饲养密度对东亚小花蝽若虫生长发育及成虫获得率的影响  

Effects of rearing density on growth and development of nymphs and adult harvest rate of Orius sauteri

作　　者：李成军[1] 李娟[1] 赵钧 程玉渊 陈玉国[1] 白静科 刘林州 何晓冰 李淑君[1] LI Chengjun;LI Juan;ZHAO Jun;CHENG Yuyuan;CHEN Yuguo;BAI Jingke;LIU Linzhou;HE Xiaobing;LI Shujun(Key Laboratory for Green Preservation&Control of Tobacco Diseases and Pests in Huanghuai Tobacco Growing Area,Tobacco Research Institute of Henan Academy of Agricultural Sciences,Xuchang 461000,Henan,China;Nanyang Branch of Henan Provincial Tobacco Company,Nanyang 473000,Henan,China;Xuchang Branch of Henan Provincial Tobacco Company,Xuchang 461000,Henan,China;Pingdingshan Branch of Henan Provincial Tobacco Company,Pingdingshan 467002,Henan,China)

机构地区：[1]河南省农业科学院烟草研究所烟草行业黄淮烟区烟草病虫害绿色防控重点实验室,河南省许昌市461000 [2]河南省烟草公司南阳市公司,河南省南阳市473000 [3]河南省烟草公司许昌市公司,河南省许昌市461000 [4]河南省烟草公司平顶山市公司,河南省平顶山市467002

出　　处：《烟草科技》2022年第8期35-40,共6页Tobacco Science & Technology

基　　金：国家重点研发计划子课题“烟草化肥农药减施增效技术集成研究”(2018YFD0201104);河南省烟草公司科技项目“东亚小花蝽、蠋蝽工程化繁育及产品化开发研究与应用”(2020410000270017)。

摘　　要：为明确不同饲养密度对东亚小花蝽若虫生长发育的影响,在室内测定了恒定空间中不同饲养密度下东亚小花蝽若虫的存活率、成虫获得率和雌雄比等指标。结果显示,不同饲养密度对东亚小花蝽的存活率和成虫获得率均有显著影响,但对成虫雌雄比影响不显著。各处理中低龄若虫死亡率较高,特别在高密度饲养条件下表现更为明显,且随着饲养密度的增加,若虫存活率和成虫获得率均呈下降趋势,其中100~400头/瓶的若虫在饲养10 d时的存活率为69.81%~73.38%,成虫获得率为65.63%~69.63%。当饲养密度为1500和2000头/瓶时,饲养10 d时的存活率分别为46.77%和47.75%,成虫获得率分别为38.27%和37.76%。因此,较低密度条件下饲养能显著提高东亚小花蝽成虫的获得率。In order to clarify the effects of different rearing densities on the growth and development of O.sauteri nymphs,the indexes of survival rate,adult harvest rate and female-male ratio of O.sauteri nymphs at different rearing densities were evaluated in indoor constant space.The results showed that rearing density significantly affected the survival rate and adult harvest rate of O.sauteri nymphs,but had no significant effects on the female-male ratio.Among the treatments,the death rate of young nymphs was higher,especially at higher rearing density.The survival rate and adult harvest rate of nymphs presented a decreasing trend with the increase of rearing density.At lower rearing densities(100 to 400 nymphs per bottle),the nymph survival rate was 69.81%-73.38%and the adult harvest rate was 65.63%-69.63%after 10 days of rearing.While at higher rearing densities(1500 and 2000 nymphs per bottle),the nymph survival rates were 46.77%and 47.75%and adult harvest rates were 38.27%and 37.76%respectively after 10 days of rearing.Therefore,lower rearing density can promote the adult harvest rate of O.sauteri nymphs.

关 键 词：东亚小花蝽 饲养密度 若虫存活率 成虫获得率 

分 类 号：S476.2[农业科学—农业昆虫与害虫防治]