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<p>Pseudococcidae is the second-largest family of scale insects (Hemiptera: Sternorrhyncha: Coccoidea). The species in this family are severe pests of ornamental plants and agricultural crops. Among their natural enemies, <i>Aenasius bambawalei</i> (Hayat) is a solitary parasitoid of the invasive mealybug <i>Phenacoccus solenopsis</i> Tinsley. Preadult developmental time, adult longevity, reproductive activity, and morphometric characteristics of <i>A. bambawalei</i> were evaluated on different mealybug species under laboratory conditions. The results showed successful parasitization of all tested species (<i>Planococcus citri</i> Risso, <i>Nipaecoccus viridis</i> (Newstead), and <i>Maconellicoccus hirsutus</i> (Green)). <i>A. bambawalei</i> exhibited higher parasitism rates (59.00%, 60.50%), emergence rates (92.94%, 93.16%), and female-biased sex ratios (68.75%, 79.20%) on <i>M. hirsutus</i> reared on <i>Hibiscus rosa-sinensis</i> L. Adults emerging from <i>M. hirsutus</i> also had longer hind tibiae, wings, and antennae. These findings provide useful information on the laboratory suitability of <i>M. hirsutus</i> as an alternative host for <i>A. bambawalei</i>, which may support mass-rearing and potential field applications.</p>

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Host preference of Anesius bambawalei (Hayat) on different species of mealybugs

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • Nooshin Zandi-Sohani,
  • Ebrahim Tamoli Torfi

摘要

Pseudococcidae is the second-largest family of scale insects (Hemiptera: Sternorrhyncha: Coccoidea). The species in this family are severe pests of ornamental plants and agricultural crops. Among their natural enemies, Aenasius bambawalei (Hayat) is a solitary parasitoid of the invasive mealybug Phenacoccus solenopsis Tinsley. Preadult developmental time, adult longevity, reproductive activity, and morphometric characteristics of A. bambawalei were evaluated on different mealybug species under laboratory conditions. The results showed successful parasitization of all tested species (Planococcus citri Risso, Nipaecoccus viridis (Newstead), and Maconellicoccus hirsutus (Green)). A. bambawalei exhibited higher parasitism rates (59.00%, 60.50%), emergence rates (92.94%, 93.16%), and female-biased sex ratios (68.75%, 79.20%) on M. hirsutus reared on Hibiscus rosa-sinensis L. Adults emerging from M. hirsutus also had longer hind tibiae, wings, and antennae. These findings provide useful information on the laboratory suitability of M. hirsutus as an alternative host for A. bambawalei, which may support mass-rearing and potential field applications.