The bronze birch borer (Agrilus anxius) is a destructive beetle that feeds on birch trees. Signs of this pest include off-color and sparse foliage in the upper canopy of the birch tree, dead branches in the upper crown, and swollen ridges on the trunk and branches. Small, D-shaped holes in the bark are the exit points of … See more This borer feeds on birch trees weakened from drought, poor growing conditions, or other insect infestations, such as birch leafminer. European birch, Betula pendula, is highly prone to borer attack. The native paper birch (Betula … See more Borer larvae make long, winding tunnels under the bark. This disrupts the vascular tissues, causing the trunk or branch to die from a lack of water and nutrients. See more Applications in early to mid-spring can reduce further borer infestations. Applications need to be made on rough areas of the bark on the main trunk and limbs, and especially … See more http://cues.cfans.umn.edu/old/extpubs/1417bbb/DG1417.html
Trees Tell Their Stories: Forest Management Decisions
WebMar 20, 2024 · Native to North America, the bronze birch borer (Agrilus anxius) is something we consider a serious pest and threat to a variety of birch trees in our region, including the popular white and paper-barked birches. In adult form, this beetle (shown) has a slender, dark bronze appearance and a length of up to ½ an inch. WebBronze birch borer (BBB) is a beetle in the Buprestidae family. It is olive to brown in color with a coppery metallic reflection (Figure 1). ... An illustrated scale can help homeowners … smart classroom conduct
Bronze Birch Borer : Aspen Arboriculture
WebTable 1 includes a list of approximate treatment dates if spraying bark to protect trees from becoming infested by clearwing borers. These timing guidelines are based on several years of monitoring borer flight periods … WebBronze birch borer is a quarantine pest for the European Union (2014/78/EU), and is on the EPPO A1 list of quarantine pests with potential to cause extensive damage if introduced. It is subject to EU import controls on birch material being imported from North America. Pending landings of birch material from North America must meet UK landing ... http://entomology.ca.uky.edu/ent43 smart classic 4.2 voc clear coat