{"id":18777,"date":"2019-09-16T09:24:02","date_gmt":"2019-09-16T13:24:02","guid":{"rendered":"https:\/\/extension.umaine.edu\/ipm\/?page_id=18777"},"modified":"2021-08-31T16:01:18","modified_gmt":"2021-08-31T20:01:18","slug":"5063e","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/publications\/5063e\/","title":{"rendered":"Damping Off of Vegetables"},"content":{"rendered":"<h3><div class=\"printfriendly pf-button  pf-alignleft\">\n                    <a href=\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/publications\/5063e\/?pfstyle=wp\" rel=\"nofollow\" onclick=\"pfTrackEvent(&#039;Damping Off of Vegetables&#039;); return false;\" title=\"Printer Friendly, PDF & Email\">\n                    <img decoding=\"async\" class=\"pf-button-img\" src=\"https:\/\/cdn.printfriendly.com\/buttons\/printfriendly-pdf-email-button-notext.png\" alt=\"Print Friendly, PDF & Email\" style=\"width: 110px;height: 30px;\"  \/>\n                    <\/a>\n                <\/div><\/h3>\n<h3>Pest Management Fact Sheet #5063<\/h3>\n<p><em>Authors: Dr. Alicyn Smart and Nathan Andrews<\/em><\/p>\n<p><strong>For information about UMaine Extension programs and resources, visit <a href=\"https:\/\/extension.umaine.edu\/\">extension.umaine.edu<\/a>.<br \/>\nFind more of our publications and books at <a href=\"https:\/\/extension.umaine.edu\/publications\/\">extension.umaine.edu\/publications\/<\/a>.<\/strong><strong><span style=\"font-family: Arial;font-size: x-small\"><br \/>\n<\/span><\/strong><\/p>\n<h4><strong>Pathogen:<\/strong> Many fungal genera including <em>Alternaria, Botrytis,<\/em> <em>Fusarium, <\/em>and <em>Rhizoctonia<\/em> as well as Protist genera <em>Pythium<\/em> and <em>Phytopthera<\/em><\/h4>\n<h3>Introduction<\/h3>\n<p>Damping-off is a common but highly damaging plant disease that affects seedlings at the beginning of the plant\u2019s life cycle. This soil-borne disease infects young or germinating seedlings during unfavorable growing conditions. In Maine, this usually will be caused by cool, wet conditions both above and below the soil line. In these conditions, spores will quickly cause seedlings to rot, collapse, and die. Within days of germination, seed beds can lose hundreds or thousands of seedlings to this disease.<\/p>\n<h3>Host Plants<\/h3>\n<ul>\n<li>all vegetable seedlings<\/li>\n<\/ul>\n<h3>Symptoms and Signs<em><strong><br \/>\n<\/strong><\/em><\/h3>\n<p>Damping off will occur very rapidly. Seeds and germinated plants may be rotted quickly and fail to emerge above ground. Emerged seedlings will begin to rot or brown on the stem or at or below the soil line, causing the plant to topple over and die. Wet lesions may be found on the stems or crowns of these plants. Depending on the pathogenic fungi causing the disease, a foliar blight may appear on the cotelydons or the true leaves.<\/p>\n<h3>Management<\/h3>\n<ul>\n<li>When seeding, do not stack trays after filled with soil. This can cause compaction of the soil and add stress to the plant when germinating.<\/li>\n<li>Sterilize any reused materials like seedling trays by removing all the soil from the tray and submerging it in a 10% bleach solution<\/li>\n<li>Add biological organisms to the soil when seeding. Examples of products are listed below.<\/li>\n<li>Plant seedlings in warm soil and dry conditions.<\/li>\n<li>Supply bottom heat to trays to increase soil temperature<\/li>\n<li>Plant seeds shallowly in soil or seed trays<\/li>\n<li>Use proper spacing of seedlings recommended during planting.<\/li>\n<li>Avoid overwatering.<\/li>\n<li>Avoid using fungicides if possible due to seedlings being sensitive to phytotoxicity, which may occur when pesticides are applied.<\/li>\n<\/ul>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"3\" align=\"center\">\n<thead>\n<tr align=\"left\">\n<th style=\"background-color: #eeeeee;text-align: center\" colspan=\"3\" scope=\"colgroup\" align=\"left\"><strong>Fungicides<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr align=\"left\">\n<th scope=\"col\" align=\"left\">Active Ingredient<\/th>\n<th scope=\"col\" align=\"left\">Application<\/th>\n<th scope=\"col\" align=\"left\">Trade Name<\/th>\n<\/tr>\n<tr>\n<td><em>Bacillus subtilis v. amyloliquefaciens<\/em><\/td>\n<td>2.6 to 5.2 oz\/A<\/td>\n<td>Taegro ECO<sup>OG<\/sup><\/td>\n<\/tr>\n<tr>\n<td><em>Coniothyrium minitans<\/em><\/td>\n<td>0.75 to 1.5 oz per 1000 ft<sup>2<\/sup><\/td>\n<td>Contans WG<sup>OG<\/sup><\/td>\n<\/tr>\n<tr>\n<td>cyazofamid*<\/td>\n<td>3 fl oz\/100-gal water<\/td>\n<td>Ranman<\/td>\n<\/tr>\n<tr>\n<td>mancozeb<\/td>\n<td>8 oz\/100 lb. seed<\/td>\n<td>Dithane M45<\/td>\n<\/tr>\n<tr>\n<td>propamocarb HCl*<\/td>\n<td>See label for rates<\/td>\n<td>Previcur Flex<\/td>\n<\/tr>\n<tr>\n<td><em>Streptomyces griseoviridis<\/em><\/td>\n<td>1 to 2 g\/cubic yd<\/td>\n<td>MycoStop<sup>OG<\/sup><\/td>\n<\/tr>\n<tr>\n<td><em>Trichoderma asperellum, T. gamsii<\/em><\/td>\n<td>See label for rates<\/td>\n<td>Bioten<sup>OG<\/sup><\/td>\n<\/tr>\n<tr>\n<td><em>Trichoderma<\/em> species<\/td>\n<td>See label for rates<\/td>\n<td>RootShield<sup>OG<\/sup>, Rootshield Plus<sup>OG<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>*For <em>Pythium <\/em>and <em>Phytopthera<\/em> ONLY<\/p>\n<p>You should check your local town ordinance for any pesticide restrictions before application.