{"id":4787,"date":"2022-05-10T07:05:57","date_gmt":"2022-05-10T11:05:57","guid":{"rendered":"https:\/\/blog.uvm.edu\/cwcallah\/?p=4787"},"modified":"2023-02-08T14:49:29","modified_gmt":"2023-02-08T18:49:29","slug":"exclusion-netting-for-spotted-wing-drosophila-swd","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/cwcallah\/2022\/05\/10\/exclusion-netting-for-spotted-wing-drosophila-swd\/","title":{"rendered":"Exclusion Netting for Spotted Wing Drosophila (SWD)"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright size-large is-resized\"><a href=\"http:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/SWD-Scientia-Article-Dale-Ila-Riggs.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs-724x1024.jpg\" alt=\"\" class=\"wp-image-5242\" width=\"162\" height=\"229\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs-724x1024.jpg 724w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs-212x300.jpg 212w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs-768x1086.jpg 768w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs-1086x1536.jpg 1086w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs-1448x2048.jpg 1448w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs-1568x2217.jpg 1568w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/Pages-from-SWD-Scientia-Article-Dale-Ila-Riggs.jpg 1811w\" sizes=\"auto, (max-width: 162px) 100vw, 162px\" \/><\/a><figcaption class=\"wp-element-caption\">Read a summary of this work in Scientia.<\/figcaption><\/figure>\n<\/div>\n\n\n<p>If you grow berry crops you&#8217;ve most likely heard of spotted wing drosophila (SWD, <em>Drosophila suzukii<\/em>). This invasive pest has caused significant crop losses in the region since at least 2011. While there are chemical pesticides with varied efficacy, one practice that we&#8217;ve focused on is physical exclusion with netting. <a rel=\"noreferrer noopener\" href=\"https:\/\/projects.sare.org\/project-reports\/fne14-813\/\" target=\"_blank\">Pioneered in the region<\/a> by Dale Ila Riggs at <a rel=\"noreferrer noopener\" href=\"https:\/\/www.theberrypatch.net\/\" target=\"_blank\">The Berry Patch<\/a> and <a rel=\"noreferrer noopener\" href=\"https:\/\/www.berryprotectionsolutions.com\/\" target=\"_blank\">Berry Protection Solutions<\/a> in Stephentown, NY, exclusion netting structures and systems <a rel=\"noreferrer noopener\" href=\"https:\/\/projects.sare.org\/project-reports\/fne20-963\/\" target=\"_blank\">have been very effective<\/a> against SWD when implemented well. A <a href=\"http:\/\/blog.uvm.edu\/cwcallah\/files\/2023\/01\/SWD-Scientia-Article-Dale-Ila-Riggs.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">summary article from Scientia<\/a> is also available.<\/p>\n\n\n\n<!--more-->\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide6.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide6-1024x576.jpg\" alt=\"\" class=\"wp-image-4795\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide6-1024x576.jpg 1024w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide6-300x169.jpg 300w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide6-768x432.jpg 768w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide6.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7-1024x576.jpg\" alt=\"\" class=\"wp-image-4796\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7-1024x576.jpg 1024w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7-300x169.jpg 300w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7-768x432.jpg 768w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Netting<\/h2>\n\n\n\n<p>Crop damage is cause by adult females laying eggs in ripe fruit. These adult females have an approximately 1.0 mm diameter torso and are 2.0 mm long. Based on our experience, the netting should have <strong>openings less than 1.0 mm in at least one direction<\/strong>. A sampling of currently (2022) available netting and screen that meets this requirement follows:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>TekKnit ExcludeNet 85 gr (R2503ED) &#8211; polyethylene netting &#8211; 0.60 x 1.05 mm openings<\/li>\n\n\n\n<li>ProtekNet 70 gr &#8211; polyethylene netting &#8211; 0.85 x 1.4 mm openings<\/li>\n\n\n\n<li>ProtekNet 56 gr &#8211; polypropylene netting &#8211; 0.25 x 0.73 mm openings<\/li>\n\n\n\n<li>ProtekNet 25 gr &#8211; polyamid netting &#8211; 0.35 x 0.35 mm openings<\/li>\n\n\n\n<li>ProtekNet 17 gr &#8211; polyamide netting &#8211; 0.85 x 0.85 mm openings<\/li>\n\n\n\n<li>Saint-Gobain \/ Adfors &#8211; fiberglass small insect window screen &#8211; 0.94 x 0.94 mm openings<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide4.