{"id":716,"date":"2025-04-08T20:05:53","date_gmt":"2025-04-08T20:05:53","guid":{"rendered":"https:\/\/sites.rutgers.edu\/nursery-ipm\/?p=716"},"modified":"2025-08-27T19:46:13","modified_gmt":"2025-08-27T19:46:13","slug":"ambrosia-beetle","status":"publish","type":"post","link":"https:\/\/sites.rutgers.edu\/nursery-ipm\/ambrosia-beetle\/","title":{"rendered":"Ambrosia Beetle"},"content":{"rendered":"<h2><strong>Ambrosia Beetle (<em>Xylosandrus<\/em>)<\/strong><\/h2>\n<h4><strong>GDD Window (base 50): 75-815<\/strong><\/h4>\n<h5><\/h5>\n<h4><strong>Overview:<\/strong><\/h4>\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">New Jersey notable species: Black stem borer (<\/span><i><span data-usefontface=\"false\" data-contrast=\"none\">Xylosandrus<\/span><\/i><i><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0<\/span><\/i><i><span data-usefontface=\"false\" data-contrast=\"none\">germanus<\/span><\/i><span data-usefontface=\"false\" data-contrast=\"none\">)<\/span><i><span data-usefontface=\"false\" data-contrast=\"none\">,<\/span><\/i><span data-usefontface=\"false\" data-contrast=\"none\">granulate (Asian) borer (<\/span><i><span data-usefontface=\"false\" data-contrast=\"none\">Xyleborus<\/span><\/i><i><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0<\/span><\/i><i><span data-usefontface=\"false\" data-contrast=\"none\">crassiusculus<\/span><\/i><i><span data-usefontface=\"false\" data-contrast=\"none\">)<\/span><\/i>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Small, reddish brown to black, cylindrical beetles from 1\/8 &#8211; 3\/16 inches <\/span><span data-usefontface=\"false\" data-contrast=\"none\">long<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"3\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Entrance and exit holes from the beetle are about 1mm in diameter<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Increases plants&#8217; risk for infection by opportunistic pathogens (<\/span><span data-usefontface=\"false\" data-contrast=\"none\">i.e.<\/span><i><span data-usefontface=\"false\" data-contrast=\"none\">Fusarium\u00a0<\/span><\/i><span data-usefontface=\"false\" data-contrast=\"none\">spp.)<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Two generations per year<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"6\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Overwinter in tree galleries (tunnels they create inside of the trees)<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"7\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">First attacks occur from April to June, but peak adult emergence, flights,<\/span><span data-usefontface=\"false\" data-contrast=\"none\">and egg-laying occur during the first two weeks of May<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"8\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Sawdust and frass pushed out from the holes resemble toothpicks<\/span>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"9\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Once these are observed, it is too late to apply protective <\/span><span data-usefontface=\"false\" data-contrast=\"none\">insecticides<\/span>\u200b<\/li>\n<\/ul>\n<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"10\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Can cause increased sap production, branch wilting, dieback, bark<\/span><span data-usefontface=\"false\" data-contrast=\"none\">cracking, and wood staining<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"11\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Redbud flower bloom is a useful PPI<\/span><\/b>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"12\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Host plants:<\/span><\/b><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0Deciduous,\u00a0thin-barked species<\/span>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"13\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Dogwood, honey locust, magnolia, maple, redbud, Japanese <\/span><span data-usefontface=\"false\" data-contrast=\"none\">snowbell<\/span>\u200b<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4><strong>Management:<\/strong><\/h4>\n<h5><strong>Cultural Practices:<\/strong><\/h5>\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1170\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Avoid transporting infested plants<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1170\" data-aria-posinset=\"3\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Reduce plant stress<\/span><\/b>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1890\" data-aria-posinset=\"4\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Provide appropriate soil conditions and <\/span><span data-usefontface=\"false\" data-contrast=\"none\">sufficient space for root growth<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1890\" data-aria-posinset=\"5\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Protect trees from injury<\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1890\" data-aria-posinset=\"6\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Avoid excessive pruning, over- and <\/span><span data-usefontface=\"false\" data-contrast=\"none\">under watering <\/span>\u200b<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1890\" data-aria-posinset=\"7\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Trees under anaerobic stress are more likely <\/span><span data-usefontface=\"false\" data-contrast=\"none\">to be attacked<\/span>\u200b<\/li>\n<\/ul>\n<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1170\" data-aria-posinset=\"8\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Ethanol