Spotted wing drosophila (SWD), Drosophila suzukii, is an insect pest of economically valuable small fruit and tree fruit crops. Spotted wing drosophila (SWD) continues to be one of the biggest issues blackberry growers in Arkansas face each year. Wing of an adult male spotted-wing drosophila, Drosophilia suzukii (Matsumura). Because the flies are only a few millimeters long and cannot fly very far, natural dispersion between states is unlikely. Growers must protect susceptible crops. 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. The Spotted Wing Drosophila (SWD) is a vinegar fly of East Asian origin that can cause damage to many fruit crops. EMERGING PEST: Spotted Wing Drosophila-A Berry and Stone Fruit 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. In Minnesota, SWD primarily attacks raspberries, blackberries (and other cane berries), blueberries, strawberries and wine grapes. Michigan spotted wing Drosophila update – July 28, 2020, Michigan spotted wing Drosophila update – July 21, 2020, Michigan spotted wing Drosophila update – July 14, 2020, Michigan spotted wing Drosophila update – July 7, 2020, Michigan spotted wing Drosophila update – June 30, 2020, Michigan spotted wing Drosophila update – June 23, 2020, Michigan spotted wing Drosophila update – July 30, 2019, Michigan spotted wing Drosophila update – July 24, 2019, Michigan spotted wing Drosophila update – July 16, 2019, Michigan spotted wing Drosophila update – July 9, 2019, Michigan spotted wing Drosophila update – July 5, 2019, Michigan spotted wing Drosophila update – June 26, 2019, New guide to organic management of spotted wing Drosophila released, Al pensar en un plan de manejo de la drosófila de ala manchada, utilice un enfoque de manejo de enfermedades, Watch the 2017 Spotted Wing Drosophila Summit presentations online, Michigan Department of Agriculture and Rural Development, Read about the Pesticide Safety & Education Program. It made its way into New York by 2011. Spotted wing drosophila (SWD), Drosophila suzukii, is an insect pest of economically valuable small fruit and tree fruit crops.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. However, by using an integrated pest management (IPM) approach, you can control this pest using organic techniques. 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. The Spotted Wing Drosophila (SWD) is a vinegar fly of East Asian origin that can cause damage to many fruit crops. Published on June 26, 2019 The spotted wing Drosophila is highly aggressive, prolific, invasive, and can completely destroy late berry crops. MSU is an affirmative-action, equal-opportunity employer. Spotted wing Drosophila populations are active and growers should be protecting susceptible crops. OMRI-listed for organic use. 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. Management-chemical control: HOME USE. Spotted Wing Drosophila Larvae in Blueberry; photo by David Handley. Spotted wing Drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly native to Southeast Asia. We expect populations to increase in the coming weeks as more food (fruit) becomes available for the flies, especially if conditions remain warm and humid. Drosophila suzukiiadults are small (3–4 mm) yellowish-brown flies with red eyes. It became established in Hawaii during the 1980’s, and was first discovered in the continental United States in California in 2008. Spotted Wing Drosophila, Drosophila suzukii, is a small fly that can cause significant damage to a number of fruit crops in Wisconsin, including: raspberries, blackberries, grapes, cherries, blueberries, and others.This exotic pest is related to vinegar flies (commonly called “fruit flies” when found around the house).SWD is native to parts of eastern Asia and was found In California in 2008. SWD presence was confirmed by identifying … The spotted wing drosophila is a relatively new invasive species in Maine. 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. The flies can be found throughout Maine, but … kaolin clay (Surround at Home)-Repels some insect pests when applied as a spray to leaves, stems, and fruit. SWD quickly spread throughout the Pacific Northwest and Canada, and was found in Florida in 2009. 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. Published on July 28, 2020 Drosophila suzukii, commonly called the spotted wing drosophila or SWD, is a fruit fly. Spotted wing drosophila populations are likely to build rapidly in the coming weeks as more food (fruit) becomes available for the flies, especially if conditions remain warm and we get some rain. In fall 2010, SWD was detected in Michigan for the first time as part of a widespread Early Detection and Rapid Response program. Expect to begin protecting susceptible crops. The flies have a preference for softer-fleshed fruit. The activities of the SWD Response Team are funded by Project GREEEN, the Michigan Department of Agriculture and Rural Development, US-EPA, USDA and Michigan grower organizations. This is a central location for information on this invasive pest, including links to regional resources from Wisconsin and Minnesota. Published on July 14, 2020 Welcome to our web resources on spotted wing Drosophila (SWD). Warm weather is here and SWD populations are rising. Published on July 31, 2019 Issued in furtherance of MSU Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture. Spotted wing drosophila is a small vinegar fly from East Asia that lays its eggs in softer, thin-skinned fruits, such as berries. 