{"id":5440,"date":"2015-02-05T16:06:34","date_gmt":"2015-02-05T22:06:34","guid":{"rendered":"http:\/\/news.medill.northwestern.edu\/chicago\/?p=5440"},"modified":"2015-03-03T16:08:27","modified_gmt":"2015-03-03T22:08:27","slug":"beating-the-beetle-giving-ash-trees-a-second-life","status":"publish","type":"post","link":"https:\/\/news.medill.northwestern.edu\/chicago\/beating-the-beetle-giving-ash-trees-a-second-life\/","title":{"rendered":"Beating the beetle: Giving ash trees a second life"},"content":{"rendered":"<p>By Jasmine Sanborn<\/p>\n<p>\u201cTreecycling\u201d is giving a second life to tens of millions of ash trees attacked by one small but powerful beetle.<\/p>\n<p>Instead of chipping fallen ash trees into mulch or chopping them into firewood, groups such as the <a href=\"http:\/\/illinoisurbanwood.org\" target=\"_blank\">Illinois Wood Utilization team<\/a> are promoting a practical approach &#8211; \u201ceven when you can\u2019t save your tree, you can save its wood.\u201d<!--more--><\/p>\n<p>Think furniture, flooring, toys and beautiful bowls or baskets.<\/p>\n<p>It\u2019s one answer to the Emerald Ash Borer, named for its vibrant metallic green color. The killer beetle has made a home in 24 states, two Canadian providences and is continuing to spread. In just 10 years, it has become the most destructive forest pest ever seen in North America.<\/p>\n<p>The wood utilization group, funded by a grant from the U.S. Forest Service, is targeting the use of wood from our urban forests. That includes all city trees, street trees, trees in parks and preserves and trees on private property.<\/p>\n<p>The treecycling wood chain now engages entire communities as arborists, sawyers, woodworkers and shop owners to get involved.<\/p>\n<figure id=\"attachment_5446\" aria-describedby=\"caption-attachment-5446\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/news.medill.northwestern.edu\/chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab2-sanborn.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-5446 size-full\" src=\"http:\/\/news.medill.northwestern.edu\/chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab2-sanborn.jpg\" alt=\"Graphic by Jasmine Sanborn\" width=\"600\" height=\"800\" srcset=\"https:\/\/s3.amazonaws.com\/medill.wordpress.offload\/WP%20Media%20Folder%20-%20medill-reports-chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab2-sanborn.jpg 600w, https:\/\/s3.amazonaws.com\/medill.wordpress.offload\/WP%20Media%20Folder%20-%20medill-reports-chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab2-sanborn-225x300.jpg 225w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/a><figcaption id=\"caption-attachment-5446\" class=\"wp-caption-text\">(Jasmine Sanborn\/Medill)<\/figcaption><\/figure>\n<p>\u201cPreviously, it has been more expensive to take the wood off site and have it milled. It has been cheaper to chip the wood and have it utilized in close proximity to where it was cut,\u201d said Lydia Scott, director of the <a href=\"http:\/\/www.mortonarb.org\/science-conservation\/chicago-region-trees-initiative\" target=\"_blank\">Chicago Region Trees Initiative<\/a>.\u00a0\u201cGetting the sawyer to the landowner is the key here.\u201d<\/p>\n<p>After arborists remove the tress, they are either sent to sawmills within the quarantine area or sawyers bring their portable sawmills to the site. Once cut into lumber, the trees are clear of emerald ash borer and are safe for travel.<\/p>\n<p>Reclaimed wood from the dead and diseased trees could equal close to 30 percent of the country\u2019s hardwood needs \u2014 an equivalent of 3.8 billion board feet, according to the Illinois Wood Utilization Team.<\/p>\n<p>Furniture and flooring are not the only ways ash trees are finding second lives.<\/p>\n<p>Urban timber has tons of possibilities for sustainable lumber projects that can be used local and private use. Emerald ash lumber can be donated to non-profit organizations, K-12 schools for use as theater sets and desks. Other uses could include woodworking programs at Department of Corrections facilities.<\/p>\n<p>\u201cWe try to encourage those communities who are taking down thousands of trees instead of mulching them we\u2019re asking them to consider these mills turn them to lumber and put your resources to work,\u201d said Juliann Heminghous, Emerald Ash Borer coordinator for the <a href=\"http:\/\/www.agr.state.il.us\/eab\/\" target=\"_blank\">Illinois Department of Agriculture<\/a>. \u201cBuild fences around your parks, build park benches or picnic tables. Build log cabins for DNR in the state parks.\u201d<\/p>\n<p>In an effort to inspire creativity, the group partnered with the Chicago Furniture Designers Association and local sawmills in 2008 to create a temporary traveling exhibition titled: <a href=\"http:\/\/www.risingfromashes.org\" target=\"_blank\">Rising from Ashes: Furniture from Lost Trees<\/a> featuring works made out of reclaimed urban wood.