{"id":800,"date":"2025-04-22T16:51:58","date_gmt":"2025-04-22T16:51:58","guid":{"rendered":"https:\/\/sites.rutgers.edu\/nursery-ipm\/?p=800"},"modified":"2025-08-27T19:43:55","modified_gmt":"2025-08-27T19:43:55","slug":"spongy-moth","status":"publish","type":"post","link":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/","title":{"rendered":"Spongy Moth"},"content":{"rendered":"<h2><strong>Spongy Moth (<em>Lymantria dispar<\/em>)<\/strong><\/h2>\n<h4><strong>GDD Window (base 50): 90-448<\/strong><\/h4>\n<h5><\/h5>\n<h4><strong>Overview:<\/strong><\/h4>\n<ul>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"1\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Overwinter as egg masses covered in yellowish fur, 1.5 inches long <\/span><span data-usefontface=\"false\" data-contrast=\"none\">and \u00be inches wide on trees, stones, walls, furniture, etc.\u00a0<\/span>\u200b<\/li>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"2\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Young caterpillars are black and hairy<\/span>\u200b<\/li>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"3\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Older caterpillars are 2 inches long<\/span><\/b><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0with\u00a0<\/span><b><span data-usefontface=\"false\" data-contrast=\"none\">5 pairs of blue dots and<\/span><\/b><b><span data-usefontface=\"false\" data-contrast=\"none\">6 pairs of red dots along their backs<\/span><\/b>\u200b<\/li>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"4\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Male moths are brown with a darker brown pattern on their wings<\/span>\u200b<\/li>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"5\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Females are white, slightly larger than the males, and have wings but <\/span><span data-usefontface=\"false\" data-contrast=\"none\">do not fly -Adults appear two weeks after pupae<\/span>\u200b<\/li>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"6\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Trees may be completely bare of leaves (3 consecutive yrs of 75% <\/span><\/b><b><span data-usefontface=\"false\" data-contrast=\"none\">defoliation will set trees up to be killed)\u00a0<\/span><\/b>\u200b<\/li>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"7\" data-aria-level=\"1\"><span data-usefontface=\"false\" data-contrast=\"none\">Heavy infestations will look barren and wintery in the summer\u00a0<\/span>\u200b<\/li>\n<li data-charcodes=\"45\" data-font=\"Calibri,Sans-Serif\" data-buautonum=\"8\" data-margin=\"540\" data-aria-posinset=\"8\" data-aria-level=\"1\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Host plants:\u00a0 over 300 species of trees and shrubs\u00a0<\/span><\/b>\u200b<\/li>\n<\/ul>\n<h4><strong>Management:<\/strong><\/h4>\n<h5><strong>Cultural Practices:<\/strong><\/h5>\n<ul>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"2\" data-aria-level=\"2\"><b><span data-usefontface=\"false\" data-contrast=\"none\">Natural Predators:<\/span><\/b><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0<\/span><i><span data-usefontface=\"false\" data-contrast=\"none\">Entomophaga <\/span><\/i><i><span data-usefontface=\"false\" data-contrast=\"none\">maimaiga<\/span><\/i><i><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0<\/span><\/i><span data-usefontface=\"false\" data-contrast=\"none\">fungus,\u00a0<\/span><i><span data-usefontface=\"false\" data-contrast=\"none\">Nuclear polyhedrosis <\/span><\/i><span data-usefontface=\"false\" data-contrast=\"none\">virus (NPV), <\/span><i><span data-usefontface=\"false\" data-contrast=\"none\">Clostridium<\/span><\/i><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0bacteria<\/span>\u200b<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"3\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Report sightings to agriculture officials<\/span>\u200b<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"4\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Follow quarantine regulations\u00a0<\/span>\u200b<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"5\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Crush pupae or brush it into a container <\/span><span data-usefontface=\"false\" data-contrast=\"none\">or soapy water using a disposable object<\/span>\u200b<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"6\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Apply a trap\/burlap banding or sticky <\/span><span data-usefontface=\"false\" data-contrast=\"none\">banding to capture caterpillars<\/span>\u200b<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"7\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Soak egg masses in soapy water for a few <\/span><span data-usefontface=\"false\" data-contrast=\"none\">days before disposing\u00a0<\/span>\u200b<\/li>\n<li data-charcodes=\"167\" data-font=\"Wingdings,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1980\" data-aria-posinset=\"8\" data-aria-level=\"3\"><span data-usefontface=\"false\" data-contrast=\"none\">Crushing eggs will not work<\/span>\u200b<\/li>\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\">Reduce tree stress<\/span><\/li>\n<\/ul>\n<p><strong style=\"color: inherit;font-size: 1.2em\">Materials:<\/strong><\/p>\n<ul>\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>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"1\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Pyrethroids [3]: &#8211;<\/span><span