Appearance. Spotted Wing Drosophila. 2011). The spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. SWD are very similar in size, shape and appearance to other vinegar flies (i.e. Fall-bearing and late maturing varieties are at greater risk than early maturing ones. Control of spotted wing drosophila, Drosophila suzukii, by specific insecticides and by conventional and organic crop protection programs. Genus species: Drosophila suzukii Crops of concern: Raspberries, blackberries, and blueberries are at high risk of SWD infestation. There are lots of similar tiny flies here in New Zealand. Image: Frank A Hale, University of Tennessee. It made its way into New York by 2011. Our recent mild winter raised concerns about the potential for early season spotted wing drosophila (SWD) damage to berries, which were further increased when South Carolina strawberry growers observed infestation last month. Biology of the Spotted Wing Drosophila. Integrated pest management (IPM) for Spotted Wing Drosophila (SWD) control. Published 2013. Spotted Wing Drosophila cannot be controlled 100% and it is also best to use a combination of methods to achieve the maximum control possible. Drosophila species instead possess a more acute mechanism for phe-notypic shifts (Kimura, 2004). In August 2008, the first detection of the spotted wing drosophila, Drosophila suzukii, to the North America mainland in California caused great concern, as the fly was found infesting a variety of commercial fruits. The spotted wing Drosophila is highly aggressive, prolific, invasive, and can completely destroy late berry crops. Sugar (4 tbsp.) Evidence from other countries has shown that early detection and rapid response is crucial to minimising the impact of SWD on soft and stone fruit crops. Controlling Spotted Wing Drosophila ww.hlhltd.co.uk • information@hlhltd.co.uk • 01945 461177 With ripening grapes potentially at greater risk from Spotted Wing Drosophila (SWD) attack over coming weeks, Hutchinsons’ Rob Saunders and Chris Cooper answer some key questions about this relatively new pest and how to control it In the United States, D. suzukii was first detected in Hawaii in 1980 and then in California in 2008 and has now expanded its invaded range to much of the continental United States (Bolda et al. In Minnesota, SWD primarily attacks raspberries, blackberries (and other cane berries), blueberries, strawberries and wine grapes. cCurrent address: Biological and Environmental Sciences, University of Stirling, Stirling FK9 4LA, Scotland, United Kingdom dCorresponding author, e-mail: geraldinedryan@gmail.com Abstract The spotted-wing drosophila (Drosophila suzukii Matsumura) is an invasive species of Asian origin that is now widely distributed in North America and Europe. This is exactly where the fly can overwinter. Spotted Wing Drosophila (Drosophila suzukii)Introduction In 2008 Drosophila suzukii (Spotted wing drosophila) was detected in three European countries, Italy, France and Spain as well as in the United States (California). Spotted wing drosophila: potential economic impact of a newly established pest. our common “fruit flies”). However, by using an integrated pest management (IPM) approach, you can control this pest using organic techniques. June-bearing strawberries may escape injury, whereas late summer fruit on day-neutral varieties may suffer damage. This is an invasive pest that has been showing up on the East Coast the last few years. In efficacy rankings, Delegate® WG insecticide has performed well in the battle against spotted wing drosophila. Today, it has spread throughout most of the continental US. The spotted wing drosophila … Firstly, try avoid planting fruit trees and bushes next to a compost heap. Spotted Wing Drosophila lay their eggs under the skin of cherries. The spotted-wing drosophila, Drosophila suzukii Matsumura, is considered the main insect pest of small fruit in the world. Indeed, some estimates suggest as much as 80% of the variation in cold tolerance among D. melanogas-ter can be attributed to changes in phenotypic expression (Ayrinhac et al., 2004). Right: Spotted wing drosophila larva. This compliments reports from throughout the northeast that SWD is … Spotted Wing Drosophila: Potential Economic Impact of a Newly Established Pest Mark P. Bolda, Rachael E. Goodhue, and Frank G. Zalom While significant gaps and uncertainties exist in scientific knowledge regarding spotted wing drosphila, it has the potential to cause substantial economic damage, particularly for specific crops and I included a video actually showing the larvae crawling around in the raspberry. Spotted wing drosophila (SWD) is a member of the “small fruit fly” or “vinegar fly” genus Drosophila. Spotted wing drosophila and other Drosophila species do not appear to use pheromones as long range attractants, unlike some moths or beetles. Native to Asia, SWD is currently found in most of the primary fruit growing regions of the U.S. Drosophila or pomace flies are small insects commonly found