baited traps<\/span>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1890\" data-aria-posinset=\"9\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Use to scout for infestations and time <\/span><span data-usefontface=\"false\" data-contrast=\"none\">spraying treatments<\/span><\/li>\n<\/ul>\n<\/li>\n<li><span class=\"TextRun MacChromeBold Underlined  BCX0 SCXP162026515\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SingleUnderline  BCX0 SCXP162026515\">Watch for successive 70F days = triggers flight\u00a0<\/span><\/span><\/li>\n<\/ul>\n<h5><strong>Materials:<\/strong><\/h5>\n<ul style=\"font-weight: 400\">\n<li style=\"font-weight: 400\" data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"1\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Contact insecticides:<\/span><\/b><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0<\/span>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1890\" data-aria-posinset=\"3\" data-aria-level=\"3\"><span data-usefontface=\"true\" data-contrast=\"none\">Pyrethroids [3]: permethrin, bifenthrin<\/span>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"2610\" data-aria-posinset=\"4\" data-aria-level=\"4\"><span data-usefontface=\"false\" data-contrast=\"none\">Spray on lower stems before peak <\/span><span data-usefontface=\"false\" data-contrast=\"none\">beetle flight<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400\" data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"4\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Systemic insecticides:<\/span><\/b><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0<\/span>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1710\" data-aria-posinset=\"6\" data-aria-level=\"3\"><span data-usefontface=\"true\" data-contrast=\"none\">Not effective because <\/span><span data-usefontface=\"true\" data-contrast=\"none\">beetles <\/span><b><span data-usefontface=\"true\" data-contrast=\"none\">feed on fungus in <\/span><\/b><b><span data-usefontface=\"true\" data-contrast=\"none\">trees<\/span><\/b><span data-usefontface=\"true\" data-contrast=\"none\">, <\/span><i><span data-usefontface=\"true\" data-contrast=\"none\">NOT<\/span><\/i><span data-usefontface=\"true\" data-contrast=\"none\"> the tree tissues <\/span><span data-usefontface=\"true\" data-contrast=\"none\">themselves<\/span>\u200b.<\/li>\n<\/ul>\n<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"7\" data-aria-level=\"1\"><b style=\"font-weight: 400\"><span data-usefontface=\"false\" data-contrast=\"none\">Considerations:<\/span><\/b>\u200b\n<ul style=\"font-weight: 400\">\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"10\" data-aria-level=\"2\">Will harm beneficial and non-target species.\u200b<span class=\"LineBox SCXP35590923 BCX0\" style=\"font-weight: 400\"><span class=\"EOP SCXP35590923 BCX0\">\u200b<\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li style=\"list-style-type: none\"><\/li>\n<\/ul>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_717\" aria-describedby=\"caption-attachment-717\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-717\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa3-Ambrosia-Borer-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa3-Ambrosia-Borer-300x225.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa3-Ambrosia-Borer-768x576.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa3-Ambrosia-Borer.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-717\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<figure id=\"attachment_718\" aria-describedby=\"caption-attachment-718\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-718\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa4-Ambrosia-Borer-7-tooth-pick-300x224.jpg\" alt=\"\" width=\"300\" height=\"224\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa4-Ambrosia-Borer-7-tooth-pick-300x224.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa4-Ambrosia-Borer-7-tooth-pick-768x574.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa4-Ambrosia-Borer-7-tooth-pick.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-718\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<figure id=\"attachment_719\" aria-describedby=\"caption-attachment-719\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-719\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa6-Ambrosia-Borer-768x576-1-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa6-Ambrosia-Borer-768x576-1-300x225.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa6-Ambrosia-Borer-768x576-1.jpg 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-719\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<figure id=\"attachment_720\" aria-describedby=\"caption-attachment-720\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-720\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa5-Ambrosia-Borer-768x576-1-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa5-Ambrosia-Borer-768x576-1-300x225.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa5-Ambrosia-Borer-768x576-1.jpg 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-720\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<figure id=\"attachment_721\" aria-describedby=\"caption-attachment-721\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-721\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Ambrosia-beetle-borer-31-300x226.jpg\" alt=\"\" width=\"300\" height=\"226\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Ambrosia-beetle-borer-31-300x226.