data-usefontface=\"false\" data-contrast=\"none\">thrins<\/span>\u200b\n<ul>\n<li data-charcodes=\"167\" data-font=\"Wingdings,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1980\" data-aria-posinset=\"2\" data-aria-level=\"3\"><span data-usefontface=\"false\" data-contrast=\"none\">Permethrin, bifenthrin<\/span>\u200b<\/li>\n<\/ul>\n<\/li>\n<li data-charcodes=\"8226\" data-font=\"Arial,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"3\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Carbamates [1A]: carbaryl<\/span><\/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<span data-usefontface=\"false\" data-contrast=\"none\">(larvae only, ~June application):\u00a0<\/span>\u200b\n<ul>\n<li><span data-usefontface=\"false\" data-contrast=\"none\">Neonicotinoids[4A]:<\/span><span data-usefontface=\"false\" data-contrast=\"none\"> acetamiprid (reduced\u00a0<\/span><span data-usefontface=\"false\" data-contrast=\"none\">risk)(translaminar)<\/span>\u200b<\/li>\n<li><span data-usefontface=\"false\" data-contrast=\"none\">Organophosphates [1B]: <\/span><span data-usefontface=\"false\" data-contrast=\"none\">acephate<\/span><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0(translaminar)<\/span>\u200b<\/li>\n<li><span data-usefontface=\"false\" data-contrast=\"none\">Diacylhydrazines<\/span><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0[1B]: <span class=\"TextRun  BCX0 SCXP221298261\" lang=\"EN-US\" xml:lang=\"EN-US\" data-usefontface=\"false\" data-contrast=\"none\"><span class=\"NormalTextRun  BCX0 SCXP221298261\">Diflubenzuron (IGR)<\/span><\/span><\/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\"><span class=\"LineBox SCXP35590923 BCX0\" style=\"font-weight: 400\"><span class=\"EOP SCXP35590923 BCX0\">Will harm non-target species<\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5><strong>Biorationals:<\/strong><\/h5>\n<ul>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"2\" data-aria-level=\"2\"><b><i><span data-usefontface=\"false\" data-contrast=\"none\">Bacillus thuringiensis\u00a0<\/span><\/i><\/b><b><span data-usefontface=\"false\" data-contrast=\"none\">(<\/span><\/b><b><span data-usefontface=\"false\" data-contrast=\"none\">Btk<\/span><\/b><b><span data-usefontface=\"false\" data-contrast=\"none\">)\u2003\u2003\u2003\u2003\u2003\u2003\u2003\u2003\u2003\u2003\u2003<\/span><\/b>\u200b\n<ul>\n<li data-charcodes=\"167\" data-font=\"Wingdings,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1980\" data-aria-posinset=\"3\" data-aria-level=\"3\"><span data-usefontface=\"false\" data-contrast=\"none\">Microbial disruptors of insect midgut\u00a0<\/span>\u200b<\/li>\n<li data-charcodes=\"167\" data-font=\"Wingdings,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1980\" data-aria-posinset=\"4\" data-aria-level=\"3\"><span data-usefontface=\"false\" data-contrast=\"none\">Only for populations less dense than<\/span><span data-usefontface=\"false\" data-contrast=\"none\">1000 eggs per acre<\/span>\u200b<\/li>\n<li data-charcodes=\"167\" data-font=\"Wingdings,Sans-Serif\" data-buautonum=\"8\" data-margin=\"1980\" data-aria-posinset=\"5\" data-aria-level=\"3\"><span data-usefontface=\"false\" data-contrast=\"none\">Most effective when applied in the <\/span><span data-usefontface=\"false\" data-contrast=\"none\">spring (1st &amp; 2nd instars)<\/span>\u200b<\/li>\n<\/ul>\n<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"6\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Insecticidal soap (young instars)<\/span>\u200b<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"7\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Spinosyns\u00a0[5]:\u00a0\u00a0<\/span><span data-usefontface=\"false\" data-contrast=\"none\">spinosad<\/span><span data-usefontface=\"false\" data-contrast=\"none\">\u00a0(translaminar)<\/span>\u200b<\/li>\n<li data-charcodes=\"111\" data-font=\"Courier New,monospace\" data-buautonum=\"8\" data-margin=\"1260\" data-aria-posinset=\"8\" data-aria-level=\"2\"><span data-usefontface=\"false\" data-contrast=\"none\">Diamides [28]: Chlorantraniliprole\u00a0<\/span><\/li>\n<\/ul>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_801\" aria-describedby=\"caption-attachment-801\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-801\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aa-5-Spongy-Moth-10-1-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aa-5-Spongy-Moth-10-1-300x200.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aa-5-Spongy-Moth-10-1-768x512.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/aa-5-Spongy-Moth-10-1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-801\" class=\"wp-caption-text\">Spongy moth caterpillar egg hatch will occur in many areas of NJ during the month of April. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)<\/figcaption><\/figure>\n<figure id=\"attachment_802\" aria-describedby=\"caption-attachment-802\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-802\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Weather-Effects-on-Insects-Mites-Caterpillers-2-1-768x512-1-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Weather-Effects-on-Insects-Mites-Caterpillers-2-1-768x512-1-300x200.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Weather-Effects-on-Insects-Mites-Caterpillers-2-1-768x512-1.jpg 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-802\" class=\"wp-caption-text\">This dead spongy moth caterpillar was killed by the Entomophaga fungus. This fungus is most viable during cool, moist springs. