوسط عمر اليرقات 7.8±0.9 يوماً، أي استمرت الفترة الزمنية من فقس البيض وحتى دخول اليرقات في طور العذراء من 6 - 10 أيام، أما مدة طور العذراء فقد بلغت بالمتوسط 12.7±1.03 يوماً، أي استمرت الفترة من بداية التعذر وحتى خروج بالغة المتطفل من 11 - 14 يوماً، وجدنا أن المدة الزمنية اللازمة للتطور الإجمالي للمتطفل من البيضة وحتى انبثاق البالغة بلغ بالمتوسط 23.3±2.7 يوماً .أما متوسط طول عمر البالغات, فقد بلغ 3.8± 0.8 يوماً للذكور , و 4.2 ± 0.9 يوماً للإناث. A laboratory study was conducted on the parasitoid Citrostichus phyllocnistoides Narayanan (Eulophidae : Hymenoptera)under average of temperature (18.12± 2.12 Cº) with Temperature range from 15-23Cº. The final results oflaboratory study indicated that parasitoid was passed four stages to complete life cycle. The average development time was: 3.7±0.9 days for eggs – 7.8±0.9 days for larvae,(the time required from the eggs to hatch and continued untilthelarvae enter the pupal stage 6-10 days) , and12.7±1.03 days for pupa (the time required from the beginning of pupation to emergence of adult 11-14 days). The parasitoid needs in average23.3±2.7 days to complete its life cycle. Male longevity 3.8±0.8 days , and female 4.2±0.9 days.Downloads
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