{"id":4601,"date":"2011-03-18T15:15:22","date_gmt":"2011-03-18T19:15:22","guid":{"rendered":"http:\/\/extension.umaine.edu\/ipm\/"},"modified":"2021-08-31T16:04:40","modified_gmt":"2021-08-31T20:04:40","slug":"5093e","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/ipm\/ipddl\/publications\/5093e\/","title":{"rendered":"Fusarium Rot of Cucurbits"},"content":{"rendered":"<h3><div class=\"printfriendly pf-button  pf-alignleft\">\n                    <a href=\"https:\/\/extension.umaine.edu\/ipm\/ipddl\/publications\/5093e\/?pfstyle=wp\" rel=\"nofollow\" onclick=\"pfTrackEvent(&#039;Fusarium Rot of Cucurbits&#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 #5093<\/h3>\n<p><em>Authors: Dr. Alicyn Smart, Dr. Bruce Watt, Abigayl Novak, 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: xx-small\"><br \/>\n<\/span><\/strong><\/p>\n<h4><strong>Other Name:<\/strong> Fusarium Wilt of Cucurbits, Fusarium Fruit Rot<br \/>\n<strong>Pathogen:<\/strong><em> Fusarium solani <\/em>f.sp. <em>cucurbitae<\/em><\/h4>\n<h3>Introduction<\/h3>\n<figure id=\"18653\" class=\"wp-caption alignright\"><a href=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18653 size-medium\" src=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot-300x225.jpg\" alt=\"fruit rot on a cantaloupe\" width=\"300\" height=\"225\" srcset=\"https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot-300x225.jpg 300w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot-105x79.jpg 105w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot-317x238.jpg 317w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot-423x318.jpg 423w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot-634x476.jpg 634w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot-500x375.jpg 500w, https:\/\/extension.umaine.edu\/ipm\/wp-content\/uploads\/sites\/44\/2019\/06\/fusarium-rot.jpg 750w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,300px\" \/><\/a><figcaption class=\"wp-caption-text\">Figure 1. Progressed fruit rot on a cantaloupe. Photo by Dr. Bruce Watt.<\/figcaption><\/figure>\n<p>Fusarium Rot of Cucurbits is a fungal disease that can affect the roots, stem, and fruit, particularly pumpkins and squash. The disease consists of two different races (pathovars) &#8212; race 1 targets the stems, roots, and fruit of the plant while race 2 only targets the fruit. Cool, wet conditions tend to be the most favorable for this pathogen to grow. Infection of fruit is greatest in fruit that is in direct contact with soil. Fusarium rot can also be an opportunistic disease, infecting hosts after winter damage, fertilizer injury or a primary pathogen has weakened the plant, making it more susceptible to other pathogens.<\/p>\n<h3>Host Plants<\/h3>\n<ul>\n<li>Cucurbits (family <em>Cucurbitaceae<\/em>)<\/li>\n<\/ul>\n<h3>Management<\/h3>\n<ul>\n<li>Remove all infected plants<\/li>\n<li>Use clean seed during planting<\/li>\n<li>Rotate cucurbit crops out every 3-4 years<\/li>\n<li>Space out plants out while planting to increase airflow.<\/li>\n<li>There are no resistant varieties or effective fungicides for this disease<\/li>\n<\/ul>\n<p>You should check your local town ordinance\u00a0for any pesticide restrictions before application<\/p>\n<h3>Symptoms and Signs<\/h3>\n<p>Initial infection of the whole plant may appear as damping off during the seedling stage. Wilting may be seen during the warmest part of the day and then in the evening the plant recovers. This is because the fungi inhabit the space where water is transported, and the plant is then unable to transport sufficient amounts of water to the leaves. During the cooler temperatures of the evening, the plant can regain the turgor pressure of the leaves. Browning of the main stem at the soil line is also commonly seen and possibly a rot if found in wet conditions or a scar in dry conditions.<\/p>\n<p>Initial infection of fruit will begin where the fruit touches the soil. Infected fruit will develop lesions that are usually circular and can vary in size. The tissue beneath can be discolored and have a corky texture. As lesions develop, the coloration will progress to a whitish pink, and rot will form. Fusarium rot is initially dry and firm, but secondary organisms may cause a wet rot to form.<\/p>\n<h3>References<\/h3>\n<p>Seebold, Kenny (2010, November).\u00a0 <em>Fruit Rot of Cucurbits<\/em>.\u00a0 Retrieved from University of Kentucky \u2013 Plant Pathology Extension:\u00a0 https:\/\/plantpathology.ca.uky.edu\/files\/ppfs-vg-07.pdf<\/p>\n<p><em>Fusarium Fruit Rot.<\/em> 2013. Retrieved from University of Massachusetts Amherst Extension: https:\/\/ag.umass.edu\/vegetable\/fact-sheets\/cucurbits-fusarium-fruit-rot<\/p>\n<p>Zitter, Thomas A, Donald L. Hopkins and Claude E. Thomas.\u00a0 <em>Compendium of <\/em><em>Cucurbit Diseases<\/em>The American Phytopathological Society.\u00a0 Copyright 1996.\u00a0 Print.<\/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 2010, 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 #5093 Authors: Dr. Alicyn Smart, Dr. Bruce Watt, Abigayl Novak, 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\/. Other Name: Fusarium Wilt of Cucurbits, Fusarium Fruit Rot Pathogen: Fusarium solani f.sp. cucurbitae Introduction Fusarium Rot of Cucurbits [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":3249,"menu_order":26,"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-4601","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>Fusarium Rot of Cucurbits - Cooperative Extension: Insect Pests, Ticks and Plant Diseases - University of Maine Cooperative Extension<\/title>\n<meta name=\"description\" content=\"Fusarium Rot of Cucurbits is a fungal disease that can affect the roots, stem, and fruit, particularly pumpkins and squash. 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