{"id":1025,"date":"2020-05-22T15:34:43","date_gmt":"2020-05-22T19:34:43","guid":{"rendered":"https:\/\/site.extension.uga.edu\/worthag\/?p=1025"},"modified":"2020-05-22T15:34:44","modified_gmt":"2020-05-22T19:34:44","slug":"cracking-time-reminders-for-peanuts","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/worthag\/2020\/05\/cracking-time-reminders-for-peanuts\/","title":{"rendered":"Cracking Time Reminders for Peanuts"},"content":{"rendered":"\n

Following are some timely comments from Dr. Eric Prostko, UGA Weed Scientist<\/strong>.<\/em><\/p>\n\n\n\n

\n

As of May 11, 28% of the Georgia peanut crop was reported as planted.\u00a0 Thus, peanut growers should now be evaluating the success of their PRE weed control programs and deciding on the need for early postemergence or “cracking” herbicide applications.\u00a0 Here are a few reminders about cracking sprays:<\/p>\n\n\n\n

1) If a peanut grower started clean and used a good residual weed control program (i.e. Prowl or Sonalan + Valor + Strongarm) that was activated with irrigation or rainfall, the need for a cracking spray is questionable.\u00a0 Best thing in this situation is to go to the field and look to see what has escaped or not.\u00a0 If the field is relatively weed-free, a cracking spray may not be justifiable.<\/u><\/em><\/strong>\u00a0 \u00a0Growers might consider waiting until 30-40 DAP to pull the trigger earlier on a POST program such as Cadre + 2,4-DB + Anthem Flex or Dual Magnum or Outlook or Warrant or Zidua.\u00a0 <\/p>\n\n\n\n

2) If a grower decides to use a cracking spray, I would suggest a combination of paraquat + Storm or Basagran + Anthem Flex or Dual Magnum or Outlook or Warrant or Zidua.\u00a0 Suggested use rates would be as follows:<\/p>\n\n\n\n

  • a) 2 lb ai\/gal paraquat = 12 oz\/A or 3 lb ai\/A paraquat = 8 oz\/A\u00a0<\/li>
  • b) Storm 4SL @ 16 oz\/A or Basagran 4SL @ 8 oz\/A.\u00a0 If a grower wants to make his own “Georgia” Storm then use Ultra Blazer 2SL @ 16 oz\/A + Basagran 4SL @ 8 oz\/A.\u00a0<\/li>
  • c) Anthem Flex 4SE @ 3 oz\/A or Dual Magnum 7.62EC @ 16 oz\/A or Outlook 6EC @ 12.8 oz\/A or Warrant 3ME @ 48 oz\/A or Zidua 85WG @ 1.5 oz\/A or Zidua 4.17SC @ 2.5 oz\/A.<\/li><\/ul>\n\n\n\n

    3) If Dual Magnum or Outlook are used with paraquat + Storm or Basagran, no additional adjuvants are required.\u00a0 If Anthem Flex or Warrant or Zidua are used, a NIS @ 0.25% v\/v is suggested.<\/p>\n\n\n\n

    4) I would prefer peanut cracking sprays to be applied in 15 GPA and tractor speeds of 10 MPH or less to improve spray coverage and reduce the production of dust (which can greatly reduce paraquat efficacy<\/em>).\u00a0<\/p>\n\n\n\n

    5) Given the option of using either an AIXR or TTI spray tip, I would prefer the AIXR tip.\u00a0\u00a0<\/p>\n\n\n\n

    6) If growers use higher rates of paraquat and\/or delay paraquat applications past 28 days after cracking (DAC), the risk for yield loss resulting from paraquat injury is increased.\u00a0 Recent results from a 2018 weed-free field trial indicated that paraquat treatments applied ~35 DAC resulted in a 5.5% peanut yield reduction.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

    Following are some timely comments from Dr. Eric Prostko, UGA Weed Scientist. As of May 11, 28% of the Georgia peanut crop was reported as planted.\u00a0 Thus, peanut growers should now be evaluating the success of their PRE weed control programs and deciding on the need for early postemergence or “cracking” herbicide applications.\u00a0 Here are […]<\/p>\n","protected":false},"author":276,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,12,3],"tags":[],"class_list":["post-1025","post","type-post","status-publish","format-standard","hentry","category-agronomics","category-peanuts","category-weed-science"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/1025","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=1025"}],"version-history":[{"count":1,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/1025\/revisions"}],"predecessor-version":[{"id":1026,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/posts\/1025\/revisions\/1026"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/media?parent=1025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/categories?post=1025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/worthag\/wp-json\/wp\/v2\/tags?post=1025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}