{"id":26509,"date":"2023-04-28T01:02:37","date_gmt":"2023-04-28T01:02:37","guid":{"rendered":"https:\/\/aes.colostate.edu\/wcrc\/?page_id=26509"},"modified":"2024-04-05T18:48:20","modified_gmt":"2024-04-05T18:48:20","slug":"seed-corn-maggot","status":"publish","type":"page","link":"https:\/\/aes.colostate.edu\/wcrc\/rogers-mesa\/seed-corn-maggot\/","title":{"rendered":"Addressing the Pest: Seed Corn Maggot in Sweet Corn"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.20.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row column_structure=&#8221;2_5,3_5&#8243; _builder_version=&#8221;4.20.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;2_5&#8243; _builder_version=&#8221;4.20.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_sidebar area=&#8221;et_pb_widget_area_11&#8243; _builder_version=&#8221;4.20.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_sidebar][\/et_pb_column][et_pb_column type=&#8221;3_5&#8243; _builder_version=&#8221;4.20.0&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.20.0&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;||1%||false|false&#8221; global_module=&#8221;23371&#8243; saved_tabs=&#8221;all&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n\t\t<div style=\"width: 146px; height: 8px; max-width: 100%; position: relative;\">\n\t\t\t<svg\n                width=\"100%\"\n                height=\"100%\"\n                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                x=\"0\" y=\"0\"\n                viewBox=\"0 0 145.1 8\"\n                xml:space=\"preserve\"\n                style=\"position: absolute; top: 0\"\n            >\n\t\t\t\t<path\n\t\t\t\t\td=\"M144.1 4c-3.6 3.3-10.7 3.3-14.3 0S119.1.7 115.5 4s-10.7 3.3-14.3 0S90.4.7 86.9 4 76.1 7.3 72.6 4 61.8.7 58.3 4 47.5 7.3 43.9 4 33.2.7 29.6 4 18.9 7.3 15.3 4 4.6.7 1 4\"\n\t\t\t\t\tfill=\"none\"\n\t\t\t\t\tstroke=\"#f15727\"\n\t\t\t\t\tstroke-width=\"3\"\n\t\t\t\t\/>\n\t\t\t<\/svg>\n\t\t<\/div>\n\t\t\n<p>[\/et_pb_text][et_pb_text _builder_version=&#8221;4.20.0&#8243; _module_preset=&#8221;default&#8221; header_font_size=&#8221;36px&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<h1>Addressing the Pest: Seed Corn Maggot in Sweet Corn<\/h1>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_text _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<\/p>\n<p>The Seed Corn maggot (SCM) (Delia platura) is a serious pest of many horticultural and agronomic crops worldwide. The larvae feed on seed before and during germination and emergence, killing or stunting the plant and exposing it to secondary infections. The host range of D. platura includes the seed of legumes, cucurbits, Allium species, decomposing plant material, and sweet corn. SCM is common in Western Colorado, especially in sweet corn production. The acreage of conventionally grown sweet corn in Colorado has declined in recent years as other production regions become more competitive. Conversely, demand for organic sweet corn continues to flourish and offers growers a lucrative market. Seed treatment with insecticides is a common and effective method used in conventional agriculture. However, conventional seed treatment materials are not allowed in certified organic production. For organic sweet corn to continue to be a profitable and productive avenue for Colorado growers, more effective control of SCM is imperative. Identifying organic methods to mitigate the damage by SCM will not only benefit Colorado sweet corn growers but also growers of other crops that are within the host range of SCM.<\/p>\n<p>We performed trapping during the 2022 growing season to assess the lifecycle of D. platura adults.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=&#8221;1_3,1_3,1_3&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; background_color=&#8221;#F1F1F1&#8243; custom_padding=&#8221;|3%||3%|false|true&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/aes.colostate.edu\/wcrc\/wp-content\/uploads\/sites\/147\/2024\/03\/delia-trap-graph-1080&#215;700-1.jpg&#8221; alt=&#8221;Delia spp. trap counts from three sites west of Olathe, CO.  Three traps were set up within ~5-acre areas at three sites.  Delia species were identified using visual identification protocols as described in Data Collection.  All Delia spp. identified from the three traps were summed to obtain a single data point per 5-acre location.  Traps were collected weekly or bi-weekly.  The red shaded areas indicate a hypothesized new generation emerging of Delia. &#8221; title_text=&#8221;delia-trap-graph-1080&#215;700&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; border_width_top=&#8221;4px&#8221; border_color_top=&#8221;#F15625&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/aes.colostate.edu\/wcrc\/wp-content\/uploads\/sites\/147\/2024\/03\/Delia-platura-microscope-1080&#215;700-1.jpg&#8221; alt=&#8221;Delia platura identified visually under 10X dissecting microscope. &#8221; title_text=&#8221;Delia platura-microscope-1080&#215;700&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; border_width_top=&#8221;4px&#8221; border_color_top=&#8221;#F15625&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_image src=&#8221;https:\/\/aes.colostate.edu\/wcrc\/wp-content\/uploads\/sites\/147\/2024\/03\/SCM-larvae-1080&#215;700-1.jpg&#8221; alt=&#8221;SCM larvae found within emerged sweet corn seedling &#8221; title_text=&#8221;SCM larvae-1080&#215;700&#8243; _builder_version=&#8221;4.24.2&#8243; _module_preset=&#8221;default&#8221; border_width_top=&#8221;4px&#8221; border_color_top=&#8221;#F15625&#8243; global_colors_info=&#8221;{}&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\t\t<div style=\"width: 146px; height: 8px; max-width: 100%; position: relative;\">\n\t\t\t<svg\n                width=\"100%\"\n                height=\"100%\"\n                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                x=\"0\" y=\"0\"\n                viewBox=\"0 0 145.1 8\"\n                xml:space=\"preserve\"\n                style=\"position: absolute; top: 0\"\n            >\n\t\t\t\t<path\n\t\t\t\t\td=\"M144.1 4c-3.6 3.3-10.7 3.3-14.3 0S119.1.7 115.5 4s-10.7 3.3-14.3 0S90.4.7 86.9 4 76.1 7.3 72.6 4 61.8.7 58.3 4 47.5 7.3 43.9 4 33.2.7 29.6 4 18.9 7.3 15.3 4 4.6.7 1 4\"\n\t\t\t\t\tfill=\"none\"\n\t\t\t\t\tstroke=\"#f15727\"\n\t\t\t\t\tstroke-width=\"3\"\n\t\t\t\t\/>\n\t\t\t<\/svg>\n\t\t<\/div>\n\t\t Addressing the Pest: Seed Corn Maggot in Sweet CornThe Seed Corn maggot (SCM) (Delia platura) is a serious pest of many horticultural and agronomic crops worldwide. The larvae feed on seed before and during germination and emergence, killing or stunting the plant and exposing it to secondary infections. The host range of D. platura [&hellip;]<\/p>\n","protected":false},"author":280,"featured_media":0,"parent":25212,"menu_order":11,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-26509","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Addressing the Pest: Seed Corn Maggot in Sweet Corn<\/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:\/\/aes.colostate.edu\/wcrc\/rogers-mesa\/seed-corn-maggot\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Addressing the Pest: Seed Corn Maggot in Sweet Corn\" \/>\n<meta property=\"og:description\" content=\"Addressing the Pest: Seed Corn Maggot in Sweet CornThe Seed Corn maggot (SCM) (Delia platura) is a serious pest of many horticultural and agronomic crops worldwide. The larvae feed on seed before and during germination and emergence, killing or stunting the plant and exposing it to secondary infections. 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