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室内对中红侧沟茧蜂Microplitis mediator滞育诱导的光周期反应及敏感光照虫态进行了研究。结果表明:在16℃和18℃温度下,当光周期为10L∶14D时,中红侧沟茧蜂的滞育率最高为98%和87.8%;其次是光周期为8L∶16D时,滞育率为78.7%和73%;光周期为12L∶12D时,滞育率为55.8%和50.8%;而在全光照LL,光周期22L∶2D,20L∶4D,18L∶6D,16L∶8D,14L∶10D,2L∶22D和全黑暗DD时的滞育率均为0。中红侧沟茧蜂属于典型的长日照发育型,在16℃时诱导滞育的临界光周期是7.03L∶16.97D和12.21L∶11.79D;在18℃时是6.75L∶17.25D和12.03L∶11.97D。16℃时中红侧沟茧蜂对光照反应最敏感时期为2龄幼虫第5~8天,2龄幼虫第1~4,9~12和13~16天及3龄期次之,卵期和1龄幼虫不敏感。
Indoor photoperiod-induced photoperiodic response and sensitive photoperiod of Microplitis mediator were studied. The results showed that when the light period was 10L: 14D, the diapause rate was highest at 98% and 87.8% at 16 ℃ and 18 ℃, followed by 8L:16D at photoperiod The fertility rates were 78.7% and 73%, respectively. The diapause rates were 55.8% and 50.8% at photoperiod 12L: 12D, respectively. , 14L:10D, 2L:22D and full darkness DD were all 0. The C. dorsalis is a typical long-day developmental type with a critical photoperiod of 7.03 L: 16.97 D and 12.21 L: 11.79 D for inducing diapause at 16 ° C; 6.75 L: 17.25 D and 12.03 at 18 ° C L: 11.97D. At 16 ℃, the 2nd instar larvae were most sensitive to light during the 5th to 8th instar larvae, followed by 1st to 4th, 9th to 12th and 13th to 16th instars and 3rd instar larvae of 2nd instar larvae, Not sensitive to 1st instar larvae.