Formosan Entomologist (2005) 25, 87-94

Lekhnath Kafle, Po-Yung Lai and Yin-Fu Chang (2005)
Life history of Ganaspidium utilis (Beardsley) (Hymenoptera: Eucoilidae) in Taiwan
Formosan Entomologist 25 (2), 87-94
Abstract: This study was conducted to determine the life history of a solitary, larval-pupal endoparasitoid, Ganaspidium utilis (Beardsley), of Liriomyza trifolii (Burgess) at 25 ± 2°C. The female of G. utilis deposits its eggs in the larvae of L. trifolii. There are four larval instars, which began to develop after L. trifolii pupated. The mean number of progeny produced per G. utilis female was 66.7 ± 18.4 individuals. The sex ratio of the offspring of G. utilis was 1 male : 1.4 females when 50 leafminer larvae were provided daily for parasitization. No significant difference was observed in the mean number of male and female progeny produced.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Po-Yung Lai

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Liriomyza trifolii		Taiwan
Ganaspidium utilis (parasitoid)	Liriomyza trifolii		Taiwan