<\/p>\n<h3>References<span style=\"color: #3698d4\"><strong><br \/>\n<\/strong><\/span><\/h3>\n<p>Meadows, Inga, Sharpe, Suzette, and Michelle Henson (2017, December 6). <em>Damping off in Flower and Vegetable Seedlings.<\/em> Retrieved from North Carolina State University \u2013 Extension: https:\/\/content.ces.ncsu.edu\/damping-off-in-flower-and-vegetable-seedlings<\/p>\n<p>Seebold, Kenneth W., and Nicole A. Ward (2012, February). <em>Damping-off<br \/>\nof Vegetables and Herbaceous Ornamentals.<\/em> Retrieved from University of Kentucky \u2013 Cooperative Extension: https:\/\/plantpathology.ca.uky.edu\/files\/ppfs-gen-03.pdf<\/p>\n<p>Moorman, Gary W (2011, April 27). <em>Damping Off.<\/em> Retrieved from Pennsylvania State University \u2013 Extension: https:\/\/extension.psu.edu\/damping-off<\/p>\n<p>Johnson, Michael, and Claudia Nischwitz (2014, October). <em>Damping-off<\/em>. Retrieved from Utah State University \u2013 Extension: https:\/\/utahpests.usu.edu\/uppdl\/files-ou\/factsheet\/PLP-021.pdf<\/p>\n<p>Multiple Authors. <em>Disease Control: Tomato, Greenhouse, and High Tunnel<\/em>. Retrieved from New England Vegetable Management Guide: https:\/\/nevegetable.org\/crops\/disease-control-24<\/p>\n<p>Wick, Robert L. (2013, December). <em>Damping-Off of Bedding Plants and Vegetables<\/em>. Retrieved from the University of Massachusetts, Amherst \u2013 Extension: https:\/\/ag.umass.edu\/greenhouse-floriculture\/fact-sheets\/damping-off-of-bedding-plants-vegetables<\/p>\n<hr \/>\n<h3 style=\"text-align: center\"><span style=\"color: #ff0000\"><strong>WHEN USING PESTICIDES, ALWAYS FOLLOW LABEL DIRECTIONS!<\/strong><\/span><\/h3>\n<p style=\"text-align: center\"><strong>Alicyn Smart, DPM<br \/>\n<\/strong><strong>Plant Pathologist and Director of the Plant Disease Diagnostic Laboratory<br \/>\n<\/strong><strong>University of Maine Cooperative Extension<\/strong><\/p>\n<hr \/>\n<p><em>Information in this publication is provided purely for educational purposes. No responsibility is assumed for any problems associated with the use of products or services mentioned. No endorsement of products or companies is intended, nor is criticism of unnamed products or companies implied.<\/em><\/p>\n<p>\u00a9 2019<\/p>\n<p><strong>Call 800.287.0274 (in Maine), or 207.581.3188, for information on publications and program offerings from University of Maine Cooperative Extension, or visit <a href=\"http:\/\/extension.umaine.edu\">extension.umaine.edu<\/a>.<\/strong><\/p>\n<p><em>The University of Maine is an EEO\/AA employer, and does not discriminate on the grounds of race, color, religion, sex, sexual orientation, transgender status, gender expression, national origin, citizenship status, age, disability, genetic information or veteran\u2019s status in employment, education, and all other programs and activities. The following person has been designated to handle inquiries regarding non-discrimination policies: Director of Equal Opportunity, 101 North Stevens Hall, University of Maine, Orono, ME 04469-5754, 207.581.1226, TTY 711 (Maine Relay System).<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pest Management Fact Sheet #5063 Authors: Dr. Alicyn Smart and Nathan Andrews For information about UMaine Extension programs and resources, visit extension.umaine.edu. Find more of our publications and books at extension.umaine.edu\/publications\/. Pathogen: Many fungal genera including Alternaria, Botrytis, Fusarium, and Rhizoctonia as well as Protist genera Pythium and Phytopthera Introduction Damping-off is a common but [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":3249,"menu_order":0,"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-18777","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>Damping Off of Vegetables - 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\/publications\/5063e\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Damping Off of Vegetables - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Pest Management Fact Sheet #5063 Authors: Dr. Alicyn Smart and Nathan Andrews For information about UMaine Extension programs and resources, visit extension.umaine.edu. 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