EPPO Global Database

Drosophila suzukii(DROSSU)

EPPO Datasheet: Drosophila suzukii

Last updated: 2020-05-18


Preferred name: Drosophila suzukii
Authority: (Matsumura)
Taxonomic position: Animalia: Arthropoda: Hexapoda: Insecta: Diptera: Drosophilidae
Common names in English: cherry drosophila, spotted-wing drosophila (US)
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Notes on taxonomy and nomenclature

In June 1916, maggots were found to be infesting cherries (Prunus avium) in Yamacho, Higashi Yamanashi County, Yamanashi Prefecture, Japan (Kanzawa, 1935). Infested fruits were collected and the adult flies that emerged were confirmed as a species of Drosophila (Kanzawa, 1935). The species was later described in 1931 by Dr Shounen Matsumura as Drosophila suzukii Matsumura, and he gave it the common name of cherry drosophila (Kanzawa, 1935). Little is known about its geographical origin; it is considered native to Far-East Asia (China, Japan and Korean Peninsula) but it was described also in the Kashmir region of India as the D. suzukii subspecies indicus (Parshad and Paika, 1965). D. suzukii belongs to the subgenus Sophophora, which is divided into several species groups. One of them, the melanogaster species group, also contains the famous species, extensively used in experimental biology and genetics, Drosophila melanogaster Meigen (Powell, 1997). The melanogaster group is further divided into species subgroups, one of which (the suzukii subgroup) comprises, together with 6 other subgroups, the ‘Oriental lineage’ (Kopp and True, 2002; Schawaroch, 2002; van der Linde et al., 2010). However, relationships between and within these subgroups are still far from being resolved, and the suzukii subgroup itself is commonly regarded as polyphyletic (Kopp and True, 2002). Recent papers suggested that D. biarmipes is a sister taxon of D. suzukii (Yang et al., 2011; Chiu et al., 2013; Ometto et al., 2013; Rota Stabelli et al., 2013), in accordance with previous findings (Kopp and True, 2002; Barmina and Kopp, 2007). However, other studies by Prud’homme et al. (2006) and van der Linde and Houle (2008) supported that D. subpulchrella is a sister species of D. suzukii (with D. biarmipes being the sister species of D. subpulchrella + D. suzukii).

EPPO Categorization: A2 list
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HOSTS 2020-05-05

This species is predisposed towards infesting living material and prefers to infest, and subsequently develop in, slightly under ripe undamaged fruit. Fruits become susceptible to D. suzukii as they start to colour. D. suzukii has been shown to possess a broad host plant range, with thin-skinned berries (e.g. cranberries, blueberries, strawberries, raspberries) and stone fruits (e.g. cherries, peaches, plums) being particularly susceptible to infestation (Bellamy et al., 2013). Grapevine, Vitis vinifera, is also counted among the host plants of this pest. However, it has been shown that only some varieties, due to their chemical-physical characteristics, are susceptible to oviposition during the ripening phase (e.g. the "Schiava" variety) (Ioriatti et al., 2015; Baser et al., 2018). D. suzukii in fact prefers above all varieties with red fruits or berries, late harvest and less firm skin. The role of D. suzukii as a vector of microorganisms responsible for vine acid rot has been also demonstrated (Ioriatti et al., 2018). Differences in fruit susceptibility are present between species and also between varieties within the same fruit species (Lee et al., 2011). Fruit penetration force is one potential measure of host susceptibility, but host attractiveness will likely depend upon additional factors, such as soluble sugar content (Burrack et al., 2013; Ioriatti et al., 2015). If there are no healthy fruits available, D. suzukii is able to infest damaged fruits or rotten fruits (Kanzawa, 1935). Fallen fruits or the damaged areas of fruits of the following species have also been found to be infested: Prunus persica, Malus pumila var. domestica, Prunus triflora, Prunus armeniaca var. Anzu, Pyrus pyrifolia (Nakai, 1926), Pyrus sinensis, Eriobotrya japonica, Solanum lycopersicum (Kanzawa, 1939), Rubus microphyllus (Mitsui et al., 2010), as well as over-ripe figs (Ficus carica) still on the tree (Yu et al., 2013). Large numbers of D. suzukii were also reared from rotting strawberry guava fruits (Psidium cattleyanum) collected from trees and on the ground (Kido et al., 1996). It has been observed feeding upon injured or culled fruit including apple and oranges (Walsh et al., 2001). Some D. suzukii specimens emerged from fruits of Rubus crataegifolius, Alangium platanifolium, Cornus kousa, Torreya nucifera, Viburnum dilatatum. D. suzukii adults emerged from flowers of Styrax japonicus (Mitsui et al., 2010) and in early spring in southern Japan, the fly was also observed to breed on flowers of Camellia japonica (Nishiharu, 1980). During late winter and in early spring in Europe it has been shown that D. suzukii is able to develop in fruits of Viscum album subsp. laxum and Hedera helix (Briem et al., 2016; Grassi et al., 2018).

