Journal of Pest Science (2021) 94, 1171-1182

Kent M. Daane, Xingeng Wang, Brian N. Hogg and Antonio Biondi (2021)
Potential host ranges of three Asian larval parasitoids of Drosophila suzukii
Journal of Pest Science 94 (4), 1171-1182
Abstract: Asobara japonica (Hymenoptera: Braconidae), Ganaspis brasiliensis and Leptopilina japonica (Hymenoptera: Figitidae) are Asian larval parasitoids of spotted wing drosophila, Drosophila suzukii (Diptera: Drosophilidae). This study evaluated these parasitoids' capacity to attack and develop from 24 non-target drosophilid species. Results showed that all three parasitoids were able to parasitize host larvae of multiple non-target species in artificial diet; A. japonica developed from 19 tested host species, regardless of the phylogenetic position of the host species, L. japonica developed from 11 tested species; and G. brasiliensis developed from only four of the exposed species. Success rate of parasitism (i.e., the probability that an adult wasp successfully emerged from a parasitized host) by the two figitid parasitoids was low in hosts other than the three species in the melanogaster group (D. melanogaster, D. simulans, and D. suzukii). The failure of the figitids to develop in most of the tested host species appears to correspond with more frequent encapsulation of the parasitoids by the hosts. The results indicate that G. brasiliensis is the most host specific to D. suzukii, L. japonica attacks mainly species in the melanogaster group and A. japonica is a generalist, at least physiologically. Overall, the developmental time of the parasitoids increased with the host's developmental time. The body size of female A. japonica (as a model species) was positively related to host size, and mature egg load of female wasps increased with female body size. We discuss the use of these parasitoids for classical biological control of D. suzukii.
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Database assignments for author(s): Kent M. Daane, Xin-Geng Wang, Antonio Biondi

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection
non-target effects/fate in environm.

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Drosophila suzukii		Korea-South
	Drosophila suzukii	Cherry (Prunus avium - Prunus cerasus)	U.S.A. (SW)
Asobara japonica (parasitoid)	Drosophila suzukii		Korea-South
Ganaspis brasiliensis (parasitoid)	Drosophila suzukii		Korea-South
Leptopilina japonica (parasitoid)	Drosophila suzukii		Korea-South