<\/p>\n<p>\u201cI think a lot of people forgot how beautiful ash wood is because they\u2019re so used to using oak, maple and pine and they\u2019ve always just thought that ash wood was baseball bats and they forgot it could be used for more,\u201d said Heminghous.<\/p>\n<h1>Beneath the bark<\/h1>\n<p>Nobody knows for sure how the beetle, native to Asia, migrated to North America, but experts assume it came from insects left in\u00a0ash logs was used to stabilize shipping cargo.<\/p>\n<p>The adult emerald ash borer surfaces between May and July and the female lays between 40 and 70 eggs between layers of the bark and in bark crevices. In 7 to 10 days, the eggs hatch into larvae who bore through the bark into the phloem layer of the tree, eating away at the tree\u2019s water and nutrient tissues, but leaving the wood unaffected.<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_5442\" aria-describedby=\"caption-attachment-5442\" style=\"width: 474px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/news.medill.northwestern.edu\/chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab1-sanborn.jpg\"><img decoding=\"async\" class=\"wp-image-5442 size-large\" src=\"http:\/\/news.medill.northwestern.edu\/chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab1-sanborn-1024x731.jpg\" alt=\"Emerald Ash Borers go through a complete metamorphosis during their life cycle.\" width=\"474\" height=\"338\" srcset=\"https:\/\/news.medill.northwestern.edu\/chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab1-sanborn-1024x731.jpg 1024w, https:\/\/news.medill.northwestern.edu\/chicago\/wp-content\/uploads\/sites\/3\/2015\/02\/eab1-sanborn-300x214.jpg 300w\" sizes=\"(max-width: 474px) 100vw, 474px\" \/><\/a><figcaption id=\"caption-attachment-5442\" class=\"wp-caption-text\">Emerald Ash Borers go through a complete metamorphosis during their life cycle. Click to enlarge. (Jasmine Sanborn\/Medill)<\/figcaption><\/figure>\n<p>It\u2019s similar to when you remove the peel from an orange \u2014 just because you\u2019ve removed the skin doesn\u2019t make the inside any less worthwhile.<\/p>\n<p>As the name suggests, the beetle attacks only ash trees.<\/p>\n<p>For many ash trees throughout Illinois, it is too late for them to be saved.<\/p>\n<p>Ash trees are incredibly common area in landscaping as they cost less and grow faster than most trees. Some 8 percent of the tree canopy \u2014 12.7 million trees \u2014 in the Chicago region are ash. In the next five years, only trees treated with insecticides will remain, according to the Morton Arboretum in Lisle.<\/p>\n<p>The borer first arrived in Michigan in 2002, but wasn\u2019t detected in Illinois until 2006. Despite the state\u2019s best efforts, the beetle has continued to spread, with 61 of Illinois\u2019 102 counties now infested.<\/p>\n<p>In residential neighborhoods hit hardest, homeowners are losing more than just sidewalk aesthetic. Residents have complained of lower property values and higher water and electric bills, according to natural resources and agriculture officials. Roots hold water on a landscape and shade from trees keeps buildings cooler.<\/p>\n<p>The Illinois Department of Natural Resources and the Department of Agriculture have tried to combat the spread of the beetle by establishing quarantine zones and firewood bans.<\/p>\n<p>\u201cThe problem is that once you know your tree is infested with emerald ash borer, it\u2019s been there probably for four to seven years,\u201d said Heminghous. \u201cIf you\u2019re a regular traveler with firewood and you cut down your ash trees and you\u2019re taking it to this county or the next, you don\u2019t know that you have it.\u201d<\/p>\n<p>Detecting the beetle has proved to be a big problem. Due to the 300\u00a0to 500\u00a0day incubation period of the larvae, beetles in most trees aren\u2019t detected until it\u2019s too late. Ashes with a low density of beetles may show no external symptoms at all.<\/p>\n<p>Another problem results from the egg laying pattern of the beetle and possibility of spread. Females often lay eggs on nearby trees, i.e. within 100 yards of the original tree they infested. Some beetles have a much wider flight pattern and can take their eggs anywhere from 0.5 to 3 miles.<\/p>\n<p>\u201cThere may be only one beetle, but that\u2019s enough for her to lay her eggs and infest another county,\u201d said Heminghous.<\/p>\n<p>In an effort to naturally combat the beetle population, local and state governments are looking at introducing one of their natural predators.<\/p>\n<p>\u201cThere\u2019s only so many years of research that have gone into this, so they don\u2019t have a silver bullet chemical. Probably the silver bullet is the biological approach, bringing their nemesis over from Asia,\u201d said Heminghous.<\/p>\n<h1>Welcoming in wasps<\/h1>\n<p>The USDA has approved three species of parasitic non-stinging wasps for import from China.<\/p>\n<p>The wasp eggs develop inside of the ash borer larvae, killing it in about a week before they eat their way out of the corpse. After they emerge from the trees, the adult wasps continue to feed on larvae and eggs in the area. Woodpeckers are the wasps only natural competition.