A very wide range of additional host plants including several wild and ornamental non-crop species have been recently provided by both American and European researchers further showing the extremely high polyphagy of D. suzukii (Lee et al., 2015; Kenis et al., 2016; Poyet et al., 2016).

Host list: Actinidia chinensis, Actinidia deliciosa, Actinidia kolomikta, Arbutus unedo, Berberis aquifolium, Citrus x aurantium var. sinensis, Cornus sp., Cotoneaster lacteus, Diospyros kaki, Elaeagnus umbellata, Eriobotrya japonica, Eugenia involucrata, Ficus carica, Fragaria x ananassa, Lindera benzoin, Lonicera caerulea, Malpighia emarginata, Malus domestica, Mangifera indica, Morella rubra, Morus sp., Phytolacca americana, Prunus armeniaca, Prunus avium, Prunus cerasus, Prunus domestica, Prunus laurocerasus, Prunus lusitanica, Prunus persica, Pyrus pyrifolia, Rubus fruticosus, Rubus hedycarpus subsp. armeniacus, Rubus idaeus, Rubus laciniatus, Rubus microphyllus, Rubus sp., Rubus spectabilis, Rubus ursinus, Rubus x loganobaccus, Sambucus nigra, Sarcococca confusa, Solanum dulcamara, Solanum lycopersicum, Solanum villosum, Symphoricarpos albus, Vaccinium corymbosum, Vaccinium sp., Vitis vinifera


The species is endemic in Asia. It was first recorded as invasive in Hawaii in 1980 and then simultaneously in California and in Europe in 2008. In the following years, it rapidly spread throughout most of the temperate regions of Asia, Europe, North and South America. The use of predictive models has indicated that D. suzukii has the potential to further invade other areas in Africa and Australia (dos Santos et al., 2017).

EPPO Region: Algeria, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Finland, France (mainland, Corse), Georgia, Germany, Greece (mainland, Kriti), Hungary, Ireland, Israel, Italy (mainland, Sardegna, Sicilia), Montenegro, Morocco, Netherlands, Poland, Portugal (mainland, Azores, Madeira), Romania, Russia (Far East, Southern Russia), Serbia, Slovakia, Slovenia, Spain (mainland), Sweden, Switzerland, Türkiye, Ukraine, United Kingdom (England)
Africa: Algeria, Comoros, Kenya, Mayotte, Morocco, Reunion, South Africa
Asia: China (Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Heilongjiang, Henan, Hubei, Hunan, Jiangxi, Jilin, Liaoning, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang), India (Chandigarh, Jammu & Kashmir, Karnataka, Uttarakhand, Uttar Pradesh), Iran, Israel, Japan (Hokkaido, Honshu, Kyushu, Ryukyu Archipelago), Korea Dem. People's Republic, Korea, Republic, Myanmar, Pakistan, Taiwan, Thailand
North America: Canada (Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward Island, Québec), Mexico, United States of America (Alabama, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Hawaii, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming)
South America: Argentina, Brazil (Distrito Federal, Espirito Santo, Minas Gerais, Parana, Rio de Janeiro, Rio Grande do Sul, Santa Catarina), Chile, Uruguay
Oceania: French Polynesia