in association with over-ripened or rotten fruits and vegetables. Drosophila suzukii (Spotted Wing) Description SWD is a small fly (2 to 3 mm) with bright red eyes, a pale brown thorax, and an abdomen with black horizontal stripes. For instance, adult Western cherry fruit flies, Rhagoletis indifferens, in another family of flies called Tephritids, are much longer at 3/16 inch than SWD adults and have a dark banding pattern on their wings. What you will learn about fruit trees and spotted wing drosophila in this show. Agricultural and Resource Economics, 13(3):5-8. We report for the first time D. suzukii infestations in African crops. Spotted Wing Drosophila (SWD): FAQs And Links. Live yeast (1 tbsp.) Its presence in the United Kingdom was first recorded in 2012. Spotted wing drosophila (Drosophila suzukii) is a fruit fly that originated in Asia and was first detected as an invasive species in the United States in Hawaii in 1980.It was discovered in the continental U.S. in California in 2008, but because it is so small and hard to detect, it could have been in North America far earlier. Identifying susceptible hosts is essential to develop management strategies. Damage is caused by the developing larvae, which feed within fruit causing it to rapidly often (Figure 1). The spotted wing drosophila, Drosophila suzukii Matsumura (Diptera: Drosophilidae), is an invasive pest native to Asia that has recently invaded Europe and the Americas. We have found spotted wing drosophila fruit flies in raspberry and highbush blueberry plantings in Maine over the past week, in most of the locations where we have set up traps. What is a spotted wing drosophila fruit fly trap? Brewer LJ, Walton V, Dreves A, Shearer P, Zalom F, Walsh D, 2011. Biology and management of spotted wing drosophila on small and stone fruits: year 1 reporting cycle. Drosophila suzukii (Matsumura), also known as spotted wing drosophila (SWD), is an invasive pest of soft-skinned fruits that originated from East Asia. Adult SWD are small, 1/16 to 1/8 in long (2‐3 mm) with red eyes and a light brown thorax and abdomen. The insect resembles common vinegar flies in the genus Drosophila. Monitoring for Spotted Wing Drosophilia (YouTube): This video demonstrates how to use red cup traps in fields for the monitor of the spotted winged drosophila, how to identify males and females, and how to monitor berries for larvae using the “salt extraction method.” Spotted Wing Drosophila Traps (PDF); Supplies. Spotted wing drosophila (SWD) is a vinegar (fruit) fly that was first reported in Britain in 2012. “Spotted wing drosophila have small, white legless larvae with no apparent head, and damaged fruit often feels soft and leaks juice,” Hamby says. common name: spotted-wing drosophila scientific name: Drosophila suzukii (Matsumura) (Insecta: Diptera: Drosophilidae) Introduction - Distribution - Description - Life Cycle - Hosts - Damage - Management - Selected References Introduction (Back to Top). 2010, Walsh et al. By John P. Roche, Ph.D. We have now observed infestation in strawberries, blueberries, and blackberries collected from our research locations in North Carolina. One generation, from egg to adult, may occur in … Left: Spotted wing drosophila in ablueberry. “We see good to … cVA is a male-specific attractant, but spotted wing drosophila does not produce cVA although they may have retained the ability to detect it. A single fly quickly moves from berry to berry, infesting many in a short time span. Look closely by comparing anatomical features of the maggots and wing patterns of adult flies. Spotted wing drosophila (SWD) is a highly invasive fruit fly that has spread to many Minnesota counties since being first reported in 2012. Unlike most other vinegar flies it can damage otherwise unblemished soft and stone fruit including strawberries, raspberries, blackberries, currants, blueberries, grapes, cherries and plums. Image: Matteo Maspero and Andrea Tantardini – Centro MiRT Fondazione Minoprio. However, the adult males differ from other native Drosophila males in that they possess a dark spot along the This fly lays its eggs in soft fruits like raspberries, grapes, blueberries, and strawberries. 3:00 Susan introduces SWD and explains why these flies are a problem in orchards growing sour cherries, raspberries, plums and other fruit. Small fruits, notably late bearing raspberries and strawberries, are at particular risk of damage. 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. In my last post I introduced the spotted wing drosophila fruit fly and how damaging it is. Spotted-wing drosophila (SWD) 2 is an insect only recently found in Colorado that has proven to be very damaging to several kinds of fruit crops. 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). Some people call them 'vinegar' flies because they tend to feed on rotting fruit. Some Drosophila species use a chemical called 11- cis -vaccenyl acetate (cVA) as a short-range attractant. 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