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instar
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中间形态,龄,其时期的节足动物
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详细解释：
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以下为句子列表：
英文: Objective The bioactivity of twelve novel pyridine ring derivatives of podophyllotoxin were tested against 3rd instar larvae of Culex pipiens pallens.
中文: 摘要目的研究新型吡啶类鬼臼毒素衍生物对3龄淡色库蚊幼虫的的毒杀活性。
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英文: The parasitized DBM larvae had prolonged their 4th instar duration obviously, and the later the larva had been parasitized, the longer this extended duration became.
中文: 小菜蛾幼虫被寄生后，其4龄发育历期较未被寄生的显著长，且寄生时龄期越大4龄历期延长越多。
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英文: Under a certain amount of touching S. guani (M. alternatus amount: S. guan amount=1:2～5), the bigger the M. alternatus instar was, the lower the parasitized effect was, the average parastizing death rate was 90% for the 3-instar larva, 77.5% for the 4-ins
中文: 在一定的接蜂量（虫蜂比1:2～1:5）下，松墨天牛龄期越大，被寄生效果越低，对3龄幼虫的平均寄生死亡率为90%，4龄虫平均为77.5%，5龄虫平均为52.5%。
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英文: When every S. guan carried about 1×10^7 spores of coccoid Beauveria bassiana, and touched the 4～5-instar of M. alternatus larva with 1:1, 1:2 and 1:3, the ratios of M. alternatus amounts to S. guan amounts, the parastizing infecting death rates were 55%,
中文: 每只管氏肿腿蜂携带球孢白僵菌约1×10^7个孢子时，对4～5龄松墨天牛幼虫按虫蜂比1:1、1:2和1:3接蜂，寄生感染死亡率分别为55%、75%和100%；管氏肿腿蜂携带球孢白僵菌防治木段内的松墨天牛幼虫寄生感染死亡率为87.13%。
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英文: The functional response of the first, second and third instar larvae of E. balteatus preying on Macrosiphum avenae (F.)
中文: 黑带食蚜蝇各龄幼虫对麦长管蚜Macrosiphum avenae(F.)
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