BIOLOGY 2020-05-05

The first detailed information about the biology of D. suzukii is available in Kanzawa (1935) and reviewed by Cini et al. (2012) and Asplen et al. (2015). D. suzukii overwinters as adults in reproductive diapause (Wallingford et al., 2016). Flies emerge in spring, but some adults are active also during the winter when the day temperature is warm (Rossi Stacconi et al., 2016). A seasonal phenotypic plasticity has been observed in field populations in temperate regions, as overwintering populations show a different morph phenotype, characterized by darker pigmentation and larger body size, which is more resistant to cold conditions and thus has enhanced winter survival (Shearer et al., 2016). Eggs are laid in ripening fruits and the number of eggs per fruit ranges from one to several, scattered over the fruit. D. suzukii host selection under field conditions may differ among plant species and among varieties within a species, and laboratory observations suggest that fruit firmness may be one driver of this selection (Burrack et al., 2013; Ioriatti et al., 2015; Baser et al., 2018). Egg-laying lasts 10-59 days with 7-16 (but up to 38) eggs laid per day. Each female can lay 350-400 eggs during her lifetime (Kanzawa, 1939). It has been reported that within the first four weeks, a female lays between 85 and 148 eggs and that the number of eggs laid depends on the host plant. Eggs hatch in 1-3 days, larvae mature in 3-13 days and most of them pupate in the fruit, but some drop and creep into the soil. Pupation lasts between 4 and 15 days. Mating of new adults can happen any time of the day, but it can be observed more often during the day when the temperature is relatively high. Males are always active, but females are passive. Courtship is described by Kanzawa (1939) and Revadi et al. (2015) and role of the visual stimulus in the courtship was investigated by Fuyama (1979). Recently the crucial role of specific substrate borne vibrations during courtship in D. suzukii has been demonstrated (Mazzoni et al., 2013). The Drosophila pheromone cis-11-octadecenyl acetate (cVA) is used by many species belonging to the melanogaster group and plays a role in assessing sex mate quality, mating status, and social interactions. Surprisingly, D. suzukii does not produce cVA (Dekker et al., 2015) but intraspecific chemical communication at close range is mediated by changes in the quantity and quality of several cuticular hydrocarbons (Snellings et al., 2018). Females oviposit after mating and can repeat mating several days after but at a lower rate with respect to other drosophila species (Kanzawa, 1939; Krüger et al., 2019). Recently, the presence of a marking aggregation pheromone released by D. suzukii egg-laying females over the oviposition site has been reported (Tait et al., 2020). In the Northern hemisphere, oviposition generally occurs from April to November and Mitsui et al. (2010) reported that D. suzukii collected in autumn were reproductively immature. However, Grassi et al. (2018) found the first overwintered females with mature eggs as early as February suggesting its great potential for oviposition early in the season and the presence of winter/early spring host plants. No reproductive behaviour was observed during laboratory experiments where D. suzukii was kept for the entire life cycle at temperatures below 10°C (Dalton et al., 2011). The authors assumed that the males, which were emerging in those experimental conditions, were rendered sterile and were unable to mate successfully with emerged females. Sterility in males is also reported when temperatures are above 30°C (Walsh et al., 2011). 

The life cycle from egg hatching to adult emergence ranges from about 9-10 days to 21-25 days at 25°C and 15°C, respectively (Kanzawa, 1939). Laboratory observations document development from egg to egg-laying female ranging from about a week to 12-15 days at 21.1°C and at 18.3 °C, respectively (Walsh et al., 2011: Wiman et al., 2014). Under laboratory conditions, D. suzukii can complete up to 15 generations per year. Observation across a wide geographical range in Asia indicated that the number of generations per year could range from 3 to 13 depending on the climatic conditions (Kanzawa, 1939). According to degree day models, it is estimated that D. suzukii can complete 3 to 9 generations per year in the Western United States, Canada and Northern Italy (Coop, 2010; Tochen et al., 2014; Wiman et al., 2014). The lifespan of adults is 20-56 days, but some overwintering adults lived for more than 200 days (Kanzawa, 1935). During experiments simulating winter conditions of the US Pacific Northwest, adult D. suzukii could survive up to 88 days at constant 10°C, with no marked change in mortality when flies were subjected to a 7 day freeze period; and adult longevity decreased progressively at constant temperature below 10°C. Adult longevity was estimated to be longer if adults emerge from pupae subjected to similar temperatures. These results suggested that acclimation may prolong survival of D. suzukii when later subject to cold temperatures (Dalton et al., 2011).

