{"id":4097,"date":"2026-08-28T16:28:18","date_gmt":"2026-08-28T20:28:18","guid":{"rendered":"https:\/\/site.extension.uga.edu\/applingcrop\/?p=4097"},"modified":"2026-08-28T16:28:18","modified_gmt":"2026-08-28T20:28:18","slug":"appling-county-agronomic-row-crops-update-8-28-26","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/applingcrop\/2026\/08\/appling-county-agronomic-row-crops-update-8-28-26\/","title":{"rendered":"Appling County Agronomic Row Crops Update &#8211; 8\/28\/26"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">We are quickly approaching the end of this years row crop season. So, most of this email is about finalizing managing this crop. It will soon be time to start blasting pods for maturity checks so give me a call and we will plan out some times to get those done together. Spider mites have cooled off this week after many fields were treated and some rain showers were caught. Jassid has really picked up in the lower end of Appling County on late planted cotton, so far I have not seen anything North of 203 that has reached the threshold for Jassid. I am beginning to to see some White Mold and Leaf Spot in peanut fields, although where I am seeing the disease we are doing a good job keeping it contained by staying timely with our fungicide applications. I conducted TSWV Field surveys in peanut fields over the week and ratings ranged from 0-3% TSWV. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Topics in this Update: <\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reminder! Southeastern Gin and Peanut Harvest Meeting<\/strong><\/li>\n\n\n\n<li><strong>Finalizing Cotton Irrigation<\/strong> <strong>(Dr. Wes Porter, UGA Precision Ag and Irrigation Specialist)<\/strong><\/li>\n\n\n\n<li><strong>Finalizing Peanut Fungicide Programs<\/strong> <strong>(Dr. Bob Kemerait, UGA Plant Pathologist)<\/strong><\/li>\n\n\n\n<li><strong>Soybean Harvest Aids, Classic\/Florida Beggarweed\/Peanuts (Dr. Eric Prostko, UGA Weed Specialist)<\/strong><\/li>\n\n\n\n<li><strong>UNDERSTANDING SOYBEAN GROWTH STAGES<\/strong> <strong>(Dr. Nick Shay, UGA Grains Agronomist)<\/strong><\/li>\n\n\n\n<li><strong>All About The Pod<\/strong> <strong>Podcast (UGA Peanut Team)<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Reminder! Southeastern Gin and Peanut Harvest Meeting<\/strong><\/p>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/2026-harvest-meeting-flyer-1.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"Embed of 2026 harvest meeting flyer.\"><\/object><a id=\"wp-block-file--media-7e659c06-89e8-40a6-8a96-ad5cb00bedb1\" href=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/2026-harvest-meeting-flyer-1.pdf\">2026 harvest meeting flyer<\/a><a href=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/2026-harvest-meeting-flyer-1.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-7e659c06-89e8-40a6-8a96-ad5cb00bedb1\">Download<\/a><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Finalizing Cotton Irrigation<\/strong> <strong>(Dr. Wes Porter, UGA Precision Ag and Irrigation Specialist)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We have been experiencing extreme heat and dry conditions throughout portions of the state, but our crops are moving along, and it\u2019s getting close to the time to start thinking about how to finish out the season. This post goes into more detail about finalizing cotton irrigation. If you have specific questions feel free to reach out.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/precisionagirrigation.extension.uga.edu\/2026\/08\/end-of-season-cotton-irrigation-management\/\">End of Season \u2013 Cotton Irrigation Management | Extension Precision Ag and Irrigation<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Finalizing Peanut Fungicide Programs<\/strong> <strong>(Dr. Bob Kemerait, UGA Plant Pathologist)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One more week of the \u201cdog days of August\u201d, but then, it seems, the \u201cdog days\u201d continue into September.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I was asked yesterday to give a refresher on late season peanut fungicide applications this morning. &nbsp;Tough to do in a brief email, but here goes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1. When considering \u201cpre-harvest\u201d intervals for peanuts, some define harvest as \u201cdigging date\u201d. &nbsp;I define it as \u201cpicking date\u201d. Why does it matter? It may give a grower more options on what can be used.