A preliminary study on distributions and oviposition sites of Drosophila suzukii (Diptera: Drosophilidae) and its parasitoids on wild cherry tree in Tokyo, central Japan

Matsuura, Akira; Mitsui, Hideyuki; Kimura, Masahito T.

doi:10.1007/s13355-017-0527-7

Cited by 30 publications

(37 citation statements)

References 18 publications

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“…The same Ganaspis cf. brasiliensis is the main larval parasitoid of D. suzukii in South Korea (Daane et al 2016 ), Japan (Kasuya et al 2013a ; Wachi et al 2015 ; Matsuura et al 2017 ) and China (Girod et al 2018b ), where it probably also attacks two other fruit-inhabiting drosophilids, D. pulchrella and D. subpulchrella , the two sister species of D. suzukii .…”

Section: Discussionmentioning

confidence: 99%

“…Both populations happily attacked and developed in larvae of D. melanogaster, D. subobscura and D. suzukii in all substrates but not in the four other hosts, with the exception of one successful development in a D. immigrans larva. Leptopilina japonica frequently parasitized larvae of D. suzukii in Japan (Novković et al 2011 ; Matsuura et al 2017 ), South Korea (Daane et al 2016 ) and China, where it probably attacks also larvae of D. pulchrella and D. subpulchrella (Girod et al 2018b ). In Japan, it is also found on D. biauraria and D. rufa and it has been successfully reared on D. simulans in the laboratory (Novković et al 2011 ).…”

Section: Discussionmentioning

confidence: 99%

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Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Girod¹,

Lierhmann²,

Urvois³

et al. 2018

J Pest Sci

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The Asian spotted wing drosophila, Drosophila suzukii, has recently become a serious pest of soft fruits in Europe. Classical biological control through the introduction of larval parasitoids from its native range in Asia is presently being considered. However, host specificity of potential biological control agents has to be determined to avoid releasing species that may have unintended non-target impacts. Larvae of six different European non-target fly species and the target D. suzukii were exposed either on diet or blueberries to three Asian larval parasitoids, Asobara japonica, Leptopilina japonica, and Ganaspis cf. brasiliensis, and one European species, Leptopilina heterotoma. Asobara japonica showed the lowest specificity, attacking and developing in all Drosophilidae. Leptopilina japonica successfully parasitized two non-target Drosophilidae, D. melanogaster and D. subobscura, with one singly progeny emerging from D. immigrans. Ganaspis cf. brasiliensis had the highest level of specificity but variations occurred between two geographical populations tested. A Japanese population was strictly specific to D. suzukii, whereas another population from China parasitized D. suzukii, D. melanogaster and sporadically D. subobscura. The European L. heterotoma successfully developed in D. melanogaster, D. subobscura and occasionally in D. immigrans, but nearly all eggs and larvae in D. suzukii were encapsulated. These results show that Ganaspis cf. brasiliensis is the species with the highest potential for biological control, but more studies are needed on its taxonomic status and the existence of biotypes or cryptic species varying in their specificity before field releases can be conducted in Europe.Electronic supplementary materialThe online version of this article (10.1007/s10340-018-1003-z) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Girod¹,

Lierhmann²,

Urvois³

et al. 2018

J Pest Sci

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“…Rohlfs and Hoffmeister (2004) suggested that the inverse density-dependent parasitism could occur if individuals occurring within resources are less likely attacked than those exposed to parasitoids at surface. In our previous studies (Mitsui et al 2007;Kasuya et al 2013a,b;Kimura 2015;Matsuura et al 2018), however, the parasitism rate is not so high in drosophilid flies exploiting patchily distributed fruit and mushroom in central Japan. It is not certain whether the parasitism rate reaches the level at which the Rohlfs and Hoffmeister's (2004) mechanism works.…”

Section: Discussionmentioning

confidence: 72%

“…,b; Kimura ; Matsuura et al . ), however, the parasitism rate is not so high in drosophilid flies exploiting patchily distributed fruit and mushroom in central Japan. It is not certain whether the parasitism rate reaches the level at which the Rohlfs and Hoffmeister's () mechanism works.…”

Section: Discussionmentioning

confidence: 90%

Distribution pattern and competition of insects breeding on Camellia japonica flower

Mitsui

Kimura

2018

Entomological Science

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The distribution pattern and competition of insects exploiting Camellia japonica flowers were studied in Tokyo, central Japan, to understand how their distributions are determined. Dasiops sp. of Lonchaeidae (Diptera) exploited flower buds and showed random distribution, whereas Drosophila unipectinata, D. oshimai and D. lutescens of Drosophilidae (Diptera) and Epuraea commutata of Nitidulidae (Coleoptera) exploited fully opened, late and fallen flowers and showed aggregated distribution. From the distribution pattern, it is assumed that Dasiops sp. has clutches of single egg whereas drosophilid and nitidulid species have clutches of more than one egg. In resource supplementary experiments, body size of drosophilid flies increased if resources were supplemented, although their survival is assumed to be unaffected. However, their body size did not decrease with increase of larval density in resource patches. It is therefore unclear whether resource competition occurs among drosophilid flies in Camellia flowers in nature. From the present and previous studies, it is assumed that aggregation (or production of clutches of more than one egg) is related to the use of fermenting or decayed resources; aggregation might increase larval survival and/or performance under the presence of molds or microorganisms.

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“…In the present study, cherries had been detached from plants. However, these fruits are no longer economically viable and SWD preferentially oviposit in attached fruit . Therefore, it is recommended that future work focuses on attached fruit.…”

Section: Discussionmentioning

confidence: 99%

Potential of the European earwig (Forficula auricularia) as a biocontrol agent of the soft and stone fruit pest Drosophila suzukii

Bourne

Fountain

Wijnen

et al. 2019

Pest Management Science

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BACKGROUND The unintentional introduction of Drosophila suzukii (Matsumura) from Asia has caused global economic losses in the soft and stone fruit industries. Pesticide use can have unintended negative impacts on natural enemies, disrupting attempts to incorporate integrated pest management programmes. Generalist predators could potentially act as biocontrol agents of D. suzukii. In this context, the predatory capabilities of the European earwig (Forficula auricularia) were investigated. RESULTS In semi‐field conditions, F. auricularia were effective at reducing the reproductive rate of D. suzukii in more densely populated enclosures. In controlled laboratory conditions, significant negative effects of earwigs were observed for both low (three breeding pairs) and high (six breeding pairs) D. suzukii densities. Both semi‐field and laboratory experiments revealed that F. auricularia predation on adult D. suzukii could not account for the subsequent reductions in population density. CONCLUSIONS Reductions in both larval and adult offspring in the presence of earwigs indicate an impact on D. suzukii via predation prior to metamorphosis or disruption of oviposition. Although F. auricularia may predate D. suzukii populations, its capacity to act as a biocontrol agent may be limited. However, results suggest that F. auricularia may be a more effective biocontrol agent earlier in the growing season. © 2019 Society of Chemical Industry

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A preliminary study on distributions and oviposition sites of Drosophila suzukii (Diptera: Drosophilidae) and its parasitoids on wild cherry tree in Tokyo, central Japan

Cited by 30 publications

References 18 publications

Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Host specificity of Asian parasitoids for potential classical biological control of Drosophila suzukii

Distribution pattern and competition of insects breeding on Camellia japonica flower

Potential of the European earwig (Forficula auricularia) as a biocontrol agent of the soft and stone fruit pest Drosophila suzukii

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