昆虫学报2017，Vol.60Issue(6)：659-665,7.DOI:10.16380/j.kcxb.2017.06.006
湿度对梨小食心虫存活和繁殖的影响
Effects of humidity on the survival and fecundity of Grapholitha molesta (Lepidoptera: Tortricidae)
摘要
Abstract
[Aim] This study aims to investigate the effects of humidity on the survival rate and boring rate of the oriental fruit moth Grapholitha molesta (Busck),and the critical stage of humidity affecting its final survival rate.[Methods] At five relative humidity (25％,40％,55％,70％ and 85％) indoor,the number of eggs laid per female,egg hatching rate,larval boring rate,pupation rate,pupal eclosion rate and the time of oviposition,pupation and eclosion of G.molesta were recorded and analyzed.[Results] Humidity had no effect on pupation rate of G.molesta,which stayed 100％ at all the five relative humidity.Humidity had a significant influence on the number of eggs laid per female,egg hatching rate,larval boring rate,pupal eclosion rate and generation survival rate,all of which increased with the humidity.The most critical life stage that the humidity had a significant influence on the survival rate was the larval boring stage,followed by adult,egg,pupal and the last instar larval stages.Humidity had significant influences on the generation survival rate in the egg hatching stage,adult stage and larval boring stage.Meanwhile,higher humidity was beneficial for oviposition,pupation and eclosion of this insect,while the development was delayed under drier conditions.[Conclusion] Humidity has significant effects on the survival rate,larval boring rate and fecundity of G.molesta.Adult,egg and larval boring stages of G.molesta are the critical stages when its population and boring rate are impacted by humidity.关键词
梨小食心虫/湿度/存活/繁殖/蛀果率Key words
Grapholitha molesta/humidity/survival/fecundity/boring rate分类
生物科学引用本文复制引用
庾琴,封云涛,郭晓君,郭贵明,郝赤,范仁俊..湿度对梨小食心虫存活和繁殖的影响[J].昆虫学报,2017,60(6):659-665,7.基金项目
山西省攻关项目(20150311014-3) （20150311014-3）
国家公益性行业(农业)科研专项(201103024) （农业）
山西省自然科学基金项目(2015011072) （2015011072）
