Nebraskaland December 2019

Access digital copies of guides and regulations publications from the Nebraska Game and Parks Commission.

Issue link: http://digital.outdoornebraska.gov/i/1187402

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MIXED BAG 62 Nebraskaland • December 2019 In April 2018, a velvet longhorned beetle (Trichoferus campestris) emerged from a table built from black walnut wood harvested in southeastern South Dakota, near the Nebraska border. Due to this find, the Nebraska Department of Agriculture (NDA) set and monitored traps for velvet longhorned beetle. In 2018, traps were set at numerous locations across the state, which included parks, campgrounds and nurseries. Three funnel traps baited with an ethanol lure were set at each location, and all traps were negative. Trapping continued in 2019, using a new lure from USDA, called Trichoferone, designed more specifically to attract these beetles. The lure worked well, and multiple specimens were collected from traps in Cass, Douglas and Keith counties. The velvet longhorned beetle is an exotic, invasive insect, native to parts of Asia and eastern Russia. Likely introduced on solid wood packing material, this beetle has been collected in at least 16 states since 2000, from New York to Utah, and is considered established in Illinois, Minnesota and Utah. Most commonly found in apple and mulberry trees, but also known to infest walnut, honey locust, maple, birch, spruce, pine, willow, elm, cherry and peach trees, this borer infests both healthy and declining trees, and can develop in dead trees, which makes is very adept at moving in firewood. Adults are ½ to ¾ inch in length, with antennae nearly as long as their bodies. They are brown with scattered, light colored hairs on their thorax and wing covers, and are very difficult to distinguish from some of Nebraska's native beetles. Adults emerge April through August. Larvae hatch from eggs laid on tree bark, and bore into the tree, feeding under the bark. Late in the season, larvae bore deeper into the wood to overwinter, pupate and emerge in the spring. Velvet longhorned beetles can easily be transported by moving firewood. Leave your firewood at home, and instead obtain it where you plan to burn it. Purchase locally-sourced firewood for home heating. Nearly 20 states regulate firewood movement through laws and quarantines, and several federal quarantines also regulate firewood movement. Visit dontmovefirewood.org for more information. To report a possible VLB, contact the Nebraska Department of Agriculture at 402-471-2351 or agr.plant@nebraska.gov. VELVET LONGHORNED BEETLE – AN UPDATE By Julie Van Meter, State Entomologist, Nebraska Department of Agriculture

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