After 1 or 2 days, the area around the "sting" softens and depresses creating an increasingly visible blemish. When first observed in a new region, D. suzukii has often been confused with the western cherry fruit fly (Rhagoletis indifferens) and was given the short-lasting name cherry vinegar fly. In Minnesota, SWD primarily attacks raspberries, blackberries (and other cane berries), blueberries, strawberries and wine grapes. The adults are small (2-3 mm) flies with red eyes and a pale brown thorax and abdomen with black stripes on the abdomen, see Figure 1. Spotted wing drosophila (SWD) is a fruit fly that's on the move. Spotted wing drosophila is native to Southeast Asia, preferring temperatures of 20-30 °C. Western cherry fruit fly adults are much larger (5 mm) than the spotted-wing drosophila adults and have a dark banding pattern on their wings. EMERGING PEST: Spotted Wing Drosophila-A Berry and Stone Fruit Pest. Spotted Wing Drosophila (Drosophila suzukii), SWD, is a recently introduced new species of fruit fly in the United States.It was first found on the west coast in 2008, but has rapidly colonized many fruit producing regions of the country. SWD quickly spread throughout the Pacific Northwest and Canada, and was found in Florida in 2009. The intestinal bacterial communities of adult and larval D. suzukii collected in its invasive range (USA), were found to be simple and mostly dominated by Tatumella spp. Spotted Wing Drosophila: What we learned in 2014 and outlook into the 2015 field season . The adult males have a single black spot on the tip of each wing, but the females lack this distinctive marking, making it difficult to identify this insect. There are black stripes down its abdomen. Spotted Wing Drosophila (SWD) is an invasive species of fruit fly that lays its eggs in thin-skinned fruits, such as blueberries, strawberries, raspberries and blackberries. The economic impact of D. suzukii on fruit crops is negative and significantly affects a wide variety of summer fruit in the United States including cherries, blueberries, grapes, nectarines, pears, plums, pluots, peaches, raspberries, and strawberries. The telltale spots on the wings of male D. suzukii have earned it the common name "spotted wing drosophila" (SWD). A Pacific Northwest Extension Publication, PNW 507. [4] The depressions may also exude fluid which may attract infection by secondary bacterial and fungal pathogens. [3] By the 1980s, the "fruit fly" with the spotted wings was seen in Hawaii. The now infamous Spotted Wing Drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly from Eastern Asia that can cause significant damage to soft-fleshed fruit. Since the spotted wing Drosophila (SWD), Drosophila suzukii, was first found in Michigan in 2010, it has become a serious pest of commercially-grown raspberries, blueberries, cherries and other fruit crops, resulting in the loss of well over 25 million dollars.This insect can also be a troublesome pest in home fruit plantings, especially for people who wish to keep pesticide use to minimal levels. Disseminating the most current scientific knowledge of Spotted Wing Drosophila fruit fly biology, management, and effects on Pacific Northwest berry crops. Some of these could easily be confused with Drosophila suzukiidue to their spotted wings. Drosophila suzukii Matsumura (spotted wing drosophila) has recently become a serious pest of a wide variety of fruit crops in the United States as well as in Europe, leading to substantial yearly crop losses. That makes the SWD a menace to a wide variety … Since the spotted wing Drosophila (SWD), Drosophila suzukii, was first found in Michigan in 2010, it has become a serious pest of commercially-grown raspberries, blueberries, cherries and other fruit crops, resulting in the loss of well over 25 million dollars. [19] The fly was first discovered in the northeastern states in 2011[20] and in Minnesota in 2012. Photo by John Davis. The flies are most prevalent in the lower, shaded parts of the plants. [5], Like other members of the Drosophilidae, D. suzukii is small, approximately 2 to 3.5 millimetres (5⁄64 to 9⁄64 in) in length and 5 to 6.5 millimetres (13⁄64 to 1⁄4 in) in wingspan [3] and looks like its fruit and vinegar fly relatives. Drosophila suzukiiadults are small (3–4 mm) yellowish-brown flies with red eyes. Strik B (2005) Growing Kiwifruit. The female has a long, sharp, serrated ovipositor. acetamiprid-In field tests, this product has provided inconsistent control of SWD. The spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. Drosophila suzukii, like all insects, is host to a variety of microorganisms. Spotted wing drosophila adults can be blown by wind to nearby locations or transported to new regions via infested fruit. We are slowly learning to live with it in Wisconsin since its first detection in 2010. The spotted wing drosophila is an invasive pest from Asia, first discovered in California