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide4-1024x576.jpg\" alt=\"\" class=\"wp-image-4797\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide4-1024x576.jpg 1024w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide4-300x169.jpg 300w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide4-768x432.jpg 768w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide4.jpg 1280w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Details about ExcludeNet 80 gr (left) and 85 gr (right) used in the recent trials.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Structure<\/h2>\n\n\n\n<p>Lots of different approaches have been successfully used to support the netting, prevent uplift failure in wind storms, and keep the netting off of plants.  Some growers have used 1&#8243; electrical conduit (&#8220;electrical metal tubing&#8221; or EMT).  Some growers have simply draped the netting on the bushes for small plantings. <\/p>\n\n\n\n<p>Our research has explored an approach known as a &#8220;cable garden&#8221; or &#8220;post and wire trellis.&#8221; Over the past three years we have tried different approaches and have worked with <a rel=\"noreferrer noopener\" href=\"https:\/\/gintec.ca\/\" target=\"_blank\">GinTech Shade Technologies<\/a> (structure design and materials) and <a rel=\"noreferrer noopener\" href=\"http:\/\/tekknit.com\/\" target=\"_blank\">TekKnit Industries<\/a> (netting manufacturer) to refine the design and work to reduce costs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Costs<\/h2>\n\n\n\n<p>A netting system comes with mainly one-time, fixed installation costs that should provide crop protection and reduce recurring spraying costs (and associated labor). <\/p>\n\n\n\n<p>Our research demonstrations using cable garden structures penciled out at $0.58 &#8211; 0.65 per square foot ($25,264 &#8211; 28,314 per acre). <\/p>\n\n\n\n<p>Other on-farm builds cost $0.43 &#8211; 0.51 per square foot ($18,730 &#8211; 22,215 per acre). In either case, the netting is the bulk of the cost. <\/p>\n\n\n\n<p>Depending on markets, pricing, and extent of SWD damage resulting in crop loss without netting, growers have reported 1-3 year payback periods on this practice. Assuming a life of 8 years for the netting and 20 years for the structure results in an amortized annual cost for the cable garden systems of $2,394 &#8211; 2,551 per acre. Netting is the main part of the system that will need maintenance and replacement and warranty varies by product.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/2022-swd-netting-ost-table-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1019\" height=\"556\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/2022-swd-netting-ost-table-1.jpg\" alt=\"\" class=\"wp-image-4815\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/2022-swd-netting-ost-table-1.jpg 1019w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/2022-swd-netting-ost-table-1-300x164.jpg 300w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/2022-swd-netting-ost-table-1-768x419.jpg 768w\" sizes=\"auto, (max-width: 1019px) 100vw, 1019px\" \/><\/a><figcaption class=\"wp-element-caption\">Costs based on research demonstration installations for 1\/2 acre of existing blueberry bushes.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Timing<\/h2>\n\n\n\n<p>Vulnerable crops should be covered by netting <strong>after the bulk of pollination has occurred, but before fruit starts to color.<\/strong> You can check on past timing of SWD sightings using the the <a rel=\"noreferrer noopener\" href=\"https:\/\/fruit.cornell.edu\/spottedwing\/distribution\/\" target=\"_blank\">historical sighting maps<\/a> housed at the <a rel=\"noreferrer noopener\" href=\"https:\/\/blogs.cornell.edu\/SWD1\/\" target=\"_blank\">Cornell IPM SWD blog<\/a>.  If you deploy netting too early, you exclude beneficial pollinators.  If you deploy too late, you may miss the chance to exclude SWD.  <\/p>\n\n\n\n<p>It may go without saying, but the time to start building an exclusion netting structure is well ahead of when it is needed!<\/p>\n\n\n\n<p> If you want to know the timing of SWD in your location more precisely, consider setting and monitoring <a rel=\"noreferrer noopener\" href=\"https:\/\/www.arbico-organics.com\/product\/scentry-spotted-wing-drosophila-trap-lure\/insect-traps-lures\" target=\"_blank\">lure traps<\/a> as shown in the video below.