温度对益蝽的生长发育和种群生命参数的影响  

Development and Population Parameters of Picromerus lewisi Scott(Hemiptera:Pentatomidae)at Different Temperatures

作　　者：唐艺婷 王孟卿[1] 张礼生[1] TANG Yiting;WANG Mengqing;ZHANG Lisheng(Institute of Plant Protection,Chinese Academy of Agricultural Sciences,Beijing 100193,China;Huaiyin Institute of Agricultural Sciences of Xuhuai Region in Jiangsu,Huaian 223001,China)

机构地区：[1]中国农业科学院植物保护研究所,北京100193 [2]江苏徐淮地区淮阴农业科学研究所,淮安223001

出　　处：《中国生物防治学报》2023年第5期1076-1082,共7页Chinese Journal of Biological Control

基　　金：国家重点研发计划(2021YFD1400703);中国烟草总公司科技重大专项(110202101028-LS-03,110202201022LS-06)。

摘　　要：益蝽Picromerus lewisi Scott是一种捕食性天敌昆虫。为了探索不同温度对益蝽生长发育及种群生命参数的影响,提高益蝽的饲养效率,本试验设置了18℃、21℃、25℃、28℃、32℃和36℃6个温度梯度进行试验。试验结果表明益蝽在18~32℃可以完成发育,当温度为36℃时,益蝽卵孵化率为0,不能完成发育。在18~32℃范围内,益蝽的发育速率与温度成线性正相关,益蝽从卵到成虫的发育速率和温度的关系模型为:Y=0.002533X―0.03648,所需要的有效积温是394.7 DD,益蝽卵到成虫的发育起点温度为14.40℃,32℃时益蝽从卵到成虫的发育历期最短(22.40 d)。温度梯度对益蝽的体质量影响不大,雌成虫体质量普遍高于雄成虫。种群生命表显示28℃时益蝽种群净增殖率最高(179.50)、平均世代周期最短(57.50 d),在25℃下,种群净增殖率和平均世代周期次之,分别是125.64和64.59 d。Picromerus lewisi Scott is a predatory insect.The effects of temperature on growth and development and population parameters of P.lewisi were investigated for the purpose of improving the rearing efficiency.At the six temperatures of 18℃,21℃,25℃,28℃,32℃and 36℃,P.lewisi could develop successfully between 18 and 32℃,while the eggs did not hatch at 36℃.The development rate of P.lewisi was linearly and positively correlated with the temperature between 18 and 32℃,which yielded an equation of Y=0.002533X-0.03648.The degree-day requirements was 394.7 DD,and the developmental threshold temperature was 14.40℃.At 32℃,the developmental period from egg to adult was the shortest(22.40 d).The temperatures exerted no influence on weight of P.lewisi That was larger in females than in males.The results of population life table showed that the net reproductive rate was the highest at 28℃(179.50),and the generation time was the shortest(57.50 d),which was seconded by those at 25℃(125.64 and 64.59 d,respectively).

关 键 词：益蝽 温度 种群参数 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]