稻水象甲越冬成虫的耐寒力测定  

Measurement of cold hardiness in overwintering adults of the rice water weevil, Lissorhoptrus oryzophilus

作　　者：张文俊[1] 蒋明星[1] 郑雪浩 程家安[1] 

机构地区：[1]浙江大学应用昆虫学研究所,杭州310029 [2]浙江省乐清市植物检疫站,乐清35600

出　　处：《昆虫知识》2004年第4期339-341,共3页Entomological Knowledge

基　　金：国家重点基础研究发展计划资助项目 (2 0 0 2CB1 1 1 4 0 3)

摘　　要：测定了浙江乐清 (北纬 2 8 1 4°,东经 1 2 0 94°)稻水象甲LissorhoptrusoryzophilusKuschel越冬成虫的耐寒力 ,从 1 1月下旬至 3月下旬平均过冷却点温度为 -1 5 3～ -2 1 2℃ ,结冰点温度为 -1 4 0～ -1 8 6℃。结合发生地气温条件 ,讨论了该地冬春季低温对该虫越冬群存活的影响。Cold hardiness of overwintering adults of the rice water weevil, Lissorhoptrus oryzophilus Kuschel, were investigated in a population collected from Yueqing (28\^14°N,120\^94°E), Zhejiang, China.During late November (early winter) and late March (mid\|spring), the mean supercooling point and freezing points of the adults ranged from -15\^3℃ to -21\^2℃ and from -14\^0 to 18\^6 ℃, respectively. Potential effects of low temperatures during winter and spring on survival of overwintering adults were evaluated based upon the historical records of local air temperature.

关 键 词：稻水象甲 越冬 成虫 耐寒力 过冷却点 结冰点 

分 类 号：S435.11[农业科学—农业昆虫与害虫防治]