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Setting up a Spotted Wing Drosophila Scentry Trap &amp; Lure\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/z9IeuYECnJk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">This video from Ohio State University shows how to setup an SWD trap such as the <a href=\"https:\/\/www.arbico-organics.com\/product\/scentry-spotted-wing-drosophila-trap-lure\/insect-traps-lures\" target=\"_blank\" rel=\"noreferrer noopener\">Sentry SWD Trap and Lure<\/a>.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">&#8220;How To&#8221; Videos for Structure and Netting<\/h2>\n\n\n\n<p>We are compiling a series of videos showing how we built two wooden post and steel post SWD netting structures in partnership with <a href=\"https:\/\/gintec.ca\/\" target=\"_blank\" rel=\"noreferrer noopener\">GinTech Shade Technologies<\/a> as research demonstrations. <\/p>\n\n\n\n<p>Videos available so far:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Complete playlist on YouTube &#8211; <a rel=\"noreferrer noopener\" href=\"http:\/\/go.uvm.edu\/swdvideos\" target=\"_blank\">go.uvm.edu\/swdvideos<\/a><\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.youtube.com\/watch?v=8D6KkD7zuQA&amp;list=PLRhtZw1o6RdFwO3VAimzCZB5u5UWeprKU&amp;index=1\" target=\"_blank\">Overview of SWD Netting Trials<\/a> (19:59)<\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.youtube.com\/watch?v=vQOvKHtgyIc&amp;list=PLRhtZw1o6RdFwO3VAimzCZB5u5UWeprKU&amp;index=2\" target=\"_blank\">Basic Layout<\/a> (11:45)<\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.youtube.com\/watch?v=MQwopRoJ6fo&amp;list=PLRhtZw1o6RdFwO3VAimzCZB5u5UWeprKU&amp;index=3\" target=\"_blank\">Posts, Auguring Holes, Driving Anchors<\/a> (17:45)<\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.youtube.com\/watch?v=wpPLQbog8O8&amp;list=PLRhtZw1o6RdFwO3VAimzCZB5u5UWeprKU&amp;index=4\" target=\"_blank\">Setting Perimeter Posts and Tightening Cables<\/a> (29:47)<\/li>\n\n\n\n<li><a rel=\"noreferrer noopener\" href=\"https:\/\/www.youtube.com\/watch?v=Q_eKDxjiNxM&amp;list=PLRhtZw1o6RdFwO3VAimzCZB5u5UWeprKU&amp;index=5\" target=\"_blank\">Installing Netting Panels, Thinking about Vestibules, and Planning for Winter Storage<\/a> (17:26)<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Spotted Wing Drosophila (SWD) Exclusion Netting - Post and Wire Systems\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/videoseries?list=PLRhtZw1o6RdFwO3VAimzCZB5u5UWeprKU\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>To drive the helical earth anchors, it will be helpful to have an adapter.  The one we built is summarized in a <a href=\"https:\/\/go.uvm.edu\/anchoradapter\" target=\"_blank\" rel=\"noreferrer noopener\">set of plans<\/a> which you can download.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"791\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter-1024x791.jpg\" alt=\"\" class=\"wp-image-4792\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter-1024x791.jpg 1024w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter-300x232.jpg 300w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter-768x593.jpg 768w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter-1536x1187.jpg 1536w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter-2048x1583.jpg 2048w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/SWD-Netting-Anchor-Adapter-1568x1212.jpg 1568w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\"> This adapter makes it easier to drive the large earth anchors with an auger available at most rental stores. Check dimensions against your anchors and the specific auger available near you.<\/figcaption><\/figure>\n<\/div>\n\n\n<p>Other examples of structures used by growers are highlighted in the <a rel=\"noreferrer noopener\" href=\"https:\/\/youtu.be\/S7fptghAhM4\" target=\"_blank\">recording<\/a> and <a rel=\"noreferrer noopener\" href=\"https:\/\/www.uvm.edu\/sites\/default\/files\/UVM-Extension-Cultivating-Healthy-Communities\/horticulture\/SWD\/SWDManagementWebinar7-29-20.pdf\" target=\"_blank\">slides <\/a>from a 2020 UVM Extension <a rel=\"noreferrer noopener\" href=\"https:\/\/www.uvm.edu\/extension\/horticulture\/vermont-vegetable-and-berry-grower-webinar-series\" target=\"_blank\">VT Vegetable and Berry Grower Association Webinar<\/a>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/EMT-SWD-Struture.