First Detections of <i>Zaprionus indianus</i> (Diptera: Drosophilidae) in Minnesota

Holle, Sarah G.; Tran, Anh K.; Burkness, E. C.; Ebbenga, Dominique N.; Hutchison, W. D.

doi:10.18474/jes18-22

Cited by 8 publications

(9 citation statements)

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“…Similar to Cha et al (2015) trap samples did include other drosophilid species besides D. suzukii but data were not recorded for these species. A follow-up study to assess the species composition and relative abundance of different fly species present in the wineries may help guide growers in management efforts in their wineries (Holle et al 2019).…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Exclusion Netting for Spotted-Wing Drosophila (Diptera: Drosophilidae) Management in Minnesota Wine Grapes

Ebbenga

Burkness

Hutchison

2019

Journal of Economic Entomology

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Spotted-wing drosophila, Drosophila suzukii (Matsumura), an economically damaging invasive species of numerous fruit crops, was first detected in Minnesota in 2012. High fecundity, and short generation times facilitated a rapid rise in the global pest status of D. suzukii, particularly in North America and Europe. To date, the majority of crop injury research has focused on fruit crops such as blueberries, raspberries, and cherries. However, little is known regarding the impact of D. suzukii on the wine grape industry in the upper Midwest region of the United States. Field trials were conducted in Minnesota during the summers of 2017–2018 to examine season-long phenology of D. suzukii in wine grape vineyards and wineries, and to assess the efficacy of exclusion netting for control of D. suzukii. Four treatments were evaluated, 1) open plot check (control), 2) open plot treated with an insecticide, 3) exclusion netting, and 4) exclusion netting, with artificial infestations of D. suzukii adults. Exclusion netting was applied at véraison and removed at harvest. On each sample date, 20 berries (10 intact and 10 injured) were collected from each plot for dissection. The number of larvae and adults were recorded for each berry to determine infestation levels. As shown by mean larval infestations and injured berries across treatments, exclusion netting provided a significant reduction in the level of D. suzukii infested berries when compared with the untreated check. These results indicate that exclusion netting could provide an effective alternative management strategy for D. suzukii in wine grapes.

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Section: Discussionmentioning

confidence: 99%

Evaluation of Exclusion Netting for Spotted-Wing Drosophila (Diptera: Drosophilidae) Management in Minnesota Wine Grapes

Ebbenga

Burkness

Hutchison

2019

Journal of Economic Entomology

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“…Zaprionus indianus lays eggs on developing fruit, particularly on oranges, peaches and figs (reviewed in [37]). First detected in Florida in 2006 [37], the species has been moving north and westward [38]. Previously the species invaded South American in 1998, where it has received great attention because of economic crop losses there (reviewed in [39]).…”

Section: Introductionmentioning

confidence: 99%

Phenology of Drosophila species across a temperate growing season and implications for behavior

et al. 2019

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Drosophila community composition is complex in temperate regions with different abundance of flies and species across the growing season. Monitoring Drosophila populations provides insights into the phenology of both native and invasive species. Over a single growing season, we collected Drosophila at regular intervals and determined the number of individuals of the nine species we found in Kansas, USA. Species varied in their presence and abundance through the growing season with peak diversity occurring after the highest seasonal temperatures. We developed models for the abundance of the most common species, Drosophila melanogaster , D . simulans , D . algonquin , and the recent invasive species, D . suzukii . These models revealed that temperature played the largest role in abundance of each species across the season. For the two most commonly studied species, D . melanogaster and D . simulans , the best models indicate shifted thermal optima compared to laboratory studies, implying that fluctuating temperature may play a greater role in the physiology and ecology of these insects than indicated by laboratory studies, and should be considered in global climate change studies.

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“…Overall captures in Maine were low, and Z. indianus could exist at undetectable levels in the population. Inconsistent detections from year to year have also been reported in Kansas (Gleason et al 2019) and Minnesota (Holle et al 2019). The lack of consistent detections across years suggests that Z. indianus does not survive year-round but rather disperses annually and sometimes does not colonize the same locations every year, especially at the edge of the range.…”

Section: Discussionmentioning

confidence: 89%

“…Z. indianus was first found in the United States in 2005 in Florida (van der Linde et al 2006) and subsequently Virginia in 2012 (Pfeiffer et al 2019). Populations in North America have been reported as far north as Minnesota in the United States (Holle et al 2019) and Quebec, Canada (Renkema et al 2013). Despite many incidental reports of its presence, no comprehensive studies have documented the geographical range or relative abundance of Z. indianus during a single growing season in the United States.…”

Section: Introductionmentioning

confidence: 99%

“…Z. indianus likely does not survive winters in the north but rather disperses from southern refugia and recolonizes temperate habitats each year (Pfeiffer et al 2019). Indeed, reports of Z. indianus in more northern states show inconsistent detections from year to year (Gleason et al 2019, Holle et al 2019), though (Joshi et al 2014) speculated it overwintered in Pennsylvania. The exact locations where Z. indianus persists year-round remains to be investigated.…”

Section: Introductionmentioning

confidence: 99%

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Spatial and temporal variation in abundance of introduced African fig fly (Zaprionus indianus) (Diptera: Drosophilidae) in the eastern United States

Rakes

Delamont

Cole

et al. 2023

Preprint

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The African fig fly, Zaprionus indianus (Gupta), has spread globally from its native range in tropical Africa, becoming an invasive crop pest in select areas such as Brazil. Z. indianus was first reported in the United States in 2005 and has since been documented as far north as Canada. As a tropical species, Z. indianus is expected to have low cold tolerance, likely limiting its ability to persist at northern latitudes. In North America, the geographic regions where Z. indianus can thrive and seasonal fluctuations in its abundance are not well understood. The purpose of this study was to characterize the temporal and spatial variation in Z. indianus abundance to better understand its invasion of the eastern United States. We sampled drosophilid communities over the growing season at two orchards in Virginia from 2020-2022 and several locations along the East Coast during the fall of 2022. Virginia abundance curves showed similar seasonal dynamics across years with individuals first detected around July and becoming absent around December. Massachusetts was the northernmost population and no Z. indianus were detected in Maine. Variation in Z. indianus relative abundance was high between nearby orchards and across different fruits within orchards but was not correlated with latitude. Fitness of wild-caught females decreased later in the season and at higher latitudes. The patterns of Z. indianus abundance shown here demonstrate an apparent susceptibility to cold and highlight a need for systematic sampling to accurately characterize the range and spread of Z. indianus.

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First Detections of Zaprionus indianus (Diptera: Drosophilidae) in Minnesota

Cited by 8 publications

References 0 publications

Evaluation of Exclusion Netting for Spotted-Wing Drosophila (Diptera: Drosophilidae) Management in Minnesota Wine Grapes

Evaluation of Exclusion Netting for Spotted-Wing Drosophila (Diptera: Drosophilidae) Management in Minnesota Wine Grapes

Phenology of Drosophila species across a temperate growing season and implications for behavior

Spatial and temporal variation in abundance of introduced African fig fly (Zaprionus indianus) (Diptera: Drosophilidae) in the eastern United States

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