Spotted Wing Drosophila lay their eggs under the skin of cherries. There are lots of similar tiny flies here in New Zealand. Some people call them 'vinegar' flies because they tend to feed on rotting fruit. Identifying susceptible hosts is essential to develop management strategies. Left: Spotted wing drosophila in ablueberry. 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. 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). Biology of the Spotted Wing Drosophila. Spotted wing drosophila: potential economic impact of a newly established pest. Spotted wing drosophila (SWD) is a vinegar (fruit) fly that was first reported in Britain in 2012. Some Drosophila species use a chemical called 11- cis -vaccenyl acetate (cVA) as a short-range attractant. Right: Spotted wing drosophila larva. 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. Biology and management of spotted wing drosophila on small and stone fruits: year 1 reporting cycle. Integrated pest management (IPM) for Spotted Wing Drosophila (SWD) control. 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. We have now observed infestation in strawberries, blueberries, and blackberries collected from our research locations in North Carolina. The spotted wing Drosophila (SWD) is a vinegar or fruit fly of East Asian origin. Adult SWD are small, 1/16 to 1/8 in long (2‐3 mm) with red eyes and a light brown thorax and abdomen. However, the adult males differ from other native Drosophila males in that they possess a dark spot along the The spotted wing drosophila … Look closely by comparing anatomical features of the maggots and wing patterns of adult flies. A single fly quickly moves from berry to berry, infesting many in a short time span. 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 efficacy rankings, Delegate® WG insecticide has performed well in the battle against spotted wing drosophila. The spotted wing Drosophila is highly aggressive, prolific, invasive, and can completely destroy late berry crops. Spotted-wing drosophila, Drosophila suzukii Matsumura (Diptera: 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. Image: Matteo Maspero and Andrea Tantardini – Centro MiRT Fondazione Minoprio. I included a video actually showing the larvae crawling around in the raspberry. We report for the first time D. suzukii infestations in African crops. Native to Asia, SWD is currently found in most of the primary fruit growing regions of the U.S. 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. This is exactly where the fly can overwinter. 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). cVA is a male-specific attractant, but spotted wing drosophila does not produce cVA although they may have retained the ability to detect it. Invasion biology of spotted wing Drosophila ( Drosophila suzukii ): a global perspective and future priorities . This fly lays its eggs in soft fruits like raspberries, grapes, blueberries, and strawberries. 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. Agricultural and Resource Economics, 13(3):5-8. 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 One generation, from egg to adult, may occur in … SWD are very similar in size, shape and appearance to other vinegar flies (i.e. What is a spotted wing drosophila fruit fly trap? 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 suzukii (Matsumura), also known as spotted wing drosophila (SWD), is an invasive pest of soft-skinned fruits that originated from East Asia. Genus species: Drosophila suzukii Crops of concern: Raspberries, blackberries, and blueberries are at high risk of SWD infestation. This is an invasive pest that has been showing up on the East Coast the last few years. Live yeast (1 tbsp.) This pest can seriously compromise fruit production in infested crops and has a remarkable ability to invade new areas with a diverse range of environments. Drosophila flies are sometimes incorrectly called 'fruit flies'. Drosophila species instead possess a more acute mechanism for phe-notypic shifts (Kimura, 2004). About spotted wing drosophila. “Spotted wing drosophila have small, white legless larvae with no apparent head, and damaged fruit often feels soft and leaks juice,” Hamby says. Spotted wing drosophila (SWD) is a member of the “small fruit fly” or “vinegar fly” genus 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). 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. 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. Unlike most other vinegar flies it can damage otherwise unblemished soft and stone fruit including strawberries, raspberries, blackberries, currants, blueberries, grapes, cherries and plums. What you will learn about fruit trees and spotted wing drosophila in this show. By John P. Roche, Ph.D. 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. Fall-bearing and late maturing varieties are at greater risk than early maturing ones. Firstly, try avoid planting fruit trees and bushes next to a compost heap. Sugar (4 tbsp.) Brewer LJ, Walton V, Dreves A, Shearer P, Zalom F, Walsh D, 2011. The insect resembles common vinegar flies in the genus Drosophila. Control of spotted wing drosophila, Drosophila suzukii, by specific insecticides and by conventional and organic crop protection programs. This compliments reports from throughout the northeast that SWD is … 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 Today, it has spread throughout most of the continental US. Spotted Wing Drosophila (SWD): FAQs And Links. The spotted-wing drosophila, Drosophila suzukii Matsumura, is considered the main insect pest of small fruit in the world. Appearance. Spotted wing drosophila may be mistaken for other adult flies and maggots. Small fruits, notably late bearing raspberries and strawberries, are at particular risk of damage. You'll find them around rotting fruit or your compost heap. June-bearing strawberries may escape injury, whereas late summer fruit on day-neutral varieties may suffer damage. In Minnesota, SWD primarily attacks raspberries, blackberries (and other cane berries), blueberries, strawberries and wine grapes. 2011). 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). Spotted wing drosophila and other Drosophila species do not appear to use pheromones as long range attractants, unlike some moths or beetles. Its presence in the United Kingdom was first recorded in 2012. Spotted Wing Drosophila. It made its way into New York by 2011. 2010, Walsh et al. 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. In my last post I introduced the spotted wing drosophila fruit fly and how damaging it is. our common “fruit flies”). “We see good to … The Spotted Wing Drosophila (SWD) is a vinegar fly of East Asian origin that can cause damage to many fruit crops. 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. 3:00 Susan introduces SWD and explains why these flies are a problem in orchards growing sour cherries, raspberries, plums and other fruit. Image: Frank A Hale, University of Tennessee. However, by using an integrated pest management (IPM) approach, you can control this pest using organic techniques. Drosophila or pomace flies are small insects commonly found in association with over-ripened or rotten fruits and vegetables. 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