The D. suzukii genome is comparable in size and repeat content to other Drosophila species. Genome-scale relaxed-clock analyses indicate a late Miocene origin of D. suzukii, concomitant with paleo-geological and climatic conditions that suggest an adaptation to temperate climates. 



The larval feeding causes the fruit to collapse around the oviposition site (Grassi et al., 2011). The oviposition scar exposes the fruit to secondary attack by pathogens and other insects (Hauser et al., 2009; Ioriatti et al., 2018).


A detailed morphological description of each stage is given by Kanzawa (1935), and it has recently been updated by Hauser (2011) and by Vlach (2010) who added morphological details and a dichotomous key, respectively. D. suzukii adults are drosophilid flies (2-3 mm long) with red eyes, a pale brown or yellowish-brown thorax and black transverse stripes on the abdomen. The antennae are short and stubby with branched arista. Sexual dimorphism is evident: males display a dark spot on the leading top edge of each wing, and females are larger and possess a large serrated ovipositor (Atallah et al., 2014). The dark spots on the wings together with two sets of black tarsal combs make the identification of the males relatively easy. However, males without wing dark spots can be present, because spots start to appear within 10 hours following emergence when the temperature is high, but it takes full two days before the spots become obvious. The eggs are oval (0.2 mm wide), milky white colour, with two filaments (aeropyle or spiracle) at one end whose length ranges from 0.4 to 0.6 mm. The maggot-like larvae are white with visible internal organs and black mouthparts. They grow throughout three larval stages and when fully-grown they can reach 5.5 mm in length and 0.8 mm in width. Distinguishing stages of instars can be estimated by the size of larvae, colour of mouthpart, but it is most accurately judged by pre-respiratory ducts (Kanzawa, 1935; Walsh et al., 2011). The pupae are spindle-shaped, reddish brown in colour and they bear two stalks with small finger-like projections (3.5 mm in length and 1.2 mm wide). 

The distinguishing features of the two sexes (serrated ovipositor and black wing spots) are present in other 150 Drosophila species, thus making species identification difficult in areas where they are sympatric. An easy-to-use description of the combination of diagnostic characters that could be used for tentative identification of D. suzukii within the subgroup it belongs is given both by Hauser (2011) and Cini et al. (2012). Drosophila subpulchrella males’ black spots are very similar in shape and position to those of D. suzukii (Takamori et al., 2006). The possible lack of wing black spots in teneral specimens of D. suzukii could lead to misidentification with other closely related Drosophila species whose males do not present spots on the male wing: D. ashburneri, D. immacularis, D. lucipennis, D. mimetica, D. oshimai and D. unipectinata. Other characteristics may thus guide identification, such as the sex combs on the foretarsi; D. suzukii has one row of combs on the first and one row on the second tarsal segment while D. biarmipes has two combs on the first tarsomere. Similar problems arise with females. On the basis of the shape and length of the ovipositor, D. suzukii can be easily discriminated from related species, as for example D. biarmipes, but not easily from other species such as D. immigrans and D. subpulchrella (Takamori et al., 2006) which possess very similar ovipositors (Hauser, 2011; Atallah et al., 2014). In such cases, a final determination should rely on the relative size of spermatheca compared to ovipositor’s size: it is thus feasible only for the trained eyes of taxonomists (Hauser, 2011). The situation is complex also for immature stages (eggs, larvae and pupae), where no reliable morphological diagnostic features have been identified (Okada, 1968). The D. suzukii egg has two respiratory appendages but this character is not species-specific. Therefore, DNA barcoding is the only fully reliable identification (Freda and Braverman, 2013). Molecular identification is hence possible by amplification of the barcode COI gene with universal primers.

The EPPO diagnostic protocol on D. suzukii provides guidance on how to detect and identify the pest (EPPO, 2013).