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). Spotted wing drosophila can only be definitively identified in the adult stage; however, many people have encountered the larvae inside harvested, ripe fruit. The adults have a pale brown or yellowish-brown thorax with black bands on the abdomen. Therefore, expert examination by a specialist is needed for positive identification and confirmation (Steck et al. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. Michigan State University Extension programs and materials are open to all without regard to race, color, national origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status or veteran status. SWD populations are active and growers should be protecting susceptible crops. The Spotted Wing Drosophila (SWD) is a vinegar fly of East Asian origin that can cause damage to many fruit crops. Spotted wing drosophila (SWD), Drosophila suzukii, is an insect pest of economically valuable small fruit and tree fruit crops. 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. Some of these could easily be confused with Drosophila suzukiidue to their spotted wings. With warmer weather, more spotted wing Drosophila were trapped this week; protect susceptible crops. Crushing the fruit does not hamper SWD emergence. Spotted-wing drosophila (SWD; Drosophila suzukii; Family: Drosophilidae) is a key pest that targets a wide variety of susceptible fruits including tree stone fruits (e.g., cherries) and berries (e.g., strawberries, blueberries, raspberries and blackberries). The activity period typically spans from early to mid-June through late fall. Spotted wing Drosophila populations have begun to surge. Adult male spotted wing drosophila have a single dark spot near the tip of each wing and two dark combs (may look like bands) on each of the front legs. 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. Berry growers should set out traps to monitor SWD populations in their fields. Many species of fruit flies are present in late summer; most normally infest overripe, fallen, decaying fruit, so are not crop-limiting pests. Published on July 9, 2019 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. With warmer weather, spotted wing Drosophila (SWD) populations are beginning to climb. Spotted wing drosophila (SWD) is a member of the “small fruit fly” or “vinegar fly” genus Drosophila. Human-assisted transportation is a more likely cause of the recent rapid spread. Spotted wing drosophila (SWD), Drosophila suzukii, is a fruit fly first found in 2008 damaging fruit in many California counties.It infests ripening cherries throughout the state and ripening raspberry, blackberry, blueberry, and strawberry crops, especially in coastal areas. The antennae are short and stubby … The spotted wing Drosophila is highly aggressive, prolific, invasive, and can completely destroy late berry crops. Published on July 7, 2020 Spotted wing Drosophila populations are surging. It became established in Hawaii during the 1980’s, and was first discovered in the continental United States in California in 2008. Head of an adult spotted-wing drosophila, Drosophilia suzukii (Matsumura), frontal view. SWD is widespread throughout all the important production regions in the U.S., Europe and South America and originates from Asia. “We see good to excellent control with Delegate,” Hamby says. Berry growers should set out traps to monitor SWD populations in their fields. Keep flies from feeding on or hatching from old fruit. The spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. Drosophila suzukii, commonly called the spotted wing drosophila or SWD, is a fruit fly.D. MSU is an affirmative-action, equal-opportunity employer, committed to achieving excellence through a diverse workforce and inclusive culture that encourages all people to reach their full potential. Spotted wing drosophila (SWD) is a vinegar fly that lays eggs in fruit as it ripens, so its larvae may infest fruit at harvest. It was first spotted in the state in 2011, Dill said. 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. It can directly infest the fruit of many plants, but is most attracted to raspberries, blackberries, … Spotted-wing drosophila is a small fly that develops within many kinds of fruits. Adults: Florida is home to at least 27 addiional Drosophila spp. 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. Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. College of Agricultural Sciences Adults are 0.08 to 0.12 inch (2–3 mm) flies with red eyes and a pale brown thorax and abdomen with black stripes on the abdomen. It can directly infest the fruit of many plants, but is most attracted to raspberries, blackberries, … Native to Asia, SWD is currently found in most of the primary fruit growing regions of the U.S. 