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 1- two weeks or less until projected digging? &nbsp;The die is cast. You are done. A fungicide now is either too little, too late, or not needed. Or not enough time left to matter. &nbsp;This goes for leaf spot and white mold.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 2- three weeks until projected digging and all looks good. &nbsp;Little to no leaf spot or white mold? &nbsp;Good job! You are done. Stick a fork in it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 3- three weeks until projected Digging. White mold is not an issue, but you have been facing leaf spot. It\u2019s under control, but you are concerned. Use some combination of chlorothalonil + something else with systemic activity. &nbsp;That could be something like Tetraconazole (Domark) or thiophanate methyl (Topsin). &nbsp; Alto (cyproconazole) is an effective measure when you have 40 or more days until picking. &nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 4- three weeks until projected digging and losing leaves right and left to leaf spot. Honestly, at this point, it is likely too late for any fungicide to help, even to \u201cbuy me some time\u201d. &nbsp;The die is cast. If you insist on spraying, look at scenario 3. But are you wasting money? &nbsp;In scenario 4, you may need to dig early to avoid excessive harvest losses. When defoliation gets beyond 50%, the pods start to abandon ship.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 5- three weeks to go until projected digging. &nbsp;White mold is present, but suppressed. I would put something about to keep it quiet. That may be some teb with chlorothalonil. It may be some azoxy with chlorothalonil. It may be some Prothio. Something. Cheaper.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 6- three weeks to go and white mold is off the chain. Houston\u2026\u2026. It is a tough situation. Will the cost of a better fungicide pay for itself? How much time is left? &nbsp;Answer- with three weeks to go, I would not, could not, invest in top-tier white mold products, but I would use some combination thst includes prothioconazole. If my budget is shot, put out full rates of teb or azoxy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 6-. Three weeks to go and leaf spot and white mold control are good but there is beaucoup mater wilt virus. Stay the course. Do not dig early for tomato spotted wilt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 7- four weeks or so to go: no disease problem? Something like Chlorothalonil or teb-chlorothalonil to keep the disease honest<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 7- four weeks or so to go and leaf spot and\/or white mold is a threat &nbsp;&#8211; consider use of any fungicides. Even top-tier, based on threat vs yield potential vs cost<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Scenario 8- four or so weeks to go and disease has gone wild? Take a deep breath, consider digging dates, don\u2019t throw money at a problem money won\u2019t fix.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Soybean Harvest Aids, Classic\/Florida Beggarweed\/Peanuts (Dr. Eric Prostko, UGA Weed Specialist)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">&nbsp;<strong><u>1) A few comments about soybean harvest aids\/desiccants:<\/u><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a) General consensus among soybean specialists these days is to wait until&nbsp;<strong><em><u>R7 stage<\/u><\/em><\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) I&nbsp;have already written several blogs about this topic<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">c)&nbsp;A good\/recent article from the University of Arkansas (<a href=\"https:\/\/arkansascrops.uada.edu\/posts\/harvest\/soybean-harvest-aids-2025.aspx\">https:\/\/arkansascrops.uada.edu\/posts\/harvest\/soybean-harvest-aids-2025.aspx<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d)&nbsp;Soybean stages of growth<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/crops.extension.iastate.edu\/encyclopedia\/soybean-growth-stages\">https:\/\/crops.extension.iastate.edu\/encyclopedia\/soybean-growth-stages<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/extension.msstate.edu\/sites\/default\/files\/publications\/P4028_web.pdf\">https:\/\/extension.msstate.edu\/sites\/default\/files\/publications\/P4028_web.pdf<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">e)&nbsp;Check out Pages 266-267 in 2026 UGA Pest Control Handbook (<a href=\"https:\/\/fieldreport.caes.uga.edu\/wp-content\/uploads\/2025\/02\/SB28-28.pdf\">https:\/\/fieldreport.caes.uga.edu\/wp-content\/uploads\/2025\/02\/SB28-28.pdf<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em><u>2) Classic\/Florida Beggarweed\/Peanut:<\/u><\/em><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a) I have been getting a ton of questions about the use of Classic for the late-season control control of Florida beggarweed in peanut.