Detection and inspection methods

The presence of adult flies in the field can be monitored by using traps baited with different attractants. Although field captures of D. suzukii in traps indicate its presence, trapping does not appear to provide good prediction of infestations in all crops. Any 250-750 mL plastic containers with closely fitting lids can be used as traps. Traps should have 0.5 – 1 mm diameter holes drilled on their sides to enable the flies to enter the trap. A variety of traps (i.e. prototypes made by researchers or traps sold by commercial companies) are available to monitor adult D. suzukii. Comparison among different trap design (size, colour, volatilization area, entry area) have been performed across different regions and crops (Lee et al., 2012; 2013; Renkema et al., 2014; Cha et al., 2018; Tonina et al., 2018). The number of captures increased with the size of the entry holes, but smaller holes slowed evaporation and increased selectivity (by preventing entry of larger insects). Red, yellow and black traps are preferable to clear or white, but there is an interaction between trap colour and crop type. Trap colour has no effect on the selectivity towards other drosophlids and traps integrating both visual and olfactory cues are better tools for monitoring D. suzukii (Lee et al., 2013; Kirkpatrick et al., 2017). Apple cider vinegar was one of the first baits used because of its efficacy and ease of use. This lure has been lately improved by adding wine (Landolt et al., 2012), or wine and sugar (Grassi et al. 2015; Rossi Stacconi et al., 2016). The fly response to the combination of vinegar and wine was greater than the response to acetic acid or the combination of acetic acid and ethanol, which are the principal volatile chemical components of vinegar and wine respectively (Landolt et al., 2012). This finding indicates that other volatiles emitted by vinegar and wine, in addition to acetic acid and ethanol, may also be attractive to male and female D. suzukii.  A sugar-yeast bait has been used successfully and was found to outperform apple cider vinegar (Knight et al., 2013). A small drop of dish soap added to the liquid bait as a surfactant, or the placement of a sticky card within the trap, results in more fly captures. In term of sensitivity, the most effective traps are also the ones that catch the pest earlier in the season. Multi-component volatile blends have been identified (Cha et al., 2012; 2013; 2014; 2017) and may provide more selective lures and reduce the time for trap servicing. Improvement of the attraction efficiency of the available lure together with optimization of the trap design are major objectives of different research teams dealing with chemical ecology in order to set up effective tools for pest control (Cloonan et al., 2018, Landolt et al. 2012; Cha et al., 2013; Larson et al., 2020). 


Adults of D. suzukii can fly over short distances with the influence of biotic and abiotic factors such as the availability of cultivated and wild host plants and optimal temperature and humidity conditions (Tait et al., 2020). In addition, D. suzukii, as a fruit-specialist species among drosophilid flies, can seasonally migrate between low and high altitudes in mountain regions, probably exploiting the seasonal air currents along the valleys with high altitudinal gradient. It is assumed that during summer, adults are moving away from resource-poor conditions prevailing at low altitudes to exploit better resources at high altitudes (Mitsui et al., 2010; Tait et al., 2018). 

Over long distances, it is considered that the main pathway for movement is the trade of potentially infested host fruit. Although, it has been observed that some flowers could also carry life stages of D. suzukii (see host plants section), cut flowers have been considered as presenting a very low risk (EPPO, 2011). The explosive dispersal worldwide of D. suzukii is partly due to the increasing global trade of fresh fruit and to the cryptic nature of larvae hidden inside the fruit, that are often undetected during and after transport (Cini et al., 2014). As a consequence, passive diffusion is likely the main cause of the spread of D. suzukii, as for many other invasive species (Westphal et al., 2008). Recent analyses indicate the presence of at most three D. suzukii genetic clusters in Europe, while North American populations are characterised by a larger genetic diversity (Adrion et al., 2014; Fraimout et al., 2017; Rota Stabelli et al., 2020). They have found that colonization events in the two continents were independent and demonstrated that reference American and European genomes lay in highly distant clusters. Invasion history shows that D. suzukii has a high dispersal ability and Calabria et al. (2012) could determine that D. suzukii was able to spread approximately 1400 km in one year, either actively through natural spread or passively through movements of infested fruits.


