椰心叶甲的耐寒力测定
Cold hardiness of palm leaf beetle, Brontispa longissima.
肖广江1,2;曾玲1;李庆1;陆永跃2
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DOI:
作者单位:1.四川农业大学农学院昆虫研究室雅安625014;2.华南农业大学昆虫生态研究室
广州510642
中文关键词:椰心叶甲,耐寒力,过冷却点,结冰点
英文关键词:Brontispa longissima; cold hardiness;supercooling points; freezing
points
中文摘要:测定椰心叶甲Brontispa longissima(Gestro)的过冷却点和结冰点。各虫态中过冷却点值以卵和蛹最低,分别为-9.8℃和-9.0℃,成虫较高,雌、雄成虫分别为-5.9℃和-5.5℃;幼虫的过冷却点最高,平均为-4.5℃。结冰点由高到低依次为2龄幼虫、5龄幼虫、4龄幼虫、1龄幼虫、3
英文摘要:Supercooling points and freezing points of all stages of palm leaf beetle Brontispa longissima (Gestro) were measured in a laboratory population from Futian, Shenzhen City. The mean supercooling points of the egg, first instar larva, second instar