Applied Entomology and Zoology (1996) 31, 433-441

Satoshi Nakamura (1996)
Inbreeding and rotational breeding of the parasitoid fly, Exorista japonica (Diptera: Tachinidae), for successive rearing
Applied Entomology and Zoology 31 (3), 433-441
Abstract: Successive rearing of the tachinid fly, Exorista japonica TOWNSEND, a natural enemy of many lepidopterous larvae, was conducted using two different breeding techniques in order to provide insects for small and medium-scale laboratory experiments. Ten pairs of parasitoids collected in the field were used as the parent generation to begin the inbreeding and rotational breeding experiments. The rates of adult emergence and host mortality, decreased even at F₂, and lines derived from all pairs became extinct by F₆, under the inbreeding conditions. However these rates did not differ significantly from F₁ to F₉ during rotational breeding. When a sister and a non-sister female fly were simultaneously provided as potential mates, male flies did not avoid sib-mating. Therefore, rotational breeding is necessary to prevent inbreeding depression when rearing these parasitoids in a laboratory on a relatively small scale.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Satoshi Nakamura

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
rearing/culturing/mass production

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
Exorista japonica (parasitoid)			Japan