Biological Control with Egg Parasitoids other than Trichogramma – the Citrus and Grape Cases

Peña, Jorge E.; Jacas, J. A.; Triapitsyn, Serguei V.; Ulmer, Bryan J.; Duncan, Rita E.

doi:10.1007/978-1-4020-9110-0_13

Cited by 4 publications

(1 citation statement)

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“…Cosmocomoidea annulicornis (Ogloblin) (Hymenoptera: Mymaridae) is a solitary egg parasitoid of Proconiini sharpshooters including Tapajosa rubromarginata (Signoret) (Hemiptera: Cicadellidae) (Triapitsyn et al, 2010;Manzano et al, 2021), a polyphagous sharpshooter present in citrus agroecosystems and vector of the bacterium Xylella fastidiosa Wells et al (Xanthomonadaceae), causal agent of citrus variegated chlorosis (Dellapé et al, 2016). The mymarids are among the most important natural enemies of insect pests (Peña et al, 2009), and members of this family are biological control agents of sharpshooters (Grandgirard et al, 2007(Grandgirard et al, , 2008Banks et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Ovigeny strategy of the parasitic wasp Cosmocomoidea annulicornis (Hymenoptera: Mymaridae): effect of female age, feeding and host availability on reproductive traits

Manzano

Virla

Aráoz

et al. 2021

Bull. Entomol. Res.

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The reproductive traits of the mymarid wasp Cosmocomoidea annulicornis (Ogloblin) (Hymenoptera: Mymaridae) attacking eggs of the sharpshooter Tapajosa rubromarginata (Signoret) (Hemiptera: Cicadellidae) were evaluated under laboratory conditions. Bioassays were carried out to estimate the realized fecundity and egg load of females. The ovigeny index was calculated and different biological traits, such as body size, oöcyte length, gaster length and wing length, were analysed to assess significant associations between these traits and the species fitness. In addition, the effect of host availability and feeding on longevity and potential fecundity throughout life and the effect of female age on egg maturation dynamics were assessed. The results showed that C. annulicornis is a strongly synovigenic species. A positive correlation was found between fecundity and longevity of the females and between body size and oöcyte length. Contrary to expected, body size was not related to fecundity and longevity. Females lived significantly longer in the presence of hosts and honey than when they were host-deprived and honey-fed or both host and honey deprived. Host availability had a significant effect on the amount of eggs laid by C. annulicornis females. Female age was negatively associated with oöcyte length. Furthermore, females were able to mature additional eggs as they aged, nevertheless, when host-deprived, senescent females presented significantly less mature eggs than younger ones, suggesting a possible egg oosorption. These results might contribute to a better understanding of the reproductive potential of this species as a biocontrol agent.

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