{"id":3231,"date":"2010-11-12T14:17:16","date_gmt":"2010-11-12T19:17:16","guid":{"rendered":"http:\/\/extension.umaine.edu\/ipm\/"},"modified":"2019-02-27T12:49:00","modified_gmt":"2019-02-27T17:49:00","slug":"maple-tar-spot","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/","title":{"rendered":"Maple &#8211; Tar Spot"},"content":{"rendered":"<h3><em>Rhytisma acerinum<\/em><\/h3>\n<h4><strong>Maple &#8211; Tar Spot Signs &amp; Symptoms<\/strong><\/h4>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 25%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-3231 gallery-columns-4 gallery-size-medium'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"216\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-300x216.jpg\" class=\"attachment-medium size-medium\" alt=\"Infected leaves\" aria-describedby=\"gallery-1-3233\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-300x216.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-768x553.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-1024x738.jpg 1024w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-105x76.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-317x228.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-423x305.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-634x457.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-846x609.jpg 846w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-951x685.jpg 951w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-1268x913.jpg 1268w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2.jpg 1280w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3233'>\n\t\t\t\tSample 1: Infected leaves\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon portrait'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"270\" height=\"300\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-270x300.jpg\" class=\"attachment-medium size-medium\" alt=\"Infected leaf\" aria-describedby=\"gallery-1-3232\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-270x300.jpg 270w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-768x852.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-923x1024.jpg 923w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-105x116.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-317x352.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-423x469.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-634x703.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-846x939.jpg 846w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum-951x1055.jpg 951w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/Rhitismaacerinum.jpg 1024w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,270px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-3232'>\n\t\t\t\tSample 1: Infected leaf\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-300x225.jpg\" class=\"attachment-medium size-medium\" alt=\"Sample 2: Apothecia in tar spots\" aria-describedby=\"gallery-1-11447\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-300x225.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-768x576.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-317x238.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-423x317.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-634x476.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302183bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-11447'>\n\t\t\t\tSample 2: Apothecia in tar spots\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-300x225.jpg\" class=\"attachment-medium size-medium\" alt=\"Sample 2: Apothecia in tar spots\" aria-describedby=\"gallery-1-11448\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-300x225.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-768x576.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-317x238.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-423x317.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-634x476.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302184bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-11448'>\n\t\t\t\tSample 2: Apothecia in tar spots\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-300x225.jpg\" class=\"attachment-medium size-medium\" alt=\"Sample 2: Apothecia in tar spot with hymenia evident\" aria-describedby=\"gallery-1-11449\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-300x225.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-768x576.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-317x238.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-423x317.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-634x476.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809P4302188bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-11449'>\n\t\t\t\tSample 2: Apothecia in tar spot with hymenia evident\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"225\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-300x225.jpg\" class=\"attachment-medium size-medium\" alt=\"Sample 2: Apothecia in tar spot with hymenia evident\" aria-describedby=\"gallery-1-11446\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-300x225.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-768x576.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-317x238.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-423x317.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-634x476.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage_01bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-11446'>\n\t\t\t\tSample 2: Apothecia in tar spot with hymenia evident\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<hr \/>\n<h4><strong>Maple &#8211; Tar Spot Pathogen<\/strong><\/h4>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-2 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 25%;\n\t\t\t}\n\t\t\t#gallery-2 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-2 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-2' class='gallery galleryid-3231 gallery-columns-4 gallery-size-medium'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"226\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-300x226.jpg\" class=\"attachment-medium size-medium\" alt=\"Vertical cross-section of apothecium with ascospores emerging\" aria-describedby=\"gallery-2-11453\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-300x226.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-768x578.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-317x239.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-634x477.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage02bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-11453'>\n\t\t\t\tVertical cross-section of apothecium with ascospores emerging\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"226\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-300x226.jpg\" class=\"attachment-medium size-medium\" alt=\"\" aria-describedby=\"gallery-2-11454\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-300x226.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-768x578.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-317x239.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-634x477.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage03bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-11454'>\n\t\t\t\tVertical cross-section of apothecium with ascospores emerging\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"226\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-300x226.jpg\" class=\"attachment-medium size-medium\" alt=\"Vertical cross-section of apothecium with ascospores emerging\" aria-describedby=\"gallery-2-11455\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-300x226.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-768x578.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-317x239.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-634x477.