in 2008. This USDA National Institute of Food and Agriculture - Specialty Crop Research Initiative funded project represents a coordinated, comprehensive, region-wide investigation into the biology and management of Spotted Wing Drosophila on small and stone fruit for industry and non-commercial producers in Oregon, Washington, and California. Spotted wing drosophila (SWD) is a vinegar (fruit) fly that was first reported in Britain in 2012. Spotted wing drosophila continue to plague raspberry, blackberry, blueberry, and grape growers. Drosophila suzukii, commonly called the spotted wing drosophila or SWD, is a fruit fly. Genus species: Drosophila suzukii Growers: Talk to your local CCE agent about monitoring SWD. It was discovered in western Washington, Oregon and British Columbia in 2009, and in eastern Washington in June of 2010. The larvae grow inside the fruit. What makes the SWD different is that the female has an enlarged, serrated ovipositor (egg layer) that enables her to lay eggs under the skin of ripening fruits that are otherwise free of damage. “Spotted wing drosophila is by far the fastest spreading pest I’ve ever seen,” Beers said. In Washington state, D. suzukii has been observed in association with two exotic and well-established species of blackberry, Rubus armeniacus (= Rubus discolor) and Rubus laciniatus (the Himalayan and Evergreen Blackberries, respectively.). The invasive fruit fly spotted-wing drosophila (Drosophila suzukii) causes extensive damage to cherry and berry crops, and effective monitoring is vital to control efforts.A new study in Michigan found that spotted-wing drosophila consistently prefer red, glue-covered monitoring traps made of rectangles of plastic or spheres of plastic compared to the most commonly used clear deli … [43] Yeasts also form an important part of the Drosophila microbiome, with a mutualistic relationships to yeast being described in other Drosophila species. The spotted wing drosophila (Drosophila suzukii) is a fruit fly which originated in Japan and has spread across the world, first to the USA, then mainland Europe, before first being detected in the United Kingdom in 2012 at NIAB EMR in Kent. [47] Although certain fungal pathogens have been shown to experimentally infect D. suzukii,[48][49][50] the wild fungal infections of D. suzukii remain to be explored comprehensively. insidiosus. The adults have a pale brown or yellowish-brown thorax with black bands on the abdomen. Adult flies are smaller than 4mm, colored light brown with red eyes. It is particularly damaging to late fruiting plantings of raspberries, blackberries, and strawberries. It can directly infest the fruit of many plants, but is most attracted to raspberries, blackberries, blueberries, and other late-season, soft-flesh fruits — cultivated and wild. The spotted wing drosophila will attack thin-skinned fruit such as raspberry, blackberry, blueberry, strawberry, cherry, plum, peach, nectarine, and sometimes grape. In 2015 it is estimated that national economic loss for producers in the United States was $700 million. Spotted wing drosophila. As the end of summer is approaching and fall bearing raspberry are getting ready for harvest, it is important to review the management strategies that should be implemented to manage the infamous spotted-wing drosophila (SWD; Figure 1). 2009). Although monitoring traps are used for early D. suzukii adult detection to time the start … Detections were made for the first time in Utah and Michigan in late summer/fall of 2010. Spotted wing drosophila. Spotted wing drosophila (SWD), Drosophila suzukii, is an insect pest of economically valuable small fruit and tree fruit crops. And unlike other fruit flies that target mostly rotting or fermenting fruit, SWD targets fruit right on the tree, laying their eggs in the young fruit and eventually turning it into a wormy mess. The pest has also been found in Europe, including the countries of Belgium, Italy, France, and Spain.[22][23]. [3] Research shows that many of the males and most of the females of the late-hatching generations overwinter in captivity—some living as long as 300 days. Economic losses have now been reported across North America and in Europe as the fly has spread to new areas. Spotted wing drosophilas are a global pest. D. suzukii, originally from southeast Asia, is becoming a major pest species in America and Europe, because it infests fruit early during the ripening stage, in contrast with other Drosophila species that infest only rotting fruit. The antennae are short and stubby … It made its way into New York by 2011. It attacks a range of soft skinned fruit and reduces crop yield and quality through direct feeding damage and secondary infection of the fruit. If you are not getting the level of control you expect, here are a … Introduction. With as many as 13 generations per season, and the ability for the female to lay up to 300 eggs each, the