<![CDATA[Image RSS Feed for Image Collection 96029 - spotted wing drosophila (Drosophila suzukii) in EDDMapS Representative Photos - Selected Images only]]> http://www.ipmimages.org/collections/viewcollection.cfm?id=96029 Origin

Drosophila suzukii is an invasive and economically important pest of many soft-skinned fruits such as blueberries, blackberries, raspberries, strawberries, cherries, and other fruits. The SWD flies have brownish-yellow thorax, black stripes across the abdomen, and distinct red eyes. Males have dark spots on the wingtips and black combs on the forelegs. Female SWD lack the spots and black combs, but have a very large serrated ovipositor. The adult female punctures the skin of intact fruit using its serrated ovipositor and deposit white eggs just under the fruit skin. Two spiracles which are attached to the egg extend out of the fruit through the hole, also known as a sting. Eggs hatch after 1-3 days and the larvae (maggots) continue to feed in the fruit.

Spread

Since its first detection in California in 2008, SWD spread rapidly across the United States. It was first found in Georgia in 2010 and since then SWD has been reportedly detected in many counties across the State. However, a statewide survey is underway to confirm reports and develop a SWD distribution map in the State of Georgia.

Ecological Threat

D. suzukii was first found in Georgia in 2010 and since then this small vinegar fly has impacted the $255 million Georgia blueberry industry with crop losses of up to 20% annually.

Adults

Adult males may not develop the characteristic spot on the wingtips until 10 hours after eclosing, and reproductive maturity will typically be reached after 1-2 days. Mature females are extremely productive, laying 1-3 eggs per oviposition site, in 7-16 sites per day, for 10-59 days. One female can produces 300-600 eggs within a lifetime.

Larvae

While in the fruit, the larvae develop through three instars. The respiratory ducts and mouth of the larvae develop with each instar. The third instar (Figure 3) has large hook-like mouthparts and branching anterior spiracles which protrude through its larval exterior. After 5-7 days, the third instar exits the fruit to pupate. The puparium is initially bright white, but it browns as it ages. The fly remains in its puparium for 3-15 days until the adult emerges.

Control

Measures to control Spotted Wing Drosophila are available, but methods are constantly being refined as new research and information becomes available, so keep informed through your local County Agents, and through our UGA Blueberry Blog. Currently there is no economic threshold for SWD, and the benefits of the treatment significantly outweigh the costs. We are therefore recommending a conservative approach, if SWD is detected at your or at your neighbor’s farm, then control measures must be implemented. SWD control involves cultural control methods and/or chemical control methods.

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Fri, 29 Mar 2024 06:15:17 -0400 Fri, 29 Mar 2024 06:15:17 -0400 http://Images.bugwood.org/ <![CDATA[<p>Found on blackberry</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5520229 spotted-wing drosophila Drosophila suzukii]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5520229 Found on blackberry

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<![CDATA[<p>spotted wing drosophila (<em>Drosophila suzukii</em>) trap(s)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444191 spotted-wing drosophila Drosophila suzukii]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444191 spotted wing drosophila (Drosophila suzukii) trap(s)

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<![CDATA[<p>spotted wing drosophila (<em>Drosophila suzukii</em>) larva(e) on blueberry (<em>Vaccinium spp.</em>)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444363 spotted-wing drosophila Drosophila suzukii]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444363 spotted wing drosophila (Drosophila suzukii) larva(e) on blueberry (Vaccinium spp.)

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<![CDATA[<p>Host: Raspberry</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444186 spotted-wing drosophila Drosophila suzukii]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444186 Host: Raspberry

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<![CDATA[<p>Fragaria x ananassa var. Albion</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444195 spotted-wing drosophila Drosophila suzukii]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444195 Fragaria x ananassa var. Albion

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<![CDATA[<p>Host: Raspberry</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444193 spotted-wing drosophila Drosophila suzukii]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444193 Host: Raspberry

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<![CDATA[<p>spotted wing drosophila (<em>Drosophila suzukii</em>) adult(s)</p>]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444162 spotted-wing drosophila Drosophila suzukii]]> http://www.ipmimages.org/browse/detail.cfm?imgnum=5444162 spotted wing drosophila (Drosophila suzukii) adult(s)

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