不同品种百合对棉蚜发育和繁殖的影响OA

[Objective]Study was carried out to clarify the adaptability of Aphis gossypii Glover on different lily varieties,and to achieve an eco-friendly and efficient biological control strategy by leveraging the intrinsic aphid resistance of lilies to manage aphid damage.[Method]Under laboratory conditions,the development and reproduction of cotton aphid on five lily varieties(Fangio,ConcaD'or,Sorbonne,Tarisa,and Viviana)were observed using biological methods,and experimental population life table was constructed.[Results]Different lily varieties significantly affected the development and reproduction of A.gossypii.The survival rate of cotton aphid was lowest on Tarisa.On Fangio,the adult longevity(5.32 d)and total lifespan(9.56 d)were the shortest,and fecundity(23.59 offspring)was the weakest,all significantly lower than those on other varieties.On Viviana,the adult longevity(11.75 d)and total lifespan(16.01 d)were the longest,and fecundity(50.24 offspring)was the highest,significantly exceeding those on other varieties.Population life table parameters showed that the intrinsic rate of increase(r=0.312),finite rate of increase(λ=1.366),and net reproductive rate(R₀=36.84)of A.gossypii on Viviana were significantly higher than those on other varieties,while the parameter values on Fangio and Tarisa were the lowest.[Conclusion]Based on various indicators,Viviana is a suitable host variety for the population growth of A.gossypii,whereas Fangio and Tarisa are unsuitable.The research results provide a theoretical basis for the forecasting and management of A.gossypii and the breeding of aphid-resistant lily varieties in lily production.