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New findings on the egg load dynamics of a fruit fly parasitoid

Congratulations to Dr Kiran Mahat and Prof. Anthony R. Clarke for recently publishing the following brief report in Biocontrol Science and Technology!


Read the publication.


"The influence of diet and the presence of fruit fly hosts on the egg load dynamics of the parasitoid Diachasmimorpha kraussii (Hymenoptera: Braconidae)"


Kiran Mahat & Anthony R. Clarke


Abstract

This study investigated the egg maturation rates and the effect of feeding and starvation on the egg load dynamics of Diachasmimorpha kraussii (Fullaway), a parasitoid of the Queensland fruit fly, Bactrocera tryoni (Froggatt). Three day old unfed parasitoids had significantly more mature eggs than 3-d old fed wasps. No egg resorption was observed in these parasitoids. When exposed to a physiologically suitable host, parasitoids had a higher egg load than those exposed to a physiologically unsuitable host. Manipulation of the wasp’s feeding status, or exposure to suitable hosts, might help improve the reproductive potential of this parasitoid if bred for inundative release.


Photo: A female Diachasmimorpha sp. (Source: Zamek et al. 2012).

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