potential population size of D. suzukii is huge. “We see good to excellent control with Delegate,” Hamby says. Fruit flies (also called vinegar flies) are often associated with damaged, overripe, or rotting fruits and vegetables. A female may lay as many as 300 eggs during its lifespan. “Females” means that they are vinegar flies without spots on the wings and assumed to be spotted wing drosophila (SWD), while males were readily identifiable with spots on the wings. The adults and larvae closely resemble the common vinegar … Since D. suzukii is more active in the morning and evening those are the best times to control it. It first appeared in North America in central California in August 2008,[4] then the Pacific Northwest in 2009,[11] and is now widespread throughout California's coastal counties,[12] western Oregon, western Washington,[4] and parts of British Columbia[13] and Florida. [24] Future losses may decrease as growers learn how to better control the pest, or may keep increasing as the fly continues to spread. Traps that use apple cider vinegar with a whole wheat dough bait have been successful for farmers to both capture and monitor D. Observed in Japan as early as 1916 by T. Kanzawa,[3] it was widely observed throughout parts of Japan, Korea, and China by the early 1930s. One way to manage D. suzukii is to remove the infested fruit and place it in a plastic bag in the garbage. Spotted Wing Drosophila (Drosophila suzukii), SWD, is a recently introduced new species of fruit fly in the United States.It was first found on the west coast in 2008, but has rapidly colonized many fruit producing regions of the country. Today, it has spread throughout most of the continental US. acetamiprid-In field tests, this product has provided inconsistent control of SWD. Farmers can also harvest their soft fruit early which reduces the exposure of fruit to D. suzukii and the likelihood of damage. Spotted wing drosophila (SWD) is a fruit fly that's on the move. Drosophila suzukii, commonly called the spotted wing drosophila or SWD, is a fruit fly. The fly called spotted wing drosophila (SWD, Drosophila suzukii) is emerging as a global plant pest of significance. Integrated pest management (IPM) programs for the spotted-wing drosophila Drosophila suzukii (Diptera: Drosophilidae) rely on insecticide applications to reduce adult populations and prevent fruit infestation. Native to Asia, SWD is currently found in most of the primary fruit growing regions of the U.S. Spotted wing drosophila is a small vinegar fly from East Asia that lays its eggs in softer, thin-skinned fruits, such as berries. Our national team of biologists and social scientist has assembled with the goal of developing sustainable strategies to manage spotted wing drosophila (Drosophila suzukii), an invasive fly native to eastern Asia that damages soft skinned fruit crops, rendering them unmarketable. kluyveri. To enable basic and applied research of this important pest, we sequenced the D. suzukii ge … The Spotted Wing Drosophila (SWD) is a vinegar fly of East Asian origin that can cause damage to many fruit crops. The most distinguishable trait of the adult is that the males have a black spot near the tip of each wing. “Spotted wing drosophila have small, white legless larvae with no apparent head, and damaged fruit often feels soft and leaks juice,” Hamby says. Male Drosophila suzukii, note the dark spots near his wing tips, Female Drosophila suzukii, her wings are without spots, Electron microscope image of an ovipositor of a female Drosophila suzukii, Cherry with oviposition scars of Drosophila suzukii, Kanzawa, T. 1939 Report. This summer the SWD was captured … The spotted wing drosophila is most likely to get to New Zealand in fruit infested with eggs or maggots. The oviposition site is visible in many fruit by a small pore scar in the skin of the fruit often called a "sting". Spotted wing drosophila (SWD), Drosophila suzukii, is an insect pest of economically valuable small fruit and tree fruit crops. In efficacy rankings, Delegate® WG insecticide has performed well in the battle against spotted wing drosophila. Wasps native to the Northwest aren’t much of a threat to SWD. Adult SWD are small, 1/16 to 1/8 in long (2‐3 mm) with red eyes and a light brown thorax and abdomen. Unlike its vinegar fly relatives which are primarily attracted to rotting or fermented fruit, female D. suzukii attack fresh, ripe fruit by using their saw-like ovipositor to lay eggs under the fruit's soft skin. To prevent resistance to certain sprays, farmers must rotate among different insecticides. Spotted Wing Drosophila. Spotted wing Drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly native to Southeast Asia. It was first identified in British Columbia in 2009. A spotted wing drosophila are able to lay its eggs in healthy fruit that is still ripening, as opposed to other vinegar flies that only attack rotting fruit. 