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1 December 2016 Drosophila suzukii (Diptera: Drosophilidae) Arrives at Minas Gerais State, a Main Strawberry Production Region in Brazil
Felipe Andreazza, Khalid Haddi, Eugenio E. Oliveira, João Alfredo M. Ferreira
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Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) was first collected in Minas Gerais State, Brazil, in Mar 2016, in the municipality of Ervália, from an organic strawberry field. In Brazil, this pest was first recorded in the southernmost region, in Rio Grande do Sul and Santa Catarina states. Drosophila suzukii's arrival to Minas Gerais State, about 1,500 km north from its first record, should alarm the growers, the research community, and the authorities, because this region is the main strawberry production region in Brazil and is now susceptible to large increases in production losses caused by this invasive species. The lack of alternative effective management tools for D. suzukii, besides traditional chemical sprays, makes this pest an important area of study. Future research should focus on finding strategies that match with different local growing systems and edaphoclimatic conditions.

The spotted wing drosophila, Drosophila suzukii (Matsumura) (Diptera: Drosophilidae), has recently invaded many countries and harmed soft-skinned fruit production worldwide (Dreves et al. 2009; Walsh et al. 2011; Burrack et al. 2013; Cini et al. 2014). In Brazil, D. suzukii was first recorded by Deprá et al. (2014) in a drosophilid diversity survey carried out in the southern regions of Brazil in 2013. In these regions, many of the preferred hosts are cultivated, but this pest has been found infesting not only the traditional hosts such as strawberry (Fragaria ananassa Duch; Rosaceae) (Santos 2014) but also native fruits, such as Cattley guava (Psidium cattleyanum Sabine; Myrtaceae) and Surinam cherry (Eugenia uniflora L.; Myrtaceae) (Andreazza et al. 2015). Previously, however, heavy damages and economic losses have been reported only in strawberry production in the state of Rio Grande do Sul (Santos 2014).

Fig. 1.

Drosophila suzukii adult female collected at Minas Gerais State, Brazil. (A) Female on a strawberry fruit in the field, scale bar = 3 mm; (B) D. suzukii egg laid inside the fruit (white box), scale bar = 5 mm; (C) oviposition hole (white circle) with the egg's spiracles (black arrow) coming out. The egg laid beneath the fruit epidermis is delimited by a white ellipse, scale bar = 500 µm; (D) the female from image A viewed under microscope, scale bar = 500 µm; and (E) the female characteristic, serrated ovipositor, scale bar = 200 µm.


Minas Gerais is the biggest strawberry producer in Brazil, with around 1,700 ha in cultivation (IBGE 2014). As in Rio Grande do Sul, where D. suzukii was first observed causing economic losses in strawberry production (Santos 2014), arrival of this fly in Minas Gerais may cause enormous impact and affect both local growers and the main markets. Drosophila suzukii has spread throughout the Brazilian territory since its discovery in the states of São Paulo (Vilela & Mori 2014), Rio de Janeiro (Bitner-Mathé et al. 2014), and Goiás (Paula et al. 2014). Following reports from producers of high rates of unmarketable flaccid-like strawberries, the authors visited strawberry fields during Mar 2016 and surveyed for this pest.

In an organic production field located in the municipality of Ervália (20.8423083°S, 42.6756277°W), Minas Gerais, drosophilid adults were seen flying around both damaged and ripe, undamaged strawberries. Flies were collected using a handheld aspirator. Seven drosophilid flies were collected from damaged fruits and 1 fly was collected from undamaged fruit (Fig. 1A). One D. suzukii male was also seen (Fig. 2), but we failed to collect it. Undamaged fruit was collected to evaluate for the presence of D. suzukii eggs.

In the same field, 53 strawberry fruits presenting advanced flaccid-like symptoms (damaged) were collected, placed inside a plastic container (1.5 L) with vented openings, and returned to the laboratory in a Styrofoam cooler. Additionally, a guava tree (Psidium guajava L.; Myrtaceae) adjacent to the strawberry field showed symptoms of infestations by several pests, and 1 guava fruit was collected and returned to the laboratory.

Flies were examined under a stereomicroscope (at 40×) (SZX-SDO2, Olympus Corporation, Tokyo, Japan). The strawberry and guava fruits were separately placed on a vermiculite layer inside 2 plastic cages containing venting openings sealed with voile cloth. Cages were checked daily, and the emerged flies were examined under the stereomicroscope and species determined using Vlach (2013); characters used in diagnostics, such as ovipositor (Fig. 1E) and wing pattern (Fig. 2) are illustrated.

One of the 7 flies collected from damaged fruit and 1 fly collected from the undamaged fruit were identified as females of D. suzukii (Fig. 1D). Furthermore, one D. suzukii egg was found inside the field-collected undamaged strawberry (Fig. 1B and C), and an adult D. suzukii male emerged 10 d later. From the damaged strawberry fruits, 32 D. suzukii adults (18 females and 14 males) emerged. As expected, other species of opportunistic secondary pests emerged from the fruits, primarily Zaprionus indianus Gupta (Diptera: Drosophilidae) (94 specimens), also seen in the field (Fig. 2), which is widely distributed in Brazil and Central and North America regions (Joshi et al. 2014; Van Timmeren & Isaacs 2014; Andreazza et al. 2015; Bernardi et al. 2015; Lasa & Tadeo 2015). From the guava fruit, 28 Z. indianus and 3 D. suzukii adults (2 females and 1 male) emerged, confirming that this native fruit is a suitable host (Andreazza et al. 2015).

