昆虫学报2023，Vol.66Issue(11)：1500-1509,10.DOI:10.16380/j.kcxb.2023.11.009
阿维菌素对白背飞虱发育和繁殖的亚致死效应
Sublethal effects of abamectin on the development and reproduction of Sogatella furcifera(Hemiptera:Delphacidae)
摘要
Abstract
[Aim]To investigate the sublethal effects of abamectin on Sogatella furcifera.[Methods]The 3rd instar nymphs of S.furcifera were treated with abamectin at LC10(0.016 mg/L)and LC25(0.031 mg/L)concentrations using rice seedling dipping method.The longevity of female and male adults and the number of eggs laid per female of F0 generation were recorded,and the developmental duration,fecundity,survival rate,female and male adult longevity,intrinsic rate of increase(r),finite rate of increase(λ),net reproductive rate(R0),and mean generation time(T)of F1 generation were recorded,and the age-stage,two-sex life table was established.[Results]After the 3rd instar nymphs of S.furcifera were exposed to LC10 and LC25 concentrations of abamectin,the number of eggs laid per female of the F0 generation was significantly reduced,but the hatching rate was not affected as compared to the control(distilled water).Abamectin at the LC25 concentration significantly prolonged the male adult longevity,whereas the female adult longevity was significantly shortened by the LC10 of abamectin compared with the control.In addition,LC10 and LC25 concentrations of abamectin significantly reduced the number of eggs laid per female of the F1 generation(LC10:170.64 grains;LC25:155.79 grains)compared with the control(193.38 grains).In the LC10 and LC25 concentration treatment groups,the intrinsic rate of increase(r),finite rate of increase(λ)and mean generation time(T)of the F1 generation were slightly lower than those in the control group,while the reproductive rate(R0)showed a decreasing trend but not significantly different from that in the control.[Conclusion]Abamectin stress at the sublethal concentrations could somewhat inhibit the offspring population growth of S.furcifera.关键词
白背飞虱/阿维菌素/亚致死效应/年龄-阶段两性生命表/繁殖力/生长发育Key words
Sogatella furcifera/abamectin/sublethal effect/age-stage,two-sex life table/fecundity/growth and development分类
生物科学引用本文复制引用
廖琪,赵彬彬,方玲,周南欣,何树林,徐杉,杨洪,周操..阿维菌素对白背飞虱发育和繁殖的亚致死效应[J].昆虫学报,2023,66(11):1500-1509,10.基金项目
重庆市博士"直通车"科研项目(CSTB2022BSXM-JCX0067) （CSTB2022BSXM-JCX0067）
重庆市自然科学基金面上项目(cstc2021jcyj-msxmX0235) （cstc2021jcyj-msxmX0235）
国家自然科学地区基金项目(31960537) （31960537）