2011) and organic raspberries (Farnsworth et al. Spotted wing drosophila (SWD), Drosophila suzukii, is a fruit fly first found in 2008 damaging fruit in many California counties. This is not the case with SWD. Unlike most other vinegar flies it can damage otherwise unblemished soft and stone fruit including strawberries, raspberries, blackberries, currants, blueberries, grapes, cherries and plums. [12] The $500 million actual loss due to pest damage in 2008—the first year D. suzukii was observed in California—is an indication of the potential damage the pest can cause upon introduction to a new location. There are black stripes down its abdomen. suzukii. [26], In areas where D. suzukii has already been established or where its activity has been monitored, there are different ways to control it. Biological control of the Spotted wing Drosophila - Drosophila suzukii. 2009, http://extension.oregonstate.edu/news/story.php?S_No=729&storyType=news, http://www.ipm.ucdavis.edu/EXOTIC/drosophila.html, "Stop The Invasion - Spotted Wing Drosophila", http://www.agf.gov.bc.ca/cropprot/swd.htm, http://ncsmallfruitsipm.blogspot.com/p/spotted-wing-drosophila.html, http://extension.usu.edu/files/publications/publication/ENT-140-10.pdf, "Spotted Wing Drosophila IPM Working Group", "Spotted Wing Drosophila | Minnesota Department of Agriculture", http://www.eppo.org/QUARANTINE/Alert_List/insects/drosophila_suzukii.htm, "USDA Awards $6.7 Million To Stifle Spotted Wing Drosophila", "Spotted wing drosophila in home gardens", "Spotted Wing Drosophila Management Guidelines--UC IPM", "New guide to organic management of spotted wing Drosophila released", "Spotted Wing Drosophila Management | Entomology", "ASIAN GIANT HORNET STAKEHOLDER UPDATE #17 – DECEMBER 9, 2020", Washington State Department of Agriculture, "Catching hope: Possible ally in fight against harmful fruit fly discovered in Asian giant hornet trap", "Associations of Yeasts with Spotted-Wing Drosophila (Drosophila suzukii; Diptera: Drosophilidae) in Cherries and Raspberries", "Preliminary Screening of Potential Control Products against, Oregon State University horticulture site, Michigan State University Spotted Wing Drosophila site, Species Profile - Spotted Wing Drosophila (, United States National Agricultural Library, "EMERGING PEST: Spotted-Wing Drosophila-A Berry and Stone Fruit Pest". including Drosophila melanogaster. Many species of fruit flies are present in late summer; most normally infest overripe, fallen, decaying fruit, so are not crop-limiting pests. kaolin clay (Surround at Home)-Repels some insect pests when applied as a spray to leaves, stems, and fruit. This small insect has been in Hawaii since the 1980s, was detected in California in 2008, spread through the West Coast in 2009, and was detected in Florida, Utah, the Carolinas, Wisconsin and Michigan for the first time in 2010. [21] As D. suzukii continues to spread, most of the states will most likely observe it. [27], Farmers have the option of both conventional and organic sprays [28] to control D. suzukii. (Enterobacteriaceae). First detected in California in 2008, it has currently been detected in at least 41 states in the United States, and into Canada, Mexico, and many European countries. Known in Oregon and the Pacific Northwest since about 2009, this species now appears to be established in many fruit growing regions around the country. [4] Research investigating the specific threat D. suzukii poses to these fruit is ongoing. See: EMERGING PEST: Spotted Wing Drosophila-A Berry and Stone Fruit Pest. Oregon State University [25] Farmers are advised to place these traps in a shaded area as soon as the first fruit is set and to not remove them until the end of harvest. Spotted wing Drosophila-related yield loss estimates have been applied to raspberry production estimates to quantify the value of these losses in California for nonorganic (Goodhue et al. The traps used were all of the clear “deli cup” design. The spotted wing drosophila is an invasive fly that first arrived in the United States in 2008, Lahiri says, eventually making its way nationwide … Biology Spotted wing drosophila (SWD), Drosophila suzukii (Matsumura), is an exotic pest of Asian origin. Spotted Wing Drosophila A new invasive pest of Michigan fruit crops Rufus Isaacs and Noel Hahn, Department of Entomology Bob Tritten and Carlos Garcia, MSU Extension MSU Extension Bulletin E-3140 New • October 2010 Introduction The Spotted Wing Drosophila (SWD) is a small vinegar fly with the potential to damage many fruit crops. Economic impacts are significant; losses from large scale infestation (20% loss) across the US alone could equate to farm gate impacts > $500M. "Quantifying Host Potentials: Indexing Postharvest Fresh Fruits for Spotted Wing Drosophila, "Integrating Circadian Activity and Gene Expression Profiles to Predict Chronotoxicity of, "Substrate Vibrations During Courtship in Three, "High Hemocyte