The authors highlight here the importance of documenting D. suzukii in Minas Gerais, because this region is the main producer of strawberries in Brazil (IBGE 2014; Silveira & Guimarães 2014). Considering the potential of this species to infest other native hosts, additional work should be done to document the geographic and host range in Minas Gerais. As most management strategies for this pest are based on synthetic insecticides (Van Timmeren & Isaacs 2013), it is particularly important to develop and implement control strategies that are compatible with fruit production in this region and that can be a part of integrated pest management systems.

We thank the CAPES Foundation, the National Council of Scientific and Technological Development (CNPq), the Minas Gerais State Foundation for Research Aid (FAPEMIG), and the Arthur Bernardes Foundation (FUNARBE) for grants provided to this work.

Fig. 2.

Damaged strawberry in the field with drosophilid flies including a Drosophila suzukii male (inlet) with its characteristic wing black dots (arrows) and 2 adults of Zaprionus indianus (white circles), scale bar = 5 mm.


References Cited


Andreazza F, Bernardi D, Botton M, Nava DE. 2015. Índice de infestação natural de Drosophila suzukii e Zaprionus indianus (Diptera: Drosophilidae) em frutíferas nativas no município de Pelotas, 4p. In XXIV Congresso de Iniciação Científica e XVII Encontro da Pós-Graduação, Pelotas. Anais. Universidade Federal de Pelotas, Pelotas, Brazil. Google Scholar


Bernardi D, Andreazza F, Nava DE, Baronio CA, Botton M. 2015. Duplo Ataque. Cultivar HF 95: 16–19. Google Scholar


Bitner-Mathé BC, Victorino J, Faria FS. 2014. Drosophila suzukii has been found in tropical Atlantic rainforest in southeastern Brazil. Drosophila Information Service 97: 136–137. Google Scholar


Burrack HJ, Fernandez GE, Spivey T, Kraus DA. 2013. Variation in selection and utilization of host crops in the field and laboratory by Drosophila suzukii Matsumara (Diptera: Drosophilidae), an invasive frugivore. Pest Management Science 69: 1173–1180. Google Scholar


Cini A, Anfora G, Escudero-Colomar LA, Grassi A, Santosuosso U, Seljak G, Papini A. 2014. Tracking the invasion of the alien fruit pest Drosophila suzukii in Europe. Journal of Pest Science 87: 559–566. Google Scholar


Deprá M, Poppe JL, Schmitz HJ, De Toni DC, Valente VLS. 2014. The first records of the invasive pest Drosophila suzukii in the South American continent. Journal of Pest Science 87: 379–383. Google Scholar


Dreves AJ, Walton V, Fisher G. 2009. A new pest attacking healthy ripening fruit in Oregon. Spotted wing drosophila: Drosophila suzukii (Matsumura). Oregon State University, Extension Service EM 8991. Google Scholar


IBGE (Instituto Brasileiro de Geografia e Estatistica). 2014. Censo Agropecuário, (last accessed 6 Apr 2016). Google Scholar


Joshi NK, Biddinger DJ, Demchak K, Deppen A. 2014. First report of Zaprionus indianus (Diptera: Drosophilidae) in commercial fruits and vegetables in Pennsylvania. Journal of Insect Science 14: 259–263. Google Scholar


Lasa R, Tadeo E. 2015. Invasive drosophilid pests Drosophila suzukii and Zaprionus indianus (Diptera: Drosophilidae) in Veracruz, Mexico. Florida Entomologist 98: 987–988. Google Scholar


Paula MA, Lopes PHS, Tidon R. 2014. First record of Drosophila suzukii in the Brazilian savanna. Drosophila Information Service 97: 113–115. Google Scholar


Santos RSS. 2014. Ocorrência de Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae) atacando frutos de morango no Brasil. Embrapa Uva e Vinho, Bento Gonçalves, Brazil. (Comunicado Técnico 159). Google Scholar


Silveira GRS, Guimarães BC. 2014. Aspectos sociais e econômicos da cultura do morangueiro. Informe Agropecuário 35: 7–10. Google Scholar


Van Timmeren S, Isaacs R. 2013. Control of spotted wing drosophila, Drosophila suzukii, by specific insecticides and by conventional and organic crop protection systems. Crop Protection 54: 126–133. Google Scholar


Van Timmeren S, Isaacs R. 2014. Drosophila suzukii in Michigan vineyards, and the first report of Zaprionus indianus from this region. Journal of Applied Entomology 138: 519–527. Google Scholar


Vilela RC, Mori L. 2014. The invasive spotted wing drosophila (Diptera: Drosophilidae) has been found in the city of São Paulo (Brazil). Revista Brasileira de Entomologia 58: 371–375. Google Scholar


Vlach J. 2013. Identifying Drosophila suzukii , (last accessed 30 Mar 2016). Google Scholar


Walsh DB, Bolda MP, Goodhue RE, Dreves AJ, Lee JC, Bruckd J, Walton VM, O'Neal SD, Zalom FG. 2011. Drosophila suzukii (Diptera: Drosophilidae): invasive pest of ripening soft fruit expanding its geographic range and damage potential. Journal of Integrated Pest Management 2: 1–7. Google Scholar
Felipe Andreazza, Khalid Haddi, Eugenio E. Oliveira, and João Alfredo M. Ferreira "Drosophila suzukii (Diptera: Drosophilidae) Arrives at Minas Gerais State, a Main Strawberry Production Region in Brazil," Florida Entomologist 99(4), 796-798, (1 December 2016).
Published: 1 December 2016
crop protection
first record
invasive pest
praga invasiva
primeiro relato
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