{"id":580,"date":"2010-02-05T10:45:51","date_gmt":"2010-02-05T15:45:51","guid":{"rendered":"https:\/\/extension.umaine.edu\/cranberries\/?page_id=580"},"modified":"2019-02-06T21:12:11","modified_gmt":"2019-02-06T21:12:11","slug":"april","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/april\/","title":{"rendered":"April (Maine Cranberry Management Calendar)"},"content":{"rendered":"<ul>\n<li><strong>Frost Protection:<\/strong> Know the\u00a0<a href=\"https:\/\/extension.umaine.edu\/cranberries\/site-map\/frost-tolerances\/\">tolerance levels<\/a> for your variety or varieties, and monitor your bud stage throughout the month\u00a0(use the bud stage that the majority of your vines are showing).<\/li>\n<li><strong>Mid to Late April: <\/strong>Pre-emergence herbicides need to be applied before cranberry vines break dormancy. For a list of herbicides, and individual target weeds, check the weeds portion of the\u00a0<a href=\"https:\/\/extension.umaine.edu\/cranberries\/site-map\/cranberry-ipm-guide\/\">Maine Cranberry Pest Management Guide<\/a>.<\/li>\n<li><strong>Late April: <\/strong><a href=\"https:\/\/extension.umaine.edu\/cranberries\/wp-content\/uploads\/sites\/40\/2010\/05\/LateWater.doc\">Late-Water Flood (MS Word)<\/a> | <a href=\"https:\/\/extension.umaine.edu\/cranberries\/wp-content\/uploads\/sites\/40\/2010\/05\/LateWater.pdf\">Late-Water Flood (pdf)<\/a>.\u00a0Do not apply this flood if the buds have broken dormancy, or if the winter has been severely cold and long, oxygen deficiency conditions are suspected, or if the bed has been sanded since the preceding fall. The flood provides very good control of fruit rot fungi, boosts keeping quality, and kills overwintering <a href=\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/insects\/cranberry-fruitworm\/\">Cranberry Fruitworm<\/a> and may eliminate the need for sprays for this insect during the Late-water year\u00a0(Expect 90% or more Cranberry Fruitworm control if the flood is held for four weeks, 40-50%\u00a0control if less than four weeks); virtually wipes out Southern Red Mite infestations and may suppress <a href=\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/insects\/false-armyworm\/\">False Armyworm<\/a> and <a href=\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/insects\/gypsy-moth\/\">Gypsy Moth<\/a> larval populations; can delay the development of weeds (suppresses growth of some perennials, most notably brambles; the flood does <em>not<\/em> control <a href=\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/weeds\/list-of-maine-cranberry-weeds\/dodder\/\">dodder<\/a>)<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Frost Protection: Know the\u00a0tolerance levels for your variety or varieties, and monitor your bud stage throughout the month\u00a0(use the bud stage that the majority of your vines are showing). Mid to Late April: Pre-emergence herbicides need to be applied before cranberry vines break dormancy. For a list of herbicides, and individual target weeds, check the [&hellip;]<\/p>\n","protected":false},"author":60,"featured_media":0,"parent":574,"menu_order":3,"comment_status":"closed","ping_status":"closed","template":"templates\/page-withsidebar.php","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-580","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>April (Maine Cranberry Management Calendar) - Cooperative Extension: Cranberries - 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\/cranberries\/grower-services\/cranberry-management-calendar\/april\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"April (Maine Cranberry Management Calendar) - Cooperative Extension: Cranberries - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Frost Protection: Know the\u00a0tolerance levels for your variety or varieties, and monitor your bud stage throughout the month\u00a0(use the bud stage that the majority of your vines are showing). Mid to Late April: Pre-emergence herbicides need to be applied before cranberry vines break dormancy. For a list of herbicides, and individual target weeds, check the [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/april\/\" \/>\n<meta property=\"og:site_name\" content=\"Cooperative Extension: Cranberries\" \/>\n<meta property=\"article:modified_time\" content=\"2019-02-06T21:12:11+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/april\/\",\"url\":\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/april\/\",\"name\":\"April (Maine Cranberry Management Calendar) - Cooperative Extension: Cranberries - University of Maine Cooperative Extension\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/cranberries\/#website\"},\"datePublished\":\"2010-02-05T15:45:51+00:00\",\"dateModified\":\"2019-02-06T21:12:11+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/april\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/april\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/april\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/extension.umaine.edu\/cranberries\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Grower Services\",\"item\":\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Maine Cranberry Management Calendar\",\"item\":\"https:\/\/extension.umaine.edu\/cranberries\/grower-services\/cranberry-management-calendar\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"April (Maine Cranberry Management Calendar)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/extension.umaine.edu\/cranberries\/#website\",\"url\":\"https:\/\/extension.umaine.edu\/cranberries\/\",\"name\":\"Cooperative Extension: Cranberries\",\"description\":\"Information you can use. 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