Load is Associated with Increased Resistance Against Parasitoids in, https://en.wikipedia.org/w/index.php?title=Drosophila_suzukii&oldid=998411981, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 January 2021, at 07:28. They were detected in California in 2008, in Oregon and Washington the following year, in New England in … There are a number of reasons that control of any insect may be poor. It became established in Hawaii during the 1980’s, and was first discovered in the continental United States in California in 2008. Adults emerge from overwintering when temperatures reach approximately 10 °C (50 °F) (and 268 degree days). It was first detected in the North Central region of the US in Michigan in 2010, and has spread rapidly. The spotted wing drosophila (SWD) is a fruit fly orginally from Asia, was found in Hawaii in the 1980s, in California in 2008, in Michigan in 2010 and in Maine in 2012. Damage was first noticed in North America in the western states of California, Oregon, and Washington in 2008; yield loss estimates from that year vary widely, with negligible loss in some areas to 80% loss in others depending on location and crop. In choice test bioassays, a synthetic lure containing the EAG-active blend in mineral oil attracted ~3 times more spotted wing drosophila than control (mineral oil alone) lures. Females will oviposit on many fruits and in regions of scarce fruit, many females will oviposit on the same fruit. Due to the impact of D. suzukii on soft fruits, farmers have started to monitor and control it. Most types of sprays need to be applied each week, at a minimum. [29] Sprays should be in place prior to egg laying and the coverage needs to be thorough because adults often hide in dense portion of the canopy. Spotted wing drosophila (SWD) is a member of the “small fruit fly” or “vinegar fly” genus Drosophila. Introduction; Recognizing fruit damage; For more information; Introduction. While it is not possible to distinguish SWD larvae from those of other common vinegar flies, the presence of larvae in intact fruit … Many species of fruit flies are present in late summer; most normally infest overripe, fallen, decaying fruit, so are not crop-limiting pests. Spotted wing drosophila (SWD), Drosophila suzukii(Matsumura), is an exotic pest of Asian origin. The lifespan of D. suzukii varies greatly between generations; from a few weeks to ten months. The larvae hatch and grow in the fruit, destroying the fruit's commercial value. If adult SWD are present on your farm, manage them aggressively. Spotted wing drosophila is a temperate fruit fly, native to Southeast Asia; preferring temperatures of 20-30 o C. It is known to infest thin-skinned fruit. Its body is yellow to brown with darker bands on the abdomen and it has red eyes. In captivity in Japan, research shows up to 13 generations of D. suzukii may hatch per season. It has been confirmed in neighbouring regions such as southern Ontario in 2010, Minnesota in 2012 and North Dakota in 2013. The spotted wing Drosophila (SWD) is NOT that kind of fruit fly. Adult … Spotted wing drosophila is a temperate fruit fly, native to Southeast Asia; preferring temperatures of 20-30 o C. It is known to infest thin-skinned fruit. Animal and Plant Health Inspection Service, North American Plant Protection Organization, Walsh, D. Press Release, Washington State University. Spotted Wing Drosophila, Drosophila suzukii (Matsumura) a new fruit pest of concern especially for strawberry, blackberry and blueberry growers. Larvae are small, legless, up to 1/8 inch long, cream colored and … [4] The fertilized female searches for ripe fruit, lands on the fruit, inserts its serrated ovipositor to pierce the skin and deposits a clutch of 1 to 3 eggs per insertion. The male has a distinct dark spot near the tip of each wing; females do not have the spotted wing. A spotted wing drosophila are able to lay its eggs in healthy fruit that is still ripening, as opposed to other vinegar flies that only attack rotting fruit. Bolda, M. P., Goodhue, R. E. & Zalom, F. G. Spotted wing drosophila: potential economic impact of a newly established pest. Genus species: Drosophila suzukii Simple traps can be made to monitor for this very important pest — research on SWD traps and baits has shown that the commercially available traps and lures by Scentry and Trece work as effectively as the home-made whole wheat dough trap. Spotted-wing drosophila, however, attacks undamaged fruit prior to harvest. A novel control strategy could be in store for spotted wing drosophila, an invasive vinegar fly species from Asia that attacks more than 100 fruit crops, including blueberry, cherry, blackberry, and grape. 