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Ambrosia-beetle-borer-31.jpg 474w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-721\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<figure id=\"attachment_722\" aria-describedby=\"caption-attachment-722\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-722\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa11-Ambrosia-Borer-300x230.jpg\" alt=\"\" width=\"300\" height=\"230\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa11-Ambrosia-Borer-300x230.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa11-Ambrosia-Borer-768x588.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa11-Ambrosia-Borer.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-722\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<figure id=\"attachment_723\" aria-describedby=\"caption-attachment-723\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-723\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa12-Ambrosia-Borer-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa12-Ambrosia-Borer-300x225.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa12-Ambrosia-Borer-768x576.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa12-Ambrosia-Borer.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-723\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<figure id=\"attachment_724\" aria-describedby=\"caption-attachment-724\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-724\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa14-Ambrosia-Borer-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa14-Ambrosia-Borer-300x225.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa14-Ambrosia-Borer-768x576.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa14-Ambrosia-Borer.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-724\" class=\"wp-caption-text\">Photo: Steven K. Rettke, Rutgers Cooperative Extension<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<h6><span class=\"LineBox SCXP56887253 BCX0\"><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">Disclaimer<\/span><\/span><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\"> &#8211; Materials do not cover all possible control scenarios and are intended for licensed professionals. Tradenames do not imply\u00a0<\/span><\/span><\/span><span class=\"LineBox SCXP56887253 BCX0\"><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">endorsement and are used as examples. You must strictly follow the label for each compound prior to use. Rutgers is not responsible for<\/span><\/span><\/span><span class=\"LineBox SCXP56887253 BCX0\"><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">m is used materials or damages thereof. The label is the law. Labels will provide detailed information on use and restrictions. Additionally, <\/span><\/span><\/span><span class=\"LineBox SCXP56887253 BCX0\"><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">application intervals, compatibility, surfactant use, PHI, PPE, important and other key information is described in detail. Always discuss\u00a0<\/span><\/span><\/span><span class=\"LineBox SCXP56887253 BCX0\"><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">treatments with your local agents.\u00a0<\/span><\/span><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-scheme-color=\"@C00000,,\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">Note: Neonicotinoids can only be legally applied in commercial agriculture settings by licensed <\/span><\/span><\/span><span class=\"LineBox SCXP56887253 BCX0\"><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-scheme-color=\"@C00000,,\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">applicators.\u00a0<\/span><\/span><span class=\"TextRun SCXP56887253 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-scheme-color=\"@3B7F23,9,18:76000\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun SCXP56887253 BCX0\">Guidelines and recommendations made in this presentation are specific to the state of New Jersey.\u00a0<\/span><\/span><\/span><\/h6>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ambrosia Beetle (Xylosandrus) GDD Window (base 50): 75-815 Overview: New Jersey notable species: Black stem borer (Xylosandrus\u00a0germanus),granulate (Asian) borer (Xyleborus\u00a0crassiusculus)\u200b Small, reddish brown to black, cylindrical beetles from 1\/8 &#8211; &hellip; <a href=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/ambrosia-beetle\/\" class=\"\">Read More<\/a><\/p>\n","protected":false},"author":3407,"featured_media":725,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pests"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ambrosia Beetle - Nursery IPM<\/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:\/\/sites.rutgers.edu\/nursery-ipm\/ambrosia-beetle\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ambrosia Beetle - Nursery IPM\" \/>\n<meta property=\"og:description\" content=\"Ambrosia Beetle (Xylosandrus) GDD Window (base 50): 75-815 Overview: New Jersey notable species: Black stem borer (Xylosandrus\u00a0germanus),granulate (Asian) borer (Xyleborus\u00a0crassiusculus)\u200b Small, reddish brown to black, cylindrical beetles from 1\/8 &#8211; &hellip; Read More\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/ambrosia-beetle\/\" \/>\n<meta property=\"og:site_name\" content=\"Nursery IPM\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-08T20:05:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-27T19:46:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aaa1-Ambosia-beetle-Black-stem-b.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"746\" \/>\n\t<meta property=\"og:image:height\" content=\"539\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Erin O. 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