哈尔滨地区大猿叶虫发育历期与生物学特性
The developmental duration and biological characteristics of Colaphellus bowringi in Harbin
胡志凤1**,于洪春1***,孙文鹏2,薛芳森3
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作者单位：1东北农业大学农学院 哈尔滨 150030； 2沈阳世博园 沈阳 110163； 3江西农业大学昆虫研究所 南昌 330045
中文关键词：大猿叶虫;生活史;生物学特性; 发育起点温度;有效积温;哈尔滨
英文关键词：Colaphellus bowringi， life history, bionomics, developmental threshold temp
中文摘要：在哈尔滨对白菜上的大猿叶虫Colaphellus bowringi Baly的生活史和生物学习性进行观察研究。结果表明，大猿叶虫在哈尔滨地区绝大多数个体1年发生1代，少部分个体1年发生2代。主要以成虫入土在2～27 cm土层中滞育越冬。越冬成虫翌年4月下旬开始出土活动。第1代发生在5上旬至7月上旬，第2代发生于6月中旬至7月中旬。所有成虫在7月下旬以后均滞育越冬。在25℃条件下，雌虫产卵期为6～55 d，平均为30.95 d，单雌平均产卵量为454.9粒。在25℃各虫态的发育历期为：卵(4.46±0.33)d，幼虫(8.22±0.26)d，蛹(4.17±0.22)d。各虫态发育起点温度卵为10.80℃，幼虫为10.95℃，蛹为9.79℃；有效积温卵为64.82日·度，幼虫为117.37日·度，蛹为64.36日·度。
英文摘要：The life history and biological characteristics of the population of leaf beetles, Colaphellus bowringi Baly, on the host plant Brassica kinensis in Harbin were reported. The results showed that most individuals occurred 1 generation per year, but a few individuals had 2 generations per year. The beetles hibernated as adult in the soil. The diapaused adults burrowed in soil to depths of 2～27 cm. The adults began to appear from the soil inthe late April. The first generation occurred from early May to early July. About 11 (±1.49) % of the first generation adults reproduced and the others entered diapause. The second generation occurred from mid_June to mid_July. All adults beetles entered in soil to hibernate at the end of July. The oviposition period of the overwintered generation was 6～55 d with the average of 30.95 d. The female could produce 454.9 eggs on average. At 25℃, developmental duration was (4.46±0.33) d in the egg stage, (8.22±0.26) d in the larval stage, and (4.17±0.22) d in the pupal stage. Developmental threshold temperature was 10.80℃ for eggs, 10.95℃ for larvae and 9.79℃ for pupae. The effective accumulative mperature was 64.82 day-degrees for eggs, 117.31 day-degrees for larvae, and 64.36 day-degrees for pupae.