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. Growers must protect susceptible crops. Check back for updates. SWD can emerge from fruit in compost piles, and its development may accelerate in warm … 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 … Oregon State University Published on June 23, 2020 It looks very much like other fruit flies, but unlike most fruit flies, which attack rotting or over-ripe fruit, SWD attacks healthy, undamaged fruit. Spotted wing Drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly native to Southeast Asia. This information is for educational purposes only. See our fact sheets for English and Spanish information on monitoring for this pest, and recommendations for managing SWD. Search for past reports and articles at MSU Extension’s Fruit & Nuts News. Protect susceptible crops. In efficacy rankings, Delegate® WG insecticide has performed well in the battle against spotted wing drosophila. Published on July 21, 2020 The most distinguishable trait of the adult is that the males have a black spot towards the tip of each wing. A SWD Response Team has been formed that combines the expertise of MSU entomologists, horticulturalists, Extension educators, and Michigan Department of Agriculture staff. Growers should monitor for this pest, correctly identify it, and take steps to minimize its populations through all available means. Spotted wing drosophila (SWD) is a vinegar (fruit) fly that was first reported in Britain in 2012. SWD has been detected in traps located near berry crops, grapes, cherries and other tree fruits. Hot weather is here and SWD populations are rising; growers should begin protecting susceptible crops. 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. including Drosophila melanogaster. Published on July 16, 2019 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. “Spotted wing drosophila have small, white legless larvae with no apparent head, and damaged fruit often feels soft and leaks juice,” Hamby says. Corvallis, Oregon 97331. Published on July 24, 2019 Spotted Wing Drosophila Larvae in Blueberry; photo by David Handley. This is not the case with SWD. 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). The spotted wing Drosophila (SWD), Drosophila suzukii (Matsumura) is a pest of soft fruit native to Asia, but was found in California starting in 2008, and in Washington and Oregon in 2009. Spotted wing drosophila female feeding on water droplet (E. Beers, December 2010) The spotted wing drosophila is an invasive pest from Asia, first discovered in California in 2008. SWD flies have now been detected in all of the counties where it has been monitored in the southern peninsula of Michigan, and we expect it to be present statewide. Unlike most other vinegar flies it can damage otherwise unblemished soft and stone fruit including strawberries, raspberries, blackberries, currants, blueberries, grapes, cherries and plums. Spotted wing Drosophila numbers are higher than ever recorded at this time of year in Michigan; take action to protect susceptible fruit. However, by using an integrated pest management (IPM) approach, you can control this pest using organic techniques. Adult flies are smaller than 4mm, colored light brown with red eyes. 2019 Cool wet spring brought another slow start to spotted wing Drosophila, but now that warm weather is here, expect to begin protecting susceptible crops. acetamiprid-In field tests, this product has provided inconsistent control of SWD. SWD and other fruit fly species will multiply in cull fruit, so remove and destroy it, or bury it at least 2 feet deep. The spotted-wing drosophila can be distinguished from the western cherry fruit fly, Rhagoletis indifferens, by comparing anatomical features of the maggots and wing patterns of adult flies. The spotted-wing drosophila, however, readily attacks undamaged fruit. Disseminating the most current scientific knowledge of Spotted Wing Drosophila fruit fly biology, management, and effects on Pacific Northwest berry crops. The Spotted Wing Drosophila (SWD) is a vinegar fly of East Asian origin that can cause damage to many fruit crops. A regional research and extension grant through the North Central IPM Center has also supported this website through a grant with the University of Wisconsin and University of Minnesota. It appears that this insect has become widely established through North America. Published on July 8, 2019 Growers and researchers are working together to implement effective pest control strategies. Fruit flies (also called vinegar flies) are often associated with damaged, overripe, or rotting fruits and vegetables. BibliographyIn separate publication Distribution and Mapping Resources for Spotted Wing Drosophila Page provides links to scouting results and a predictive phenology model based on growing degree-days. It is particularly damaging to late fruiting plantings of raspberries, blackberries, and strawberries. This website will be the central location for dissemination of information about this insect. 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