{"id":658,"date":"2012-04-02T10:40:51","date_gmt":"2012-04-02T14:40:51","guid":{"rendered":"https:\/\/extension.umaine.edu\/potatoes\/?page_id=658"},"modified":"2021-09-01T07:46:56","modified_gmt":"2021-09-01T11:46:56","slug":"colorado-potato-beetle","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/potatoes\/ipm\/field-guide\/colorado-potato-beetle\/","title":{"rendered":"Colorado Potato Beetle"},"content":{"rendered":"<h3><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-659 alignright\" src=\"http:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb1.jpg\" alt=\"adult beetles on leaves\" width=\"213\" height=\"200\" \/>Adult Colorado Potato Beetle<\/h3>\n<p>The adult form of the Colorado potato beetle is about 3\/8&#8243; long and 1\/4&#8243; wide. The wing covers have characteristic yellow and black stripes.<\/p>\n<p>In Maine, only the adult form of this insect over-winters.<\/p>\n<p>The economic threshold for adult beetles: Average of 25 adults per 50 plants surveyed.<\/p>\n<p>Adults are capable of creating significant feeding damage, especially on small potato plants.<\/p>\n<h3>Colorado Potato Beetle Larvae<\/h3>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-671 alignright\" src=\"http:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb2.jpg\" alt=\"Colorado Potato Beetle Larvae\" width=\"213\" height=\"200\" srcset=\"https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb2.jpg 213w, https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb2-105x99.jpg 105w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,213px\" \/>Colorado potato beetle larvae are orange\/red in color with distinctive black spots along the side. This form of the Colorado potato beetle is capable of significant feeding damage.<\/p>\n<p>The economic threshold for Colorado potato beetle larvae:<\/p>\n<ul>\n<li>Small larvae: 200 per 50 plants.<\/li>\n<li>Large larvae: 75 per 50 plants.<\/li>\n<\/ul>\n<h3>Colorado Potato Beetle Larvae and Eggs<\/h3>\n<p>Typically very small Colorado potato beetle larvae will feed on the tender new growth of the plant. Larvae will feed and grow rapidly.<\/p>\n<p>Colorado potato beetle eggs are yellowish-orange, usually laid on the underside of a leaflet. Each adult female is capable of laying up to 500 eggs. Egg masses are usually laid with 15-40 eggs per egg mass.<\/p>\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: 50%;\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-658 gallery-columns-2 gallery-size-medium'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"210\" height=\"200\" src=\"https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb3.jpg\" class=\"attachment-medium size-medium\" alt=\"Colorado Potato Beetle Larvae\" srcset=\"https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb3.jpg 210w, https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb3-105x100.jpg 105w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,210px\" \/>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"216\" height=\"198\" src=\"https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb4.jpg\" class=\"attachment-medium size-medium\" alt=\"Colorado Potato Beetle Eggs\" srcset=\"https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb4.jpg 216w, https:\/\/extension.umaine.edu\/potatoes\/wp-content\/uploads\/sites\/49\/2012\/04\/cpb4-105x96.jpg 105w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,216px\" \/>\n\t\t\t<\/dt><\/dl><br style=\"clear: both\" \/>\n\t\t<\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Adult Colorado Potato Beetle The adult form of the Colorado potato beetle is about 3\/8&#8243; long and 1\/4&#8243; wide. The wing covers have characteristic yellow and black stripes. In Maine, only the adult form of this insect over-winters. The economic threshold for adult beetles: Average of 25 adults per 50 plants surveyed. Adults are capable [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":662,"menu_order":4,"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-658","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Colorado Potato Beetle - Cooperative Extension: Potatoes - 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\/potatoes\/ipm\/field-guide\/colorado-potato-beetle\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Colorado Potato Beetle - Cooperative Extension: Potatoes - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Adult Colorado Potato Beetle The adult form of the Colorado potato beetle is about 3\/8&#8243; long and 1\/4&#8243; wide. 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