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage04bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-11455'>\n\t\t\t\tVertical cross-section of apothecium with ascospores emerging\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"226\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-300x226.jpg\" class=\"attachment-medium size-medium\" alt=\"Vertical cross-section of apothecium with asci and paraphyses apparent\" aria-describedby=\"gallery-2-11456\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-300x226.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-768x578.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-317x239.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-634x477.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage05bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-11456'>\n\t\t\t\tVertical cross-section of apothecium with asci and paraphyses apparent\n\t\t\t\t<\/dd><\/dl><br style=\"clear: both\" \/><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"226\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-300x226.jpg\" class=\"attachment-medium size-medium\" alt=\"Ascospores with mucilagenous appendage faintly apparent\" aria-describedby=\"gallery-2-11457\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-300x226.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-768x578.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-317x239.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-634x477.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage07bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-11457'>\n\t\t\t\tAscospores with mucilagenous appendage faintly apparent \n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"226\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-300x226.jpg\" class=\"attachment-medium size-medium\" alt=\"Ascospore with mucilagenous appendage apparent\" aria-describedby=\"gallery-2-11452\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-300x226.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-768x578.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-317x239.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-634x477.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage15bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-11452'>\n\t\t\t\tAscospore with mucilagenous appendage apparent\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"226\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-300x226.jpg\" class=\"attachment-medium size-medium\" alt=\"Asci\" aria-describedby=\"gallery-2-11458\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-300x226.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-768x578.jpg 768w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-317x239.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-634x477.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2014\/03\/200403809MapleTarSpotImage08bw.jpg 800w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-2-11458'>\n\t\t\t\tAsci\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p><a href=\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/\"><em>Return to Plant Disease Images List<\/em><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rhytisma acerinum Maple &#8211; Tar Spot Signs &amp; Symptoms Maple &#8211; Tar Spot Pathogen Return to Plant Disease Images List<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":2005,"menu_order":546,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-3231","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Maple - Tar Spot - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension<\/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:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Maple - Tar Spot - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Rhytisma acerinum Maple &#8211; Tar Spot Signs &amp; Symptoms Maple &#8211; Tar Spot Pathogen Return to Plant Disease Images List\" \/>\n<meta property=\"og:url\" content=\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/\" \/>\n<meta property=\"og:site_name\" content=\"Cooperative Extension: Insect Pests, Ticks and Plant Diseases\" \/>\n<meta property=\"article:modified_time\" content=\"2019-02-27T17:49:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-300x216.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/\",\"url\":\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/\",\"name\":\"Maple - Tar Spot - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/ipm\/#website\"},\"datePublished\":\"2010-11-12T19:17:16+00:00\",\"dateModified\":\"2019-02-27T17:49:00+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/extension.umaine.edu\/ipm\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Insect and Plant Disease Diagnostic Labs\",\"item\":\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Plant Disease Images\",\"item\":\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"Maple &#8211; Tar Spot\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/extension.umaine.edu\/ipm\/#website\",\"url\":\"https:\/\/extension.umaine.edu\/ipm\/\",\"name\":\"Cooperative Extension: Insect Pests, Ticks and Plant Diseases\",\"description\":\"Information you can use. Research you can trust.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/extension.umaine.edu\/ipm\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Maple - Tar Spot - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension","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:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/","og_locale":"en_US","og_type":"article","og_title":"Maple - Tar Spot - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension","og_description":"Rhytisma acerinum Maple &#8211; Tar Spot Signs &amp; Symptoms Maple &#8211; Tar Spot Pathogen Return to Plant Disease Images List","og_url":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/","og_site_name":"Cooperative Extension: Insect Pests, Ticks and Plant Diseases","article_modified_time":"2019-02-27T17:49:00+00:00","og_image":[{"url":"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2010\/11\/MapleTarSpot2-300x216.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/","url":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/","name":"Maple - Tar Spot - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension","isPartOf":{"@id":"https:\/\/extension.umaine.edu\/ipm\/#website"},"datePublished":"2010-11-12T19:17:16+00:00","dateModified":"2019-02-27T17:49:00+00:00","breadcrumb":{"@id":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/maple-tar-spot\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/extension.umaine.edu\/ipm\/"},{"@type":"ListItem","position":2,"name":"Insect and Plant Disease Diagnostic Labs","item":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/"},{"@type":"ListItem","position":3,"name":"Plant Disease Images","item":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/plant-disease-images\/"},{"@type":"ListItem","position":4,"name":"Maple &#8211; Tar Spot"}]},{"@type":"WebSite","@id":"https:\/\/extension.umaine.edu\/ipm\/#website","url":"https:\/\/extension.umaine.edu\/ipm\/","name":"Cooperative Extension: Insect Pests, Ticks and Plant Diseases","description":"Information you can use. Research you can trust.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/extension.umaine.edu\/ipm\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"taxonomy_info":[],"featured_image_src_large":false,"author_info":{"display_name":"","author_link":"https:\/\/extension.umaine.edu\/ipm\/author\/"},"comment_info":0,"_links":{"self":[{"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/pages\/3231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/comments?post=3231"}],"version-history":[{"count":2,"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/pages\/3231\/revisions"}],"predecessor-version":[{"id":17415,"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/pages\/3231\/revisions\/17415"}],"up":[{"embeddable":true,"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/pages\/2005"}],"wp:attachment":[{"href":"https:\/\/extension.umaine.edu\/ipm\/wp-json\/wp\/v2\/media?parent=3231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}