{"id":3342,"date":"2019-05-06T14:37:35","date_gmt":"2019-05-06T18:37:35","guid":{"rendered":"http:\/\/blog.uvm.edu\/hoppenin\/?p=3342"},"modified":"2019-05-06T14:37:35","modified_gmt":"2019-05-06T18:37:35","slug":"crowning-and-early-season-downy-mildew-control","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/hoppenin\/2019\/05\/06\/crowning-and-early-season-downy-mildew-control\/","title":{"rendered":"Crowning and Early Season Downy Mildew Control"},"content":{"rendered":"\n<p><br \/><\/p>\n\n\n\n<p>Hop downy mildew is&nbsp;currently\nthe&nbsp;biggest disease concern for Northeastern hop growers. &nbsp;Downy\nmildew overwinters in the hop crown and primary inoculum will be released from\nthe first shoots. Removal of the infected crown or the first flush of spring hop\ngrowth&nbsp;is called \u201ccrowning\u201d or \u201cscratching\u201d. Shoot removal is used as an\nearly season preventative measure against downy mildew and&nbsp;as a way of\nmanaging&nbsp;harvest time.&nbsp;&nbsp;Hop plants have been budding out for a few\nweeks now in Vermont and likely most crowning has already occurred. However,\nscratching or removal of new growth can still be done and may further eliminate\ninfected plant material. Below are some basic tips for crowning and scratching\nfor our region.<\/p>\n\n\n\n<p>1st year hop yards should not be\ncrowned to allow for root establishment.<\/p>\n\n\n\n<p>2nd&nbsp;year hop&nbsp;yards should\nbe crowned if downy mildew was a problem last season.<\/p>\n\n\n\n<p>3rd&nbsp;year hop&nbsp;yards should\nbe crowned if it can be done in April or very early May.<\/p>\n\n\n\n<p>For early season shoot removal any\nof the following three methods have been used with success in the Northeast.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"535\" height=\"400\" src=\"https:\/\/blog.uvm.edu\/hoppenin\/files\/2019\/05\/downy-mildew-pic1.jpg\" alt=\"\" class=\"wp-image-3343\" srcset=\"https:\/\/blog.uvm.edu\/hoppenin\/files\/2019\/05\/downy-mildew-pic1.jpg 535w, https:\/\/blog.uvm.edu\/hoppenin\/files\/2019\/05\/downy-mildew-pic1-300x224.jpg 300w\" sizes=\"auto, (max-width: 535px) 100vw, 535px\" \/><\/figure>\n\n\n\n<p>1. Mechanically cutting and removing the shoots. <\/p>\n\n\n\n<figure class=\"wp-block-image is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/blog.uvm.edu\/hoppenin\/files\/2019\/05\/downy-mildew-pic2.jpg\" alt=\"\" class=\"wp-image-3345\" width=\"484\" height=\"363\" srcset=\"https:\/\/blog.uvm.edu\/hoppenin\/files\/2019\/05\/downy-mildew-pic2.jpg 503w, https:\/\/blog.uvm.edu\/hoppenin\/files\/2019\/05\/downy-mildew-pic2-300x225.jpg 300w\" sizes=\"auto, (max-width: 484px) 100vw, 484px\" \/><\/figure>\n\n\n\n<p>2. Flaming after first flush of growth and shoot emergence. <\/p>\n\n\n\n<p>3. Herbicide\napplication. Make sure any pesticide used in your hop yard is labeled for use\nin your state and on hops. <\/p>\n\n\n\n<p>Since 2014, UVM has been researching the impact of crowning on hop yield and quality. Check out our <a href=\"https:\/\/www.uvm.edu\/sites\/default\/files\/media\/2018_Crowning_Report_Updated.pdf\">Hop Crowning Trial final report update<\/a> to learn more our results.<\/p>\n\n\n\n<p>Crowning was done in the hop yard\nat Borderview Research Farm in Alburgh, VT on April 25, 2019.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hop downy mildew is&nbsp;currently the&nbsp;biggest disease concern for Northeastern hop growers. &nbsp;Downy mildew overwinters in the hop crown and primary inoculum will be released from the first shoots. Removal of the infected crown or the first flush of spring hop growth&nbsp;is called \u201ccrowning\u201d or \u201cscratching\u201d. Shoot removal is used as an early season preventative measure &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/blog.uvm.edu\/hoppenin\/2019\/05\/06\/crowning-and-early-season-downy-mildew-control\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Crowning and Early Season Downy Mildew Control&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1000,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[1],"tags":[56152,36691,160318],"class_list":["post-3342","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-crowning","tag-downy-mildew","tag-hop-crowning","entry"],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"hoppenin","author_link":"https:\/\/blog.uvm.edu\/hoppenin\/author\/hoppenin\/"},"_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts\/3342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/users\/1000"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/comments?post=3342"}],"version-history":[{"count":2,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts\/3342\/revisions"}],"predecessor-version":[{"id":3346,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/posts\/3342\/revisions\/3346"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/media?parent=3342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/categories?post=3342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/hoppenin\/wp-json\/wp\/v2\/tags?post=3342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}