<\/p>\n<p>According to the USDA, the wasps are not attracted to pets or people and have no stingers. What looks like a stinger is actually their egg-laying organ.<\/p>\n<p>Currently, scientists are breeding and releasing them.\u00a0As of fall, the wasps have been released in 19 states. But their population still has to catch up to the immense borer population and Illinois doesn&#8217;t have the wasps as yet.<\/p>\n<p>\u201cIt\u2019ll be years before that balance comes back into the ecosystem until then, there\u2019s no silver bullet to save those ash trees,\u201d said Heminghous.<\/p>\n<p>Another method of control in urban areas or for high value trees is the use of insecticides.<\/p>\n<p>Insecticides are only effective while trees are still healthy enough to carry poison through the vascular system of the tree and into the branches and canopy. Multi-year studies have shown that if more than 50 percent of the canopy appears to be thinned out, that the tree is most likely too sick to save. According to the Illinois Department of Agriculture, if treated soon enough, it is estimated that insecticides can save infested trees\u00a0 20 to 40 percent of the time.<\/p>\n<p>Saving trees can be an expensive process. Applying pesticides every two years costs on average of $250 per tree and rates can vary if you call in a tree specialist. But removal and replacement can average $750 &#8211; $1200 a tree.<\/p>\n<p>In the end, it all comes down to the way we see trees and their contributions to society.<\/p>\n<p>\u201cI don&#8217;t think people think about trees as living,\u201d said Scott. \u201cPeople need to understand that trees are growing, living plants in need of our help so that they, in turn, can help us.\u201d<\/p>\n<p>Ten key organizations, such as Openlands, the Morton Arboretum and the USDA Forest Service, joined together in 2013 to establish the Chicago Region Trees Initiative to educate people about trees and expand tree diversity in the region. By building more robust and diverse forests, the initiative hopes to not run into a problem like the emerald ash borer again.<\/p>\n<p>\u201cThe Morton Arboretum has developed a species list that enables landowners and managers to select from about 214 different species that are appropriate in northern Illinois. If we can get people to plant broadly diverse species then we are less likely to run into a problem similar to the ash problem in the future,\u201d said Scott.<\/p>\n<p>The initiative is working with more than 100 partners who have committed to \u201cup their game\u201d in growing healthier forests in the region.<\/p>\n<p>They have also developed eight work groups to meet the goals of the initiative. Their work ranges from collecting forest data to assist in diverse tree planting, management training for those with little to no forest training and green infrastructure work groups.<\/p>\n<p>Scientists have also been working to collect seeds of the fallen ash trees. Some labs are researching a hybrid that is more ash borer resilient species as they anticipate the reintroduction of ash trees into the North American landscape.<\/p>\n<p>\u201cThere are a number of things that can be done with this wood and I think that\u2019s where we want to go because it\u2019s a very conscious effort to have a small carbon footprint. There\u2019s only so many wood chips you can put into a playground,\u201d said Heminghous.<\/p>\n<div id=\"featurecaption\">Photo at top: An ash tree in Michigan that survived Emerald Ash Borer. (Wayne White\/<a href=\"http:\/\/www.savetheash.com\/pictures-emerald-ash-borer\/\" target=\"_blank\">Save The Ash Trees<\/a>)<\/div>\n","protected":false},"excerpt":{"rendered":"<p>By Jasmine Sanborn \u201cTreecycling\u201d is giving a second life to tens of millions of ash trees attacked by one small but powerful beetle. Instead of chipping fallen ash trees into mulch or chopping them into firewood, groups such as the Illinois Wood Utilization team are promoting a practical approach &#8211; \u201ceven when you can\u2019t save [&hellip;]<\/p>\n","protected":false},"author":84,"featured_media":5463,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[194,29,243],"tags":[],"class_list":["post-5440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arts-culture","category-health-and-science","category-winter-2015"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Beating the beetle: Giving ash trees a second life - Medill Reports Chicago<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/news.medill.northwestern.edu\/chicago\/beating-the-beetle-giving-ash-trees-a-second-life\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Beating the beetle: Giving ash trees a second life - Medill Reports Chicago\" \/>\n<meta property=\"og:description\" content=\"By Jasmine Sanborn \u201cTreecycling\u201d is giving a second life to tens of millions of ash trees attacked by one small but powerful beetle. 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