&nbsp; &#8220;Control&#8221; is probably not a great word to use in this situation because in reality, late-season applications of Classic really do not provide &#8220;control&#8221; in the normal sense of the word but do help improve fungicide deposition and harvestabilty.&nbsp;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b) Expectations for the success of Classic at this time are dependent on the size of the Florida beggarweed plants that get treated.&nbsp; Simply, the bigger the plants, the less effective Classic will be.&nbsp; I recently applied Classic + 2,4-DB to one of my peanut fields to get a better feel on what actually happens.&nbsp; Basically, the Florida beggarweed plants were stopped in their tracks at the time of application.&nbsp; What this means is that beggarweed plants that were at or slightly above the peanut canopy are now not effecting fungicide deposition.&nbsp; But plants larger than this are.&nbsp; The picture below is of 3 different Florida beggarweed plants in this field that illustrate this point.&nbsp; So, if beggarweed plants are towering above the peanut canopy (Plant #3), probably not worth the effort\/expense to apply Classic.&nbsp; Here is what the Classic label says about Florida beggarweed control in peanut:&nbsp;<em>&#8220;Apply before Florida beggarweed reaches 10&#8243; in height or begins to bloom&#8221;.<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-3.png\" alt=\"\" class=\"wp-image-4098\" style=\"aspect-ratio:1.775;width:639px;height:auto\" srcset=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-3.png 640w, https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-3-300x169.png 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/a\/AVvXsEiwiNYw19j9brijuQnARms_VnqPG5C9s6SYxlYsruAC7eMc1T0EkXNAPdoF7_iAsC95C7JPprhbEabOplzZTEGp0iHA6AssBKGa1Tl6H81V4AxOlZC939utevIHcMlupgkfqFAyoDUA0MRzUtJUPjNwKmqjVbvgLFgBbZVfg3vij7Bjr4pIMxm6o7CAjvo\"><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br>c) For more information about the use of Classic in peanut, check out the 2026 UGA Pest Control Handbook, page 225 (<a href=\"https:\/\/fieldreport.caes.uga.edu\/wp-content\/uploads\/2025\/02\/SB28-24.pdf\">https:\/\/fieldreport.caes.uga.edu\/wp-content\/uploads\/2025\/02\/SB28-24.pdf<\/a>)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d) Other options for Florida beggarweed control in peanut at this time of year include paraquat in a non-selective applicator (weed wiper, rope-wick), mowing, or hand-removal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>UNDERSTANDING SOYBEAN GROWTH STAGES<\/strong> <strong>(Dr. Nick Shay, UGA Grains Agronomist)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For those of us in the southern part of the state, early-planted soybeans are approaching an important management decision: When should a harvest aid be applied, and how can we confidently determine the crop\u2019s growth stage?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As a reminder, a soybean field is considered to have reached a particular growth stage when at least 50% of the plants have reached that stage. Late reproductive staging can be challenging because soybean plants generally progress toward maturity from the lower nodes upward. Therefore, evaluations of the later reproductive stages focus primarily on the upper four nodes of the main stem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This can be especially important in indeterminate varieties, which may continue producing new vegetative growth after reproductive development begins typically after the summer solstice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Colleagues from across the country recently conducted a national study evaluating harvest-aid timing across soybean maturity groups. Their results demonstrate that timing matters. Applications made prematurely, particularly at R6.5, can reduce yield by as much as 10%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Having confidence that the crop has progressed beyond R6.5 is therefore critical for protecting yield.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Key stages to consider include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>R6:<\/strong>\u00a0The seed fills the pod cavity but is still covered by a thin white membrane.<\/li>\n\n\n\n<li><strong>R6.5:<\/strong>\u00a0The seed is full, round, and shiny, and the white membrane is no longer present.