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)<\/figcaption><\/figure>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_803\" aria-describedby=\"caption-attachment-803\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-803\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Gypsy-Moth-Larvae-on-River-Birch-768x547-1-300x214.jpg\" alt=\"\" width=\"300\" height=\"214\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Gypsy-Moth-Larvae-on-River-Birch-768x547-1-300x214.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Gypsy-Moth-Larvae-on-River-Birch-768x547-1.jpg 768w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-803\" class=\"wp-caption-text\">Spongy Moths (formerly \u201cgypsy moths\u201d) are less selective feeders &amp; can successfully digest numerous toxins from many different plant hosts. (Photo Credit: Steven K. Rettke, Rutgers Coop. Ext.)<\/figcaption><\/figure>\n<figure id=\"attachment_804\" aria-describedby=\"caption-attachment-804\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-804\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Spongy-Moth-4-2-1-300x200.jpg\" alt=\"\" width=\"300\" height=\"200\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Spongy-Moth-4-2-1-300x200.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Spongy-Moth-4-2-1-768x512.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/Spongy-Moth-4-2-1.jpg 800w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-804\" class=\"wp-caption-text\">Photo credits: Steven K. Rettke, Rutgers Coop. Ext<\/figcaption><\/figure>\n<div class=\"mceTemp\"><\/div>\n<figure id=\"attachment_807\" aria-describedby=\"caption-attachment-807\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-807\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-Egg-Mass-6-Parasitoids-wasp-exit-holes-300x214.jpg\" alt=\"\" width=\"300\" height=\"214\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-Egg-Mass-6-Parasitoids-wasp-exit-holes-300x214.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-Egg-Mass-6-Parasitoids-wasp-exit-holes-1024x731.jpg 1024w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-Egg-Mass-6-Parasitoids-wasp-exit-holes-768x548.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-Egg-Mass-6-Parasitoids-wasp-exit-holes-1536x1096.jpg 1536w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-Egg-Mass-6-Parasitoids-wasp-exit-holes-2048x1461.jpg 2048w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-807\" class=\"wp-caption-text\">Photo credits: Steven K. Rettke, Rutgers Coop. Ext<\/figcaption><\/figure>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-809\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-1-Late-instar-killer-300x211.jpg\" alt=\"\" width=\"300\" height=\"211\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-1-Late-instar-killer-300x211.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-1-Late-instar-killer-1024x720.jpg 1024w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-1-Late-instar-killer-768x540.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-1-Late-instar-killer-1536x1080.jpg 1536w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-1-Late-instar-killer-2048x1441.jpg 2048w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-810\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-2-Map-of-US-spread-300x194.jpg\" alt=\"\" width=\"300\" height=\"194\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-2-Map-of-US-spread-300x194.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-2-Map-of-US-spread-1024x663.jpg 1024w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-2-Map-of-US-spread-768x497.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-2-Map-of-US-spread-1536x994.jpg 1536w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-2-Map-of-US-spread-2048x1326.jpg 2048w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<figure id=\"attachment_811\" aria-describedby=\"caption-attachment-811\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-811\" src=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-3-NJ-defoliation-by-year-300x225.jpg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-3-NJ-defoliation-by-year-300x225.jpg 300w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-3-NJ-defoliation-by-year-1024x768.jpg 1024w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-3-NJ-defoliation-by-year-768x576.jpg 768w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-3-NJ-defoliation-by-year-1536x1152.jpg 1536w, https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-3-NJ-defoliation-by-year-2048x1536.jpg 2048w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption id=\"caption-attachment-811\" class=\"wp-caption-text\">Photo credits: Steven K. Rettke, Rutgers Coop. Ext<\/figcaption><\/figure>\n<h6><\/h6>\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>Spongy Moth (Lymantria dispar) GDD Window (base 50): 90-448 Overview: Overwinter as egg masses covered in yellowish fur, 1.5 inches long and \u00be inches wide on trees, stones, walls, furniture, &hellip; <a href=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/\" class=\"\">Read More<\/a><\/p>\n","protected":false},"author":3407,"featured_media":808,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15],"tags":[],"class_list":["post-800","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>Spongy Moth - 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\/spongy-moth\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spongy Moth - Nursery IPM\" \/>\n<meta property=\"og:description\" content=\"Spongy Moth (Lymantria dispar) GDD Window (base 50): 90-448 Overview: Overwinter as egg masses covered in yellowish fur, 1.5 inches long and \u00be inches wide on trees, stones, walls, furniture, &hellip; Read More\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/\" \/>\n<meta property=\"og:site_name\" content=\"Nursery IPM\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-22T16:51:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-27T19:43:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1706\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Erin O. Quinn\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Erin O. Quinn\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/\",\"url\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/\",\"name\":\"Spongy Moth - Nursery IPM\",\"isPartOf\":{\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg\",\"datePublished\":\"2025-04-22T16:51:58+00:00\",\"dateModified\":\"2025-08-27T19:43:55+00:00\",\"author\":{\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/#\/schema\/person\/1a070508b880ef7fe0dc180e168e64cf\"},\"breadcrumb\":{\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#primaryimage\",\"url\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg\",\"contentUrl\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg\",\"width\":2560,\"height\":1706,\"caption\":\"Photo credits: Steven K. Rettke, Rutgers Coop. Ext\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Spongy Moth\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/#website\",\"url\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/\",\"name\":\"Nursery IPM\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/#\/schema\/person\/1a070508b880ef7fe0dc180e168e64cf\",\"name\":\"Erin O. Quinn\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/a5e6879be80394bab29d973d1210e67f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/a5e6879be80394bab29d973d1210e67f?s=96&d=mm&r=g\",\"caption\":\"Erin O. Quinn\"},\"url\":\"https:\/\/sites.rutgers.edu\/nursery-ipm\/author\/eoq1\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Spongy Moth - Nursery IPM","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/","og_locale":"en_US","og_type":"article","og_title":"Spongy Moth - Nursery IPM","og_description":"Spongy Moth (Lymantria dispar) GDD Window (base 50): 90-448 Overview: Overwinter as egg masses covered in yellowish fur, 1.5 inches long and \u00be inches wide on trees, stones, walls, furniture, &hellip; Read More","og_url":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/","og_site_name":"Nursery IPM","article_published_time":"2025-04-22T16:51:58+00:00","article_modified_time":"2025-08-27T19:43:55+00:00","og_image":[{"width":2560,"height":1706,"url":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg","type":"image\/jpeg"}],"author":"Erin O. Quinn","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Erin O. Quinn","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/","url":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/","name":"Spongy Moth - Nursery IPM","isPartOf":{"@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#primaryimage"},"image":{"@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#primaryimage"},"thumbnailUrl":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg","datePublished":"2025-04-22T16:51:58+00:00","dateModified":"2025-08-27T19:43:55+00:00","author":{"@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/#\/schema\/person\/1a070508b880ef7fe0dc180e168e64cf"},"breadcrumb":{"@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#primaryimage","url":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg","contentUrl":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-content\/uploads\/sites\/1396\/2025\/06\/April-22-25-Spongy-Moth-5-Male-adult-scaled.jpg","width":2560,"height":1706,"caption":"Photo credits: Steven K. Rettke, Rutgers Coop. Ext"},{"@type":"BreadcrumbList","@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/spongy-moth\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sites.rutgers.edu\/nursery-ipm\/"},{"@type":"ListItem","position":2,"name":"Spongy Moth"}]},{"@type":"WebSite","@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/#website","url":"https:\/\/sites.rutgers.edu\/nursery-ipm\/","name":"Nursery IPM","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sites.rutgers.edu\/nursery-ipm\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/#\/schema\/person\/1a070508b880ef7fe0dc180e168e64cf","name":"Erin O. Quinn","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sites.rutgers.edu\/nursery-ipm\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/a5e6879be80394bab29d973d1210e67f?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a5e6879be80394bab29d973d1210e67f?s=96&d=mm&r=g","caption":"Erin O. Quinn"},"url":"https:\/\/sites.rutgers.edu\/nursery-ipm\/author\/eoq1\/"}]}},"_links":{"self":[{"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/posts\/800"}],"collection":[{"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/users\/3407"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/comments?post=800"}],"version-history":[{"count":1,"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/posts\/800\/revisions"}],"predecessor-version":[{"id":812,"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/posts\/800\/revisions\/812"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/media\/808"}],"wp:attachment":[{"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/media?parent=800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/categories?post=800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.rutgers.edu\/nursery-ipm\/wp-json\/wp\/v2\/tags?post=800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}