Biological Control of Spotted-Wing Drosophila: An Update on Promising Agents

Wang, Xingeng; Daane, Kent M.; Hoelmer, Kim A.; Lee, Jana C.

doi:10.1007/978-3-030-62692-1_8

Cited by 35 publications

(35 citation statements)

References 97 publications

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“…Possible alternatives to chemical pesticides are natural substances, such as repellents, deterrent to oviposition and toxicants [ 3 ], or biological control methods based on bioinsecticides [ 4 ]. To date, there are many studies on the use of biological agents to control SWD; pathogenic fungi, bacteria, and nematodes can be sprayed directly on epigeal parts of the plant or to soil to infect adults, larvae, and pupae.…”

Section: Introductionmentioning

confidence: 99%

Drosophila suzukii Susceptibility to the Oral Administration of Bacillus thuringiensis, Xenorhabdus nematophila and Its Secondary Metabolites

Mastore

Caramella

Quadroni

et al. 2021

Insects

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Drosophila suzukii, Spotted Wing Drosophila (SWD), is a serious economic issue for thin-skinned fruit farmers. The invasion of this dipteran is mainly counteracted by chemical control methods; however, it would be desirable to replace them with biological control. All assays were performed with Bacillus thuringiensis (Bt), Xenorhabdus nematophila (Xn), and Xn secretions, administered orally in single or combination, then larval lethality was assessed at different times. Gut damage caused by Bt and the influence on Xn into the hemocoelic cavity was also evaluated. In addition, the hemolymph cell population was analyzed after treatments. The data obtained show that the combined use of Bt plus Xn secretions on larvae, compared to single administration of bacteria, significantly improved the efficacy and reduced the time of treatments. The results confirm the destructive action of Bt on the gut of SWD larvae, and that Bt-induced alteration promotes the passage of Xn to the hemocoel cavity. Furthermore, hemocytes decrease after bioinsecticides treatments. Our study demonstrates that combining bioinsecticides can improve the efficacy of biocontrol and such combinations should be tested in greenhouse and in field in the near future.

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Section: Introductionmentioning

confidence: 99%

Drosophila suzukii Susceptibility to the Oral Administration of Bacillus thuringiensis, Xenorhabdus nematophila and Its Secondary Metabolites

Mastore

Caramella

Quadroni

et al. 2021

Insects

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“…The extent to which the two species of larval parasitoids have recapitulated their ecology from their area of origin in their introduced range in North America is remarkable. They have evidently re-formed a close association with D. suzukii across a wide range of host plants including cultivated and wild shrubs, trees, and low-growing plants in a wide variety of habitats, and seem to be co-existing with each other in a manner very similar to their native range (Wang et al 2020). Even the range of parasitism levels that we observed in our study (0-66%) and their level of variability, are qualitatively similar to those observed in Asia (Daane et al 2016;Girod et al 2018a;Giorgini et al 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Non-crop habitats serve as important sources of populations of D. suzukii that disperse to and impact cultivated fruit crops (Tonina et al 2018;Urbaneja-Bernat et al 2020), meaning that some component of crop protection strategies should ideally extend beyond the cultivated hosts. Because of its potential to act on D. suzukii populations at the landscape-level and season-long scales, biological control became a major focus of research early in the development of management tactics for D. suzukii (Wang et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…After considerable research to characterize the specificity and basic biology of these two species (e.g., Girod et al 2018b;Wang et al 2018;Wang et al 2019;Biondi et al 2021;Daane et al 2021), G. brasiliensis became the leading candidate for importation biological control of D. suzukii in North America and Europe (reviewed in Wang et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…The extent of their establishment across habitats and different host plants in their new adventive regions is unclear (Abram et al 2020). In addition, the seasonal dynamics of larval parasitism of D. suzukii remain mostly unknown, even in their native range, as studies in Asia were conducted during a limited seasonal time period (Wang et al 2020). Their adventive establishment in new geographic areas provides an opportunity to characterize the extent of their association with D. suzukii under new environmental and evolutionary contexts, which could inform their potential for effective biological control of D. suzukii via redistribution or introduction to other areas of the world.…”

Section: Introductionmentioning

confidence: 99%

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Adventive larval parasitoids reconstruct their close association with spotted-wing drosophila in the invaded North American range

Abram

Franklin

Hueppelsheuser

et al. 2021

Preprint

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Two species of larval parasitoids of the globally invasive fruit pest, Drosophila suzukii (Diptera: Drosophilidae), Leptopilina japonica and Ganaspis brasiliensis (both Hymenoptera: Figitidae), were detected in British Columbia, Canada in 2019. Both are presumed to have been unintentionally introduced from Asia, however; the extent of their establishment across different habitats with diverse host plants used by D. suzukii was unclear. In addition, there was no knowledge of the temporal dynamics of parasitism of D. suzukii by these two parasitoids. We repeatedly sampled the fruits of known host plants of D. suzukii over the entire 2020 growing season in British Columbia. We documented the presence of L. japonica and G. brasiliensis and estimated the apparent percentage of D. suzukii parasitized. Across a large region of southwestern British Columbia, both L. japonica and G. brasiliensis were found to be very common across a variety of mostly unmanaged habitats over the entire course of the season (May-October) in the fruits of most host plants known to host D. suzukii larvae. The two parasitoids were responsible for more than 98% of D. suzukii larval parasitism and usually co-existed. Parasitism of D. suzukii was variable among hosts plants and sites (0-66% percent parasitism) and appeared to be time-structured. Our study demonstrates that the close association between the two larval parasitoids and D. suzukii that exists in Asia has evidently been reconstructed in North America, resulting in the highest parasitism levels of D. suzukii yet recorded outside of its area of origin.

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Factors influencing oviposition behaviour of the invasive pest, Drosophila suzukii, derived from interactions with other Drosophila species: potential applications for control

Tungadi

Powell

Shaw

et al. 2023

Pest Management Science

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Drosophila suzukii (Matsumura) or spotted wing Drosophila is a worldwide invasive pest of soft‐ and stone‐fruit production. Female D. suzukii lay their eggs in ripening fruit and the hatched larvae damage fruit from the inside, rendering it unmarketable and causing significant economic loss. Current methods to reduce D. suzukii population in the field primarily rely on chemical insecticides which are not a sustainable long‐term solution and increase the risk of resistance developing. Several studies demonstrate that when D. suzukii encounter or coexist with other Drosophila on a food source, this is usually a disadvantage to D. suzukii, leading to reduced oviposition and increased larval mortality. These effects have potential to be exploited from a pest management perspective. In this review we summarise recent research articles focusing on the interspecific interactions between D. suzukii and other Drosophila species aimed at understanding how this drives D. suzukii behaviour. Potential semiochemical and microbiome impacts are postulated as determinants of D. suzukii behaviour. Development of control practices focusing on reducing D. suzukii populations and deterring them from laying eggs by utilising factors that drive their behaviour are discussed. © 2023 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Biological Control of Spotted-Wing Drosophila: An Update on Promising Agents

Cited by 35 publications

References 97 publications

Drosophila suzukii Susceptibility to the Oral Administration of Bacillus thuringiensis, Xenorhabdus nematophila and Its Secondary Metabolites

Drosophila suzukii Susceptibility to the Oral Administration of Bacillus thuringiensis, Xenorhabdus nematophila and Its Secondary Metabolites

Adventive larval parasitoids reconstruct their close association with spotted-wing drosophila in the invaded North American range

Factors influencing oviposition behaviour of the invasive pest, Drosophila suzukii, derived from interactions with other Drosophila species: potential applications for control

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