Anthracnose is not a significant threat to the health of the tree and doesn\u2019t require treatment in most cases.<\/li>\n<\/ul>\n <\/p>\n","protected":false},"excerpt":{"rendered":"
Question: Our maple trees have big black spots on the leaves. My guess is it’s a fungus; is that likely?\u00a0 For now, assuming it’s a fungus, what’s the best product to treat it with? The maples are fairly new and small, so spraying would be possible. Answer: Kate Garland, Horticulturist From what I can see, […]<\/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-22374","post","type-post","status-publish","format-standard","hentry","category-ask","category-pests"],"yoast_head":"\n
What is causing our maple trees to have black spots on the leaves? - 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\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is causing our maple trees to have black spots on the leaves? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Question: Our maple trees have big black spots on the leaves. My guess is it’s a fungus; is that likely?\u00a0 For now, assuming it’s a fungus, what’s the best product to treat it with? The maples are fairly new and small, so spraying would be possible. Answer: Kate Garland, Horticulturist From what I can see, […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/extension.umaine.edu\/gardening\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/\" \/>\n<meta property=\"og:site_name\" content=\"Cooperative Extension: Garden and Yard\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-11T12:33:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-11T12:34:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/extension.umaine.edu\/gardening\/wp-content\/uploads\/sites\/5\/2023\/07\/AskanExpertOakJuly2023-300x225.jpg\" \/>\n<meta name=\"author\" content=\"twood\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"twood\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/\"},\"author\":{\"name\":\"twood\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518\"},\"headline\":\"What is causing our maple trees to have black spots on the leaves?\",\"datePublished\":\"2023-07-11T12:33:45+00:00\",\"dateModified\":\"2023-07-11T12:34:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/\"},\"wordCount\":193,\"image\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/extension.umaine.edu\/gardening\/wp-content\/uploads\/sites\/5\/2023\/07\/AskanExpertOakJuly2023-300x225.jpg\",\"articleSection\":[\"Ask the Expert\",\"Managing Insect, Diseases, and Animal Pests\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/\",\"url\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/07\/11\/what-is-causing-our-maple-trees-to-have-black-spots-on-the-leaves\/\",\"name\":\"What is causing our maple trees to have black spots on the leaves? 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