{"id":1697,"date":"2022-09-12T08:11:38","date_gmt":"2022-09-12T16:11:38","guid":{"rendered":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/?p=1697"},"modified":"2022-09-12T08:11:38","modified_gmt":"2022-09-12T16:11:38","slug":"corn-earworm-population-dynamics","status":"publish","type":"post","link":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/2022\/09\/12\/corn-earworm-population-dynamics\/","title":{"rendered":"Corn earworm population dynamics"},"content":{"rendered":"\n<p>Pleased to announce I was invited to participate in a nationwide analysis of <a href=\"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/pest-profiles\/corn-earworm\/\" data-type=\"URL\" data-id=\"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/pest-profiles\/corn-earworm\/\" target=\"_blank\" rel=\"noreferrer noopener\">corn earworm<\/a> trends. This new study from Dr. Lawton (NC State) et al. takes a look at decades-long trapping and soil temperature data to provide some insight into overwintering potential of <em>H. zea<\/em>, and how we might use models to predict pest abundance. Highlights from <a rel=\"noreferrer noopener\" href=\"https:\/\/www.pnas.org\/doi\/suppl\/10.1073\/pnas.2203230119\" target=\"_blank\">the article<\/a>:<\/p>\n\n\n\n<!--more-->\n\n\n\n<ul class=\"wp-block-list\"><li><em>H. zea<\/em> population dynamics are hierarchically structured with continental-level effects that are partitioned into three geographic zones. <\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>A 40-year averaged overwintering suitability map was constructed based on remotely sensed soil temperature and it projected the transitional zone to be largest in area; Western Oregon fluctuated between the transitional zone and the southern range, depending on year.<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>Because <em>H. zea<\/em> is a highly migratory pest, predicting when populations accumulate in one region can inform synchronous or lagged population development in other regions.<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>It is generally accepted that <em>H. zea<\/em> does not overwinter above 40\u00b0N latitude, but this new analysis suggests that range is more fluid and depends instead on soil temperatures.<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>Greater overwintering survival may expand the range of a serious insect pest.<\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li>The authors acknowledge that regional within-season factors (precipitation, IPM strategies, agronomic practices, etc.) also influence population dynamics.  <\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-jetpack-slideshow aligncenter\" data-effect=\"fade\"><div class=\"wp-block-jetpack-slideshow_container swiper-container\"><ul class=\"wp-block-jetpack-slideshow_swiper-wrapper swiper-wrapper\"><li class=\"wp-block-jetpack-slideshow_slide swiper-slide\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"537\" alt=\"\" class=\"wp-block-jetpack-slideshow_image wp-image-1700\" data-id=\"1700\" src=\"https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub14to16.jpg?resize=770%2C537&#038;ssl=1\" srcset=\"https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub14to16.jpg?resize=1024%2C714&amp;ssl=1 1024w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub14to16.jpg?resize=300%2C209&amp;ssl=1 300w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub14to16.jpg?resize=768%2C536&amp;ssl=1 768w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub14to16.jpg?resize=1536%2C1071&amp;ssl=1 1536w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub14to16.jpg?w=1683&amp;ssl=1 1683w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/figure><\/li><li class=\"wp-block-jetpack-slideshow_slide swiper-slide\"><figure><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"770\" height=\"532\" alt=\"\" class=\"wp-block-jetpack-slideshow_image wp-image-1701\" data-id=\"1701\" src=\"https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub18to20.jpg?resize=770%2C532&#038;ssl=1\" srcset=\"https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub18to20.jpg?resize=1024%2C708&amp;ssl=1 1024w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub18to20.jpg?resize=300%2C207&amp;ssl=1 300w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub18to20.jpg?resize=768%2C531&amp;ssl=1 768w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub18to20.jpg?resize=1536%2C1062&amp;ssl=1 1536w, https:\/\/i0.wp.com\/osu-wams-blogs-uploads.s3.amazonaws.com\/blogs.dir\/2847\/files\/2022\/09\/CEWpub18to20.jpg?w=1685&amp;ssl=1 1685w\" sizes=\"(max-width: 770px) 100vw, 770px\" \/><\/figure><\/li><\/ul><a class=\"wp-block-jetpack-slideshow_button-prev swiper-button-prev swiper-button-white\" role=\"button\"><\/a><a class=\"wp-block-jetpack-slideshow_button-next swiper-button-next swiper-button-white\" role=\"button\"><\/a><a aria-label=\"Pause Slideshow\" class=\"wp-block-jetpack-slideshow_button-pause\" role=\"button\"><\/a><div class=\"wp-block-jetpack-slideshow_pagination swiper-pagination swiper-pagination-white\"><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<h5 class=\"has-text-align-center wp-block-heading\">Lawton, D., et al. (2022). &#8220;Pest population dynamics are related to a continental overwintering gradient.&#8221; Proceedings of the National Academy of Sciences 119(37): DOI: <a href=\"https:\/\/www.pnas.org\/doi\/suppl\/10.1073\/pnas.2203230119\">10.1073\/pnas.2203230119<\/a><\/h5>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pleased to announce I was invited to participate in a nationwide analysis of corn earworm trends. This new study from Dr. Lawton (NC State) et al. takes a look at decades-long trapping and soil temperature data to provide some insight into overwintering potential of H. zea, and how we might use models to predict pest&hellip; <a href=\"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/2022\/09\/12\/corn-earworm-population-dynamics\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":8003,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1252081,1252505,1254501,1254491],"tags":[],"class_list":["post-1697","post","type-post","status-publish","format-standard","hentry","category-corn-earworm","category-degree-days","category-migration","category-monitoring"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8vBJ4-rn","_links":{"self":[{"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/posts\/1697","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/users\/8003"}],"replies":[{"embeddable":true,"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/comments?post=1697"}],"version-history":[{"count":7,"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/posts\/1697\/revisions"}],"predecessor-version":[{"id":1706,"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/posts\/1697\/revisions\/1706"}],"wp:attachment":[{"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/media?parent=1697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/categories?post=1697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agsci-labs.oregonstate.edu\/vegnet\/wp-json\/wp\/v2\/tags?post=1697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}