Economic impact

D. suzukii infestations generate direct and indirect economic impacts, through yield losses, shorter shelf life of infested fruits, extra labour and material costs for monitoring, field sanitation and post-harvest handling (especially in organic production) as well as the closure of international markets in front of fruits produced in infested areas (Goodhue et al., 2011; Lee et al., 2011; DiGiacomo et al., 2019). In Europe, a yield loss of 30-40% of blueberry, blackberry and raspberry fruits, was observed in Italy (in 2011) and up to 80% of yield loss occurred in strawberry production in France in 2010. In addition to the loss of production, the increased costs for D. suzukii management have generated important revenue losses (Farnsworth et al., 2017; Mazzi et al., 2017). This pest caused a loss of 3.3 million EUR, in 2011, in small fruits cultivation, in Trento province (Northern Italy) (De Ros et al., 2015) and a total loss of 511 million USD, in strawberries, blueberries, raspberries, blackberries, and cherries in California, Oregon, and Washington states (Walsh et al., 2011). These losses can be reduced or mitigated by the introduction of Integrated Pest Management (IPM) strategies, based on insecticides, mass trapping, exclusion netting and field sanitation, which were proven to reduce economic losses, from 13% to 7%, in soft fruits production in Trento Province (De Ros et al., 2015; Del Fava et al., 2017). 


Although various control approaches have been implemented to suppress D. suzukii populations and reduce crop damage (Haye et al., 2016), current programs still rely primarily on insecticides that target adult flies (Van Timmeren and Isaacs, 2013). Insecticides can be effective, but there is a restricted list of permitted active ingredients and increasing problems with fruit residues (Rodriguez-Saona et al., 2019). Insecticide applications may also negatively affect beneficial organisms, and lead to the development of resistance, which is of major concern over the longer term (Gress and Zalom, 2019). Therefore, given also the high polyphagy and mobility of the pest, only area-wide IPM strategies aimed at reducing population densities at the landscape level would be able to achieve sufficient levels of effectiveness. New IPM tools are hence under development including those based on semiochemicals (Cloonan et al., 2018; Alkema et al., 2019), cultural methods (Rendon and Walton, 2019), exclusion nets (Leach et al., 2016), sterile and/or incompatible insect techniques (Lanouette et al., 2017) possibly in combination with transgenic approaches (Ahmed et al., 2019). However, none of these methods alone or together has shown yet to significantly control D. suzukii populations on a large scale. In the light of these results, the method that seems most promising, suitable and durable over large areas is biological control. In this sense, many studies have been carried out and are at an advanced stage of application using both indigenous and non-indigenous arthropods, predators and microorganisms (Lee et al., 2019). Biological control in area-wide programs should be able to reduce pest populations in natural habitats, thereby reducing the number of flies that migrate into susceptible crops that, in turn, will improve the effectiveness of other control tools and lower damage (Rossi Stacconi et al., 2019).

Phytosanitary risk

D. suzukii was included in the EPPO A2 list of pests recommended for regulation as a quarantine pest in 2011. It has been declared a quarantine pest by New Zealand and Australia, and these countries have imposed restrictions on the importation of several cultivated fruit species from invaded areas. Even though successful eradication programs are not reported so far, due to the high reproductive capacity and dispersal abilities of this pest, early warning systems are vital in areas which are still free from D. suzukii, in case eradication is attempted.


In order to reduce the risk of introducing D. suzukii into new areas, countries have been advised to require that fruit are coming from areas that are free from the pest, or produced under specific conditions to prevent fruit infestations (e.g. by growing plants under a net or in screened greenhouses with trapping to verify pest absence). Fruit treatments may also be used (EPPO, 2011). For example, cold storage or cold treatments can reduce survival and increase development time of D. suzukii larvae infesting fruits (Aly et al., 2017; Saeed et al., 2020). In countries outside the EPPO region, fumigation or irradiation treatments have been recommended (Walse et al., 2012; DAFF, 2013; Follett et al., 2014).

REFERENCES 2021-06-22

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CABI resources used when preparing this datasheet

CABI (2020) Invasive Species Compendium. Datasheet on Drosophila suzukii (spotted wing drosophila). https://www.cabi.org/isc/datasheet/109283


This datasheet was prepared in 2020 by Gianfranco Anfora. His contribution is gratefully acknowledged.

How to cite this datasheet?

EPPO (2024) Drosophila suzukii. EPPO datasheets on pests recommended for regulation. https://gd.eppo.int (accessed 2024-07-21)