Supplementation of natural prey with pollen grains exerts an influence on the life table parameters of Neoseiulus californicus

Bulletin of Entomological Research
Afsaneh SoltaniyanDavoud Shirdel

Abstract

Better performance of generalist predators, as well as an increase in their density, may be an incentive factor in the ability of the predators to exploit more than one food item or mixed diets. In this study, the effects of four pollen grains (cedar, pear, apricot, and pistachio) when provided to Neoseiulus californicus in mixed diets with prey, Tetranychus urticae, were evaluated. The result indicated that the fastest female developmental time was observed on pistachio pollen + T. urticae, together with apricot pollen + T. urticae. Females reared on the mixed diet comprising pistachio pollen reflected the longest total life span duration, while the shortest total life span was observed in those on the diet that included pear pollen. Furthermore, the lowest fecundity, as well as the shortest reproduction period, was determined on the diets that included pear pollen, while the highest fecundity and the longest reproduction period were observed in pistachio pollen + T. urticae. In addition, the intrinsic (r) and finite rate of increase (λ), net (R0) and gross (GRR) reproductive rates were highest in pistachio pollen + T. urticae. These findings have important implications for developing a comprehensive biological control program...Continue Reading

References

Feb 21, 2003·Experimental & Applied Acarology·Maria NomikouMaurice W Sabelis
Feb 6, 2004·Experimental & Applied Acarology·Maria NomikouMaurice W Sabelis
Jan 1, 1997·Annual Review of Entomology·J A McMurtry, B A Croft
Jun 19, 2013·Experimental & Applied Acarology·Maria L PappasGeorge D Broufas
Dec 17, 2014·Experimental & Applied Acarology·Rosemarije BuitenhuisCynthia Scott-Dupree

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