不同浓度噻虫嗪对点蜂缘蝽种群的跨代效应  

Cross-generational effects of different concentrations of thiamethoxam on Riptortus pedestris (Hemiptera: Alydidae) populations

作　　者：王自杰 李丽霞 李小花 李文博 高宇 李进步 史树森 WANG Zi-Jie;LI Li-Xia;LI Xiao-Hua;LI Wen-Bo;GAO Yu;LI Jin-Bu;SHI Shu-Sen(Key Laboratory of Soybean Diseases and Pests Control,Ministry of Agriculture and Rural Affairs,College of Plant Protection,Jilin Agricultural University,Changchun 130118,China;Observation and Experiment Station of Crop Pests of Jiamusi,Ministry of Agriculture,Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences,Jiamusi 154007,China;College of Biological Resource and Food Engineering,Qujing Normal University,Qujing 655011,China;Suzhou Academy of Agricultural Sciences,Suzhou 234099,China)

机构地区：[1]吉林农业大学植物保护学院,农业农村部大豆病虫害防控重点实验室,长春130118 [2]黑龙江省农业科学院佳木斯分院,农业部佳木斯作物有害生物科学观测实验站,佳木斯154007 [3]曲靖师范学院生物资源与食品工程学院,曲靖655011 [4]宿州市农业科学院,宿州234099

出　　处：《昆虫学报》2023年第3期312-325,共14页Acta Entomologica Sinica

基　　金：财政部和农业农村部:国家现代农业产业技术体系(CARS-04);安徽省重点研究与开发计划(202104a06020035);黑龙江省应用技术研究与开发计划项目(GA20B104)。

摘　　要：【目的】为探明不同浓度噻虫嗪对点蜂缘蝽Riptortus pedestris种群的跨代效应。【方法】点蜂缘蝽3龄若虫用不同浓度[LC_(10)(5.2 mg/L), LC_(20)(11.2 mg/L), LC_(30)(19.6 mg/L), LC_(40)(31.6 mg/L)和LC_(50)(49.4 mg/L)]噻虫嗪药液浸渍处理的大豆籽粒喂食24 h,存活若虫继续饲养至成虫羽化,继续繁殖建立其F_(1)代种群,并系统记录其F_(1)代种群的生长发育和繁殖情况,采用年龄-龄期两性生命表分析F_(1)代种群生物学参数。【结果】点蜂缘蝽3龄若虫取食不同浓度噻虫嗪处理的大豆籽粒后,其F_(1)代种群的发育历期和产卵前期均有所延长,其中LC_(50)噻虫嗪处理卵历期和若虫历期最长,较对照(清水)的分别延长了1.01和8.39 d;LC_(20)噻虫嗪处理成虫产卵前期最长,较对照的延长了3.54 d。噻虫嗪处理不同程度缩短了雌雄成虫的寿命,与对照相比,LC_(50)噻虫嗪处理雌成虫寿命缩短了6.89 d,雄成虫寿命缩短了8.94 d。与对照相比,噻虫嗪处理使点蜂缘蝽F_(1)代种群特定年龄-龄期存活率、单雌产卵量、内禀增长率r_(m)、周限增长率λ、净增殖率R_(0)及种群趋势指数I均随噻虫嗪浓度的升高而降低,而平均世代周期T则有所延长,其中,LC_(40)噻虫嗪处理使单雌产卵量降低最多,降低了30.37%;LC_(50)噻虫嗪处理使内禀增长率r_(m)、周限增长率λ、净增殖率R_(0)和种群趋势指数I降低最多(分别下降了150.40%, 1.88%, 55.92%和65.07%),使平均世代周期T最长,延长了8.4679 d。【结论】噻虫嗪处理点蜂缘蝽若虫对其F_(1)代种群的生长发育和繁殖仍有抑制作用,并且随噻虫嗪浓度的升高抑制效果增强。噻虫嗪对点蜂缘蝽防控效果表现出世代传递效应。【Aim】The purpose of this study is to investigate the cross-generational effects of different concentrations of thiamethoxam on Riptortus pedestris populations.【Methods】The 3rd instar nymphs of R.pedestris were fed with the soybean seeds treated with different concentrations of thiamethoxam[LC 10(5.2 mg/L),LC 20(11.2 mg/L),LC 30(19.6 mg/L),LC_(40)(31.6 mg/L)and LC_(50)(49.4 mg/L)]by liquid-dipping method for 24 h.The surviving nymphs were reared until the adults emerged and continued to breed to establish the F_(1) populations.The growth,development and reproduction of the F_(1) population were systematically recorded.And the biological parameters of the F_(1) population were analyzed using the age-stage two-sex life table.【Results】After the 3rd instar nymphs of R.pedestris were fed with the soybean seeds exposed to different concentrations of thiamethoxam,the developmental duration and pre-oviposition period of the F_(1) population of R.pedestris were prolonged.The egg duration and nymphal duration in the treatment with LC_(50) of thiamethoxam were the longest,being prolonged by 1.01 and 8.39 d,respectively,and the pre-oviposition period in the treatment with LC 20 of thiamethoxam was the longest,being prolonged by 3.54 d,as compared to those in the control(clear water).Thiamethoxam treatment shortened the longevity of adult females and males to some degree,which was reduced by 6.89 and 8.94 d,respectively,in the treatment with LC_(50) of thiamethoxam,as compared to that in the control.Compared to the control,thiamethoxam treatment resulted in the decrease in the age-stage specific survival rate,number of eggs laid per female,intrinsic rate of increase r_(m),finite rate of increaseλ,net reproductive rate R_(0) and population trend index I of the F_(1) population of R.pedestris with increasing thiamethoxam concentration,while caused the prolonged mean generation time T.Compared to the control,treatment with LC_(40) of thiamethoxam caused the maximum reduction in the number of eggs laid per female,whic

关 键 词：点蜂缘蝽 噻虫嗪 亚致死浓度 生长发育 种群参数 

分 类 号：Q965.9[生物学—昆虫学]