Effects of diets on the growth,development,and reproduction of the predatory mite Neoseiulus zwoelferi
To clarify the impact of different diets on the population growth,development,and reproduc-tion of the predatory mite Neoseiulus zwoelferi,age-stage two-sex life tables were employed to deter-mine the survival rate,developmental period,lifespan,and reproductive parameters of N.zwoelferi after feeding on Tetranychus ludeni,Carpoglyphus lactis,and Typha orientalis pollen,respectively.The re-sults indicated that all three diets met the requirements for the growth,development,and reproduction of N.zwoelferi.The net reproductive rate and gross reproduction rate in the T.ludeni treatment group were 28.99 and 36.99,respectively,significantly higher than those in the C.lactis and T.orientalis pol-len groups.The developmental duration from egg to adult for N.zwoelferi when feeding on C.lactis,T ludeni,and T.orientalis pollen were 5.28,7.34 and 6.87 d,respectively.The doubling time was 3.35,4.22,and 11.77 d,respectively,with the former significantly shorter than the latter two treatment groups.The average lifespan of adult females in the T.ludeni and C.lactis treatment groups was 2.75 and 4.92 days longer than that in the T.orientalis pollen treatment group,but the difference between the former two groups was not significant.The T.ludeni treatment group had the longest oviposition period(17.84 d),the shortest pre-oviposition period(2.75 d),and the highest fecundity(38.15 eggs/female).The T.orientalis pollen treatment group had the shortest oviposition period(1.82 d),the longest pre-ovi-position period(5.89 d),and the lowest fecundity(3.36 eggs/female).The intrinsic rate of increase and the finite rate of increase in the C.lactis treatment group were 0.21 d-1 and 1.23 d-1,respectively,signifi-cantly higher than those in the other two treatment groups.However,the mean generation time was 14.65 d,significantly lower than the other two treatment groups.These results indicate that all three di-ets could support the entire generations of N.zwoelferi.C.lactis was the optimal food for indoor rearing of N.zwoelferi,while T.orientalis pollen could serve as an alternative for short-term rearing.
PhytoseiidaeNeoseiulus zwoelferiTetranychus ludeniCarpoglyphus lactisTypha orien-talis pollendevelopmental stageage-stage two-sex life table
万方数据
维普