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/EMT-SWD-Struture.jpg\" alt=\"\" class=\"wp-image-4793\" width=\"636\" height=\"465\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/EMT-SWD-Struture.jpg 887w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/EMT-SWD-Struture-300x220.jpg 300w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/EMT-SWD-Struture-768x562.jpg 768w\" sizes=\"auto, (max-width: 636px) 100vw, 636px\" \/><\/a><figcaption class=\"wp-element-caption\">A netting support structure made using EMT conduit in Grand Isle, VT. $0.50\/ft2.<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/betz.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"626\" height=\"460\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/betz.jpg\" alt=\"\" class=\"wp-image-4799\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/betz.jpg 626w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/betz-300x220.jpg 300w\" sizes=\"auto, (max-width: 626px) 100vw, 626px\" \/><\/a><figcaption class=\"wp-element-caption\">A netting support structure made using EMT conduit in Woodbury, VT. Ten foot post spacing, $0.51\/ft2.<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-1024x768.jpg\" alt=\"\" class=\"wp-image-4828\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-1024x768.jpg 1024w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-300x225.jpg 300w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-768x576.jpg 768w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-1536x1152.jpg 1536w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-2048x1536.jpg 2048w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Deer-Ridge-SWD-net-end-1568x1176.jpg 1568w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">A simple hoop support structure for a small planting.<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-768x1024.jpg\" alt=\"\" class=\"wp-image-4830\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-768x1024.jpg 768w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-225x300.jpg 225w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-1152x1536.jpg 1152w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-1536x2048.jpg 1536w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-1568x2091.jpg 1568w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Betz-netting-jig1-scaled.jpg 1920w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/a><figcaption class=\"wp-element-caption\">Netting rolled on tubing for winter storage.<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Stored-onthe-cable.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"800\" src=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Stored-onthe-cable.jpg\" alt=\"\" class=\"wp-image-4831\" srcset=\"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Stored-onthe-cable.jpg 600w, https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Stored-onthe-cable-225x300.jpg 225w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><figcaption class=\"wp-element-caption\">Netting wrapped and stored on the cable in a 1\/2 acre cable garden system. This grower can deploy their netting and seal it up in 8 hours with two workers. Winter storage on the wire is accomplished by unzipping the seams, bunching, and wrapping in about 6 hours.<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Other Resources<\/h2>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/blogs.cornell.edu\/SWD1\/\" target=\"_blank\">Cornell University SWD Blog<\/a> &#8211; Frequent updates during the season, historical sighting maps for the northeast region.<\/p>\n\n\n\n<p><a href=\"https:\/\/fruit.cornell.edu\/spottedwing\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cornell Fruit Resources: SWD Guide<\/a> &#8211; In depth background on the pest.<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/www.canr.msu.edu\/ipm\/uploads\/files\/MSU-SWD-ID.pdf\" target=\"_blank\">Michigan State University <\/a><a rel=\"noreferrer noopener\" href=\"https:\/\/www.canr.msu.edu\/ipm\/uploads\/files\/MSU-SWD-ID.pdf\" target=\"_blank\">S<\/a><a rel=\"noreferrer noopener\" href=\"https:\/\/www.canr.msu.edu\/ipm\/uploads\/files\/MSU-SWD-ID.pdf\" target=\"_blank\">W<\/a><a rel=\"noreferrer noopener\" href=\"https:\/\/www.canr.msu.edu\/ipm\/uploads\/files\/MSU-SWD-ID.pdf\" target=\"_blank\">D<\/a><a href=\"https:\/\/www.canr.msu.edu\/ipm\/uploads\/files\/MSU-SWD-ID.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"> <\/a><a rel=\"noreferrer noopener\" href=\"https:\/\/www.canr.msu.edu\/ipm\/uploads\/files\/MSU-SWD-ID.pdf\" target=\"_blank\">Identification Guide<\/a> &#8211; Photo-based guide to identification and differentiation.