{"id":1772,"date":"2022-03-18T15:46:10","date_gmt":"2022-03-18T19:46:10","guid":{"rendered":"https:\/\/site.extension.uga.edu\/worthag\/?p=1772"},"modified":"2022-03-18T16:07:00","modified_gmt":"2022-03-18T20:07:00","slug":"small-grains-update-for-3-18-22","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/worthag\/2022\/03\/small-grains-update-for-3-18-22\/","title":{"rendered":"Small Grains Update for 3\/18\/22"},"content":{"rendered":"\n<p style=\"font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 1.294), 28px);\"><strong>Small Grain Freeze Damage <\/strong><\/p>\n\n\n\n<p style=\"font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.256), 16px);\">Information from Rome Ethredge <\/p>\n\n\n\n<p>We may see freeze damage in wheat and oats grown for grain. This is what we\u2019re looking for according to the growth stage in the following chart:<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"697\" height=\"523\" src=\"https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Freeze-injury-in-wheat.png\" alt=\"\" class=\"wp-image-1773\" srcset=\"https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Freeze-injury-in-wheat.png 697w, https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Freeze-injury-in-wheat-300x225.png 300w\" sizes=\"auto, (max-width: 697px) 100vw, 697px\" \/><\/figure><\/div>\n\n\n\n<p>Most of what we have now in Georgia is in the Joint stage. When we cut the stem in half with a knife we will find the small grain head maybe 5 inches high. It will be small and if it\u2019s discolored , yellowish, mushy, has a bad smell then the grain head is affected and yield will suffer. See photo below , figure 7. See other things to look for in the above chart.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"813\" height=\"610\" src=\"https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Wheat-freeze-symptoms-Fig-7.png\" alt=\"\" class=\"wp-image-1774\" srcset=\"https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Wheat-freeze-symptoms-Fig-7.png 813w, https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Wheat-freeze-symptoms-Fig-7-300x225.png 300w, https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Wheat-freeze-symptoms-Fig-7-768x576.png 768w\" sizes=\"auto, (max-width: 813px) 100vw, 813px\" \/><\/figure><\/div>\n\n\n\n<p style=\"font-size:clamp(17.905px, 1.119rem + ((1vw - 3.2px) * 1.294), 28px);\"><strong>2022 Wheat Disease and Fungicide Update<\/strong><\/p>\n\n\n\n<p>Rome Ethredge and Alfredo Martinez-Espinoza<\/p>\n\n\n\n<ul class=\"wp-block-list\" type=\"1\"><li><strong>Foliar Diseases \u2013 <\/strong>Recent weather patterns in the southern US can contribute to the dispersal and establishment of wheat diseases.&nbsp; Critical wheat growth stages are quickly approaching; therefore, scouting of wheat fields should commence or increase if already occurring.&nbsp; Protecting the flag leaf from foliar diseases is critically important for yield preservation.&nbsp; The decision whether or not to apply a fungicide should be made by carefully weighing variety planted, yield potential, and if current environmental conditions are conducive for disease development at each specific site.&nbsp; Just this week, 3-15-22, Stripe rust has been found in a couple of southwest Georgia counties so we need to be looking closely for it. When seen from a distance it often looks like a dry area, that just looks odd.&nbsp; Here\u2019s some images from the UGA Stripe Rust brochure. <a href=\"https:\/\/secure.caes.uga.edu\/extension\/publications\/files\/pdf\/C%20960_4.PDF\">https:\/\/secure.caes.uga.edu\/extension\/publications\/files\/pdf\/C%20960_4.PDF<\/a><\/li><\/ul>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"641\" height=\"228\" src=\"https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Stripe-rust-in-wheat.jpg\" alt=\"\" class=\"wp-image-1775\" srcset=\"https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Stripe-rust-in-wheat.jpg 641w, https:\/\/site.extension.uga.edu\/worthag\/files\/2022\/03\/Stripe-rust-in-wheat-300x107.jpg 300w\" sizes=\"auto, (max-width: 641px) 100vw, 641px\" \/><\/figure><\/div>\n\n\n\n<p>Current Extension recommendations are to apply a fungicide anytime stripe or leaf rust is found in a field and when other foliar diseases (powdery mildew, stagonospora leaf\/glume blotch, tan spot) are progressing up the plant and reach two leaves below the flag leaf.&nbsp; Bear in mind that Powdery mildew tends to diminish as temperatures consistently reach above 75\u00baF&nbsp;and RH falls below 85%. Below are the fungicides available for control of foliar diseases.