2017) using USDA production data. Oregon State University, University of Idaho and Washington State University. Drosophila (/ d r ə ˈ s ɒ f ɪ l ə, d r ɒ-, d r oʊ-/) is a genus of flies, belonging to the family Drosophilidae, whose members are often called "small fruit flies" or (less frequently) pomace flies, vinegar flies, or wine flies, a reference to the characteristic of many species to linger around overripe or rotting fruit. Growers and researchers are working together to implement effective pest control strategies. For questions or feedback about our college or website, please Contact Us. The foreleg of the male sports dark bands on the first and second tarsi. It became established in Hawaii during the 1980’s, and was first discovered in the continental United States in California in 2008. Translated from Japanese by Shinji Kawaii. The female even has a special egg-laying organ that is serrated like a saw, so she can lay her eggs inside ripening fruit. This method is effective from removing D. suzukii from gardens and small areas but is difficult for farmers with larger operations to do this. And unlike other fruit flies that target mostly rotting or fermenting fruit, SWD targets fruit right on the tree, laying their eggs in the young fruit and eventually turning it into a wormy mess. Depending on the variety of soft fruit and laws in different states and countries, there are many types of organic and conventional sprays that are effective. First detected in California in 2008, it has currently been detected in at least 41 states in the United States, and into Canada, Mexico, and many European countries. A field study was conducted in 2013 to evaluate various baits for monitoring spotted wing drosophila. Spotted Wing Drosophila. Attacks a range of soft skinned fruit species; Egg deposition and larval feeding can occur in maturing, firm fruit; Small (2-3 mm in length) flies with yellow-brown colouring, dark bands on the abdomens and red eyes; Start protective sprays on any berries that have begun to ripen, when more than four spotted wing drosophila flies are caught in a trap, or any larvae are noticed in the fruit. Spotted wing Drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly native to Southeast Asia. [8][9], D. suzukii has a slow rate of evolution due to its lower number of generations per year, because it enters winter diapause. SWD are very similar in size, shape and appearance to other vinegar flies (i.e. There are different types of traps, both commercial and home-made, that are effective in monitoring it. [17] In Fall 2010 the fly was also discovered in Michigan[18] and Wisconsin. Unlike most other vinegar flies it can damage otherwise unblemished soft and stone fruit including strawberries, raspberries, blackberries, currants, blueberries, grapes, cherries and plums. [3] Generations hatched early in the year have shorter lifespans than generations hatched after September. Two- to three-millimeters long, the spotted wing drosophila fly first drew attention in 2008 in California. Drosophila suzukii. Berry growers should set out traps to monitor SWD populations in their fields. Spotted-wing drosophila is a small fly that develops within many kinds of fruits. The spotted wing drosophila (SWD) is a fruit fly that is a 1/16 to 1/8 inch long with red eyes and a yellow-brown thorax and abdomen. D. suzukii, originally from southeast Asia, is becoming a major pest species in America and Europe, because it infests fruit early during the ripening stage, in contrast with other Drosophila species that infest only rotting fruit. Aggressive management entails: 1. Management-chemical control: HOME USE. The spotted wing drosophila (SWD), Drosophila suzukii, is a small fruit fly (vinegar fly) native to Japan.It was first discovered in the western United States in 2008 and has quickly moved through the Pacific Northwest into other parts of the US and northward into Canada. Therefore, expert examination by a specialist is needed for positive identification and confirmation (Steck et al. OMRI-listed for organic use. [12] Larvae may leave the fruit, or remain inside it, to pupate. It is now widespread in Coastal and Interior fruit growing areas of B.C. . In other temperate climates, the spotted wing drosophila overwinters as an adult in protected areas, … Growers and researchers are working together to implement effective pest control strategies. The Alachua Grower (online) Profaizer D, Angeli G, Trainotti D, Marchel L, Zadra E, Sofia M, Ioriatti C, 2012. Drosophila suzukii Matsumura (Diptera: Drosophilidae), a fruit fly from East Asia, is now a serious economic pest of soft fruits and berries across Europe, the Americas and North Africa. Spotted wing drosophila is a small vinegar fly from East Asia that lays its eggs in softer, thin-skinned fruits, such as berries. The adult males have a single black spot on the tip of each wing, but the females lack this distinctive marking, making it difficult to identify this insect. [14] During the summer of 2010 the fly was discovered for the first time in South Carolina, North Carolina,[15] Louisiana,[16] and Utah.
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