<\/li>\n\n\n\n<li><strong>R7:<\/strong>\u00a0At least one normal pod on the upper four nodes of the main stem has reached its mature tan or brown color.<\/li>\n\n\n\n<li><strong>R7.1:<\/strong>\u00a0Seeds have begun changing from green to yellow.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">At R7, many pods across the plant may still appear green, or the plant may contain a mixture of green and brown pods. When at least one pod within the upper four nodes is tan or brown, most of the remaining green pods should have progressed to at least R6.5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Remember to evaluate multiple representative areas of the field. Before making a harvest-aid application, at least 50% of the plants should have one mature-colored pod within the upper four nodes. Once that threshold has been reached, yield has generally been safeguarded, and a harvest aid may be used to accelerate crop dry-down and potentially advance harvest by as much as 15 days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Always consult the product label and observe the required preharvest interval for the product being applied (call Prostko).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Good luck this harvest season. Please do not hesitate to reach out if you have questions or would like me to visit your county.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Resources:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-science-for-success wp-block-embed-science-for-success\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"SWcPvJiftP\"><a href=\"https:\/\/soybeanscienceforsuccess.org\/research-database\/\">Resource Database<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cResource Database\u201d \u2014 Science for Success\" src=\"https:\/\/soybeanscienceforsuccess.org\/research-database\/embed\/#?secret=gZZIE6OvS5#?secret=SWcPvJiftP\" data-secret=\"SWcPvJiftP\" width=\"500\" height=\"282\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/acsess.onlinelibrary.wiley.com\/doi\/10.1002\/agj2.70109\">https:\/\/acsess.onlinelibrary.wiley.com\/doi\/10.1002\/agj2.70109<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-4.png\"><img loading=\"lazy\" decoding=\"async\" width=\"657\" height=\"390\" src=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-4.png\" alt=\"\" class=\"wp-image-4099\" style=\"aspect-ratio:1.6846153846153846;width:657px;height:auto\" srcset=\"https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-4.png 657w, https:\/\/site.extension.uga.edu\/applingcrop\/files\/2026\/08\/image-4-300x178.png 300w\" sizes=\"auto, (max-width: 657px) 100vw, 657px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Photo credit: Jim Specht &#8211; Emeritus Professor of Agronomy, Iowa State University.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>All About The Pod<\/strong> <strong>Podcast (UGA Peanut Team)<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.podbean.com\/eas\/pb-8akyw-1b3edaaAll About The Pod Episode 25, S4 - Crop Conditions and Pest Management in Mid-August\">https:\/\/www.podbean.com\/eas\/pb-8akyw-1b3edaaAll About The Pod Episode 25, S4 &#8211; Crop Conditions and Pest Management in Mid-August<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We are quickly approaching the end of this years row crop season. So, most of this email is about finalizing managing this crop. It will soon be time to start blasting pods for maturity checks so give me a call and we will plan out some times to get those done together. Spider mites have [&hellip;]<\/p>\n","protected":false},"author":532,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,25,11,13,38,8],"tags":[],"class_list":["post-4097","post","type-post","status-publish","format-standard","hentry","category-cotton","category-meetings-and-events","category-peanuts","category-soybeans","category-water-irrigation","category-weed-control"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/posts\/4097","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/users\/532"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/comments?post=4097"}],"version-history":[{"count":1,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/posts\/4097\/revisions"}],"predecessor-version":[{"id":4101,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/posts\/4097\/revisions\/4101"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/media?parent=4097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/categories?post=4097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/tags?post=4097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}