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li><strong>Triazoles<\/strong> \u2013 metconazole (Caramba), propiconazole (Tilt, Popimax), prothioconazole (Proline), prothioconazole + tebuconazole (Prosaro), and tebuconazole containing products (Folicur, others)<\/li><li><strong>Strobilurins<\/strong> \u2013 azoxystrobin (Quadris, Equation, Satori), fluxastrobin (Evito), picoxystrobin (Aproach), pyraclostrobin (Headline)<\/li><li><strong>Mixed mode of action<\/strong> \u2013 benzoyindiflupyr + propiconazole + azoxystrobin (Trivapro), cyproconazole + picoxystrobin (Aproach Prima), fluoxapyroxad + pyraclostrobin (Priaxor), fluoxapyroxad + pyraclostrobin + propiconazole (Nexicor), flutriafol + fluoxastrobin (Fortix, Preemptor), fluxastrobin + tebuconazole (Evito T), flutriafol + azoxystrobin (Topguard), pydiflumetofen + propiconazole (Miravis Ace), propiconazole + azoxystrobin (Quilt,&nbsp;QuiltXcel), azoxystrobin + cyproconzole (Azure Xtra),&nbsp; propiconazole + trifloxystrobin (Stratego), prothioconazole + trifloxystrobin (Stratego&nbsp;YLD, Delaro 325), pyraclostrobin + metconazole (Twinline, Multiva), tebuconazole + trifloxystrobin (Absolute, Absolute Maxx), and tebuconazole + azoxystrobin (Custodia)<\/li><\/ol>\n\n\n\n<p>A complete list of products, rates, timings, restrictions, etc. can be found on pages 49-52 of the 2021-2022 Wheat Production Guide <a href=\"https:\/\/grains.caes.uga.edu\/content\/dam\/caes-subsite\/grains\/docs\/wheat\/Wheat-Production-Guide-2021.pdf\">https:\/\/grains.caes.uga.edu\/content\/dam\/caes-subsite\/grains\/docs\/wheat\/Wheat-Production-Guide-2021.pdf<\/a> and pages 363-365 of the 2022 Georgia Pest Management Guide.&nbsp; <strong>The section in the Wheat Production Guide contains a wheat fungicide efficacy table developed by the North Central Extension and Research Committee (NCERA-184)<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li> <strong>Fusarium Head Blight\/Head Scab<\/strong> \u2013 Fusarium Head Blight requires humid\/wet weather coinciding with wheat at <strong><u>flowering<\/u> <\/strong>growth stages for infection to occur.&nbsp; There are no symptoms or signs to scout for, therefore, we rely on weather conditions and predictions. The FHB risk tool <a href=\"https:\/\/www.wheatscab.psu.edu\">https:\/\/www.wheatscab.psu.edu<\/a> <strong>is now live and available<\/strong>.&nbsp; The platform has been re-designed with new features added so it is important to familiarize yourself with the content again.&nbsp; The application window for chemical control is very tight and must occur during anthesis\/flowering.&nbsp; The following are fungicides recommended for control of FHB:  metconazole (Caramba), propiconazole (Tilt), prothioconazole (Proline), tebuconazole (Folicur), prothioconazole + tebuconazole (Prosaro), pydiflumetofen + propiconazole (Miravis Ace)<\/li><\/ul>\n\n\n\n<p>More information on FHB can be found in the extension publication C1066 <a href=\"https:\/\/extension.uga.edu\/publications\/detail.html?number=C1066\">https:\/\/extension.uga.edu\/publications\/detail.html?number=C1066<\/a> or on page 51 of the 2021-2022 Wheat Production Guide and page 365 of the Georgia Pest Management Handbook 2022.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Small Grain Freeze Damage Information from Rome Ethredge We may see freeze damage in wheat and oats grown for grain. This is what we\u2019re looking for according to the growth stage in the following chart: Most of what we have now in Georgia is in the Joint stage. When we cut the stem in half [&hellip;]<\/p>\n","protected":false},"author":276,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,6,29,28],"tags":[],"class_list":["post-1772","post","type-post","status-publish","format-standard","hentry","category-agronomics","category-plant-pathology","category-small-grains","category-weather"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/1772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/users\/276"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/comments?post=1772"}],"version-history":[{"count":5,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/1772\/revisions"}],"predecessor-version":[{"id":1794,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/1772\/revisions\/1794"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/media?parent=1772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/categories?post=1772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/tags?post=1772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}