<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/extension.psu.edu\/spotted-wing-drosophila-part-1-overview-and-identification\" target=\"_blank\">Pennsylvania State University SWD Guide<\/a> &#8211; Includes look-alike species for differentiation.<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/extension.unh.edu\/resource\/spotted-wing-drosophila-swd-%E2%80%93-major-pest-fruit-crops\" target=\"_blank\">University of New Hampshire SWD Guide<\/a> &#8211; Includes weekly scouting reports.<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/extension.umaine.edu\/blueberries\/factsheets\/insects\/210-spotted-wing-drosophila\/\" target=\"_blank\">University of Maine SWD Guide<\/a> &#8211; Focused on Wild Blueberries<\/p>\n\n\n\n<p><a rel=\"noreferrer noopener\" href=\"https:\/\/ag.umass.edu\/fruit\/resources\/spotted-wing-drosophila\" target=\"_blank\">University of Massachusetts SWD Guide<\/a> &#8211; Identification, biology, monitoring, and management.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.uvm.edu\/vtvegandberry\/SWDInfo.html\" target=\"_blank\" rel=\"noreferrer noopener\">University of Vermont \/ Vermont Vegetable and Berry Growers Association SWD Resource List<\/a> &#8211; A clearinghouse of SWD resources.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Share This Post<\/h2>\n\n\n\n<p><a href=\"https:\/\/go.uvm.edu\/swdnetting\">go.uvm.edu\/swdnetting<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Acknowledgements<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table><tbody><tr><td><br \/><img loading=\"lazy\" decoding=\"async\" width=\"106\" height=\"85\" class=\"wp-image-4807\" style=\"width: 106px\" src=\"http:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/sare-national.gif\" alt=\"\" \/><br \/>                                                                   <\/td><td>This work was informed by and supported by USDA NIFA Northeast Sustainable Agriculture, Research and Education (NESARE) funding via projects #<a rel=\"noreferrer noopener\" href=\"https:\/\/projects.sare.org\/project-reports\/fne14-813\/\" target=\"_blank\">FNE14-813<\/a> &amp; #<a href=\"https:\/\/projects.sare.org\/project-reports\/fne20-963\/\">FNE20-963<\/a>, and NYS Department of Agriculture and Markets with Specialty Crop Block Grant funding.<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>If you grow berry crops you&#8217;ve most likely heard of spotted wing drosophila (SWD, Drosophila suzukii). This invasive pest has caused significant crop losses in the region since at least 2011. While there are chemical pesticides with varied efficacy, one practice that we&#8217;ve focused on is physical exclusion with netting. Pioneered in the region by &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/blog.uvm.edu\/cwcallah\/2022\/05\/10\/exclusion-netting-for-spotted-wing-drosophila-swd\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Exclusion Netting for Spotted Wing Drosophila (SWD)&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1174,"featured_media":4796,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[710140,684047],"tags":[710142,710141,710148,710146,50371,710150,710144,710143],"class_list":["post-4787","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-protected-culture","category-energy-on-the-farm","tag-berries","tag-berry","tag-cable-garden","tag-netting","tag-organic","tag-post-and-wire-2","tag-spotted-wing-drosophila","tag-swd","entry"],"featured_image_src":"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7-600x400.jpg","featured_image_src_square":"https:\/\/blog.uvm.edu\/cwcallah\/files\/2022\/05\/Slide7-600x600.jpg","author_info":{"display_name":"Chris Callahan","author_link":"https:\/\/blog.uvm.edu\/cwcallah\/author\/cwcallah\/"},"_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/posts\/4787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/users\/1174"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/comments?post=4787"}],"version-history":[{"count":33,"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/posts\/4787\/revisions"}],"predecessor-version":[{"id":5298,"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/posts\/4787\/revisions\/5298"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/media\/4796"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/media?parent=4787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/categories?post=4787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/cwcallah\/wp-json\/wp\/v2\/tags?post=4787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}