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. The adults have a pale brown or yellowish-brown thorax with black bands on the abdomen. Strik B (2005) Growing Kiwifruit. The female even has a special egg-laying organ that is serrated like a saw, so she can lay her eggs inside ripening fruit. A Pacific Northwest Extension Publication, PNW 507. The lifespan of D. suzukii varies greatly between generations; from a few weeks to ten months. 2011) and organic raspberries (Farnsworth et al. 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. There are black stripes down its abdomen. 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. 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. [3], D. suzukii is a fruit crop pest and is a serious economic threat to soft summer fruit; i.e., cherries, blueberries, raspberries, blackberries, peaches, nectarines, apricots, grapes, and others. [17] In Fall 2010 the fly was also discovered in Michigan[18] and Wisconsin. Some of these could easily be confused with Drosophila suzukiidue to their spotted wings. (Enterobacteriaceae). We are slowly learning to live with it in Wisconsin since its first detection in 2010. Spotted-wing drosophila is a small fly that develops within many kinds of fruits. Generally, soft-skinned fruit become vulnerable to attack as they begin to soften and tur… Oregon State University Since D. suzukii is more active in the morning and evening those are the best times to control it. In Minnesota, SWD primarily attacks raspberries, blackberries (and other cane berries), blueberries, strawberries and wine grapes. For questions or feedback about our college or website, please Contact Us. Economic impacts are significant; losses from large scale infestation (20% loss) across the US alone could equate to farm gate impacts > $500M. [27], Farmers have the option of both conventional and organic sprays [28] to control D. suzukii. Look for fruit flies hovering around fruit and symptoms of premature fruit decay. Introduction. In captivity in Japan, research shows up to 13 generations of D. suzukii may hatch per season. For pest description, crop damage, biology, life history, sampling and cultural management. 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. 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. acetamiprid-In field tests, this product has provided inconsistent control of SWD. 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. acetamiprid-In field tests, this product has provided inconsistent control of SWD. 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. 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. 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. Spotted Wing Drosophila, Drosophila suzukii (Matsumura) a new fruit pest of concern especially for strawberry, blackberry and blueberry growers. The Alachua Grower (online) Profaizer D, Angeli G, Trainotti D, Marchel L, Zadra E, Sofia M, Ioriatti C, 2012. [3] By the 1980s, the "fruit fly" with the spotted wings was seen in Hawaii. Spotted wing drosophila is native to Southeast Asia, preferring temperatures of 20-30 °C. The traps should be checked once a week and farmers should look for the spot on the wing of the males to determine if D. suzukii is present. 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. Biology Spotted wing drosophila (SWD), Drosophila suzukii (Matsumura), is an exotic pest of Asian origin. [10], Native to southeast Asia, D. suzukii was first described in 1931 by Matsumura. [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. The spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. “Spotted wing drosophila is by far the fastest spreading pest I’ve ever seen,” Beers said. “Spotted wing drosophila have small, white legless larvae with no apparent head, and damaged fruit often feels soft and leaks juice,” Hamby says. [21] As D. suzukii continues to spread, most of the states will most likely observe it. The adults and larvae closely resemble the common vinegar … suzukii. In 2015 it is estimated that national economic loss for producers in the United States was $700 million. Disseminating the most current scientific knowledge of Spotted Wing Drosophila fruit fly biology, management, and effects on Pacific Northwest berry crops. 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. 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 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. Spotted wing Drosophila (SWD), Drosophila suzukii, is an invasive vinegar fly native to Southeast Asia. including Drosophila melanogaster. While it is not possible to distinguish SWD larvae from those of other common vinegar flies, the presence of larvae in intact fruit … Bolda, M. P., Goodhue, R. E. & Zalom, F. G. Spotted wing drosophila: potential economic impact of a newly established pest. It is a fruit-killing machine. 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. I have had some reports of poor control. Spotted wing drosophila (SWD), Drosophila suzukii(Matsumura), is an exotic pest of Asian origin. 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. “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. Spotted wing drosophila (SWD) is a vinegar (fruit) fly that was first reported in Britain in 2012. [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. There are black stripes down its abdomen. OMRI-listed for organic use. The telltale spots on the wings of male D. suzukii have earned it the common name "spotted wing drosophila" (SWD). The female has a long, sharp, serrated ovipositor. (Accessed November 2009). Spotted wing drosophila (SWD) is a fruit fly that's on the move. The traps used were all of the clear “deli cup” design. A field study was conducted in 2013 to evaluate various baits for monitoring spotted wing drosophila. Spotted wing drosophilas are a global pest. Spotted wing drosophila (SWD) is a vinegar (fruit) fly that was first reported in Britain in 2012. Oregon State University, University of Idaho and Washington State University. If you fail to do so, you could face a $400 fine. 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