{"id":19923,"date":"2022-06-15T15:07:37","date_gmt":"2022-06-15T19:07:37","guid":{"rendered":"https:\/\/extension.umaine.edu\/gardening\/?p=19923"},"modified":"2022-06-15T15:12:02","modified_gmt":"2022-06-15T19:12:02","slug":"what-is-causing-the-white-pines-to-turn-brown-in-my-neighborhood","status":"publish","type":"post","link":"https:\/\/extension.umaine.edu\/gardening\/2022\/06\/15\/what-is-causing-the-white-pines-to-turn-brown-in-my-neighborhood\/","title":{"rendered":"What is causing the white pines to turn brown in my neighborhood?"},"content":{"rendered":"

Question:<\/h3>\n

I have noticed that many white pines in my neighborhood are turning brown. They are not near traffic (so not salt) and are very old white pines. What may be causing this? They are turning completely brown, not just dropping seasonal needles.\u00a0<\/strong><\/p>\n

Answer:<\/h3>\n

Vi\u00f1a Lindley, Food Systems & Home Horticulture Professional<\/em><\/p>\n

\n
\n
Thank you for your question.\u00a0 Your observation about the white pines in your neighborhood suffering premature needle loss is, unfortunately, an issue that we’ve been hearing about from many parts of the state.\u00a0 According to the Maine Forest Service, the damage is likely caused by white pine needle damage disease complex (WPND) and results in pine needles prematurely turning brown and dropping off otherwise healthy trees.\u00a0 As the name suggests, there are four different organisms causing the damage.\u00a0 The conditions that favor their establishment are prolonged periods of wet weather in the spring during the time that the pines needles are elongating.\u00a0 The symptoms don’t present until the following year, which helps explain why we’re seeing so much damage but haven’t had a wet spring.\u00a0 The spore-producing structures erupt from infected needles the year after they initially become established, which then infect the current year’s new growth and the cycle keeps repeating.\u00a0 It is possible that the on-going drought conditions are actually making things worse, because the trees are generally less able to combat disease pressures when they are also stressed by lack of water.\u00a0 The good news is that if there are green tips and candles the tree\/s will survive and produce more needles but it will look thin and wispy for this season.\u00a0 If the tree\/s are not showing signs of new growth then, in all likelihood, they will not survive.\u00a0 While fungicidal application is an option it would probably be impractical to try to apply a fungicide in very large, old trees.<\/div>\n

Here is a fact sheet about WPND<\/a> for more information.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Question: I have noticed that many white pines in my neighborhood are turning brown. They are not near traffic (so not salt) and are very old white pines. What may be causing this? They are turning completely brown, not just dropping seasonal needles.\u00a0 Answer: Vi\u00f1a Lindley, Food Systems & Home Horticulture Professional Thank you for […]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","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":""},"categories":[199,204],"tags":[],"class_list":["post-19923","post","type-post","status-publish","format-standard","hentry","category-ask","category-pests"],"yoast_head":"\nWhat is causing the white pines to turn brown in my neighborhood? - Cooperative Extension: Garden and Yard - 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\/gardening\/2022\/06\/15\/what-is-causing-the-white-pines-to-turn-brown-in-my-neighborhood\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is causing the white pines to turn brown in my neighborhood? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Question: I have noticed that many white pines in my neighborhood are turning brown. 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