{"id":226,"date":"2020-01-17T09:54:50","date_gmt":"2020-01-17T14:54:50","guid":{"rendered":"https:\/\/site.extension.uga.edu\/burkeag\/?p=226"},"modified":"2020-01-17T14:44:02","modified_gmt":"2020-01-17T19:44:02","slug":"cadre-damage-on-oats","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/burkeag\/cadre-damage-on-oats\/","title":{"rendered":"Cadre Damage on Oats"},"content":{"rendered":"

Cadre (imazapic) Carryover and Oats (Prostko)<\/a> <\/em><\/strong><\/p>\n

By: Peyton Sapp, Burke County Ag Agent<\/p>\n

I had 2 inquiries earlier this week about the potential of Cadre, when normally applied to peanuts during the growing season, to cause injury to fall planted oats.\u00a0 This was one issue I tackled very early on in my career here at UGA.\u00a0 Here are a few things for you to consider:<\/p>\n

1) According to a recent (2018) USDA\/NASS survey of pesticide use in peanut, Cadre is used on 59%<\/u><\/em><\/strong> of the peanut acres in Georgia.<\/p>\n

2) The official labeled rotation restriction for oats after an application of Cadre is 18 months!<\/u><\/em><\/strong><\/p>\n

3) Field research conducted in Georgia indicated that the rotation for oats could potentially be reduced to 4 months<\/u><\/em><\/strong> (like other small grains<\/em>) but the label was never changed (and will not be changed<\/em>) due to the limited amount of oat acres planted.\u00a0 Oats were planted on 70,000 acres in Georgia in 2019. U.S. total planted oat acres were 2,810,000 in 2019.<\/p>\n

4) Oats planted less than 4 months after a Cadre application could very likely be injured (Figure 1).\u00a0 Note that Cadre injury to oats also looks very much like phosphorus deficiency and\/or cold injury so these potential problems would need to be investigated as well.\u00a0 We had at least 1 freeze event here in Tifton around November 13.<\/p>\n

5) When Cadre was applied to bare-ground (a worse case scenario, i.e. 100% of Cadre reaching the soil surface and no peanut uptake\/metabolism<\/em>) either 5, 4, 3, 2, or 1 month(s) before oat planting, total forage yield was only significantly reduced by the 1 and 2 month timings (61.6% and 22.4% forage yield losses, respectively).\u00a0 Interestingly, oat grain yields were not reduced by any pre-plant application of Cadre.<\/p>\n

6) I do not have any hard data to back this statement up but it makes sense that oat injury could be worse in short-planted fields where Cadre-treated dryland<\/u><\/em><\/strong> peanuts were grown.<\/p>\n

7) Complete results of this Cadre\/oat research can be obtained from the following paper:<\/p>\n

Prostko, E.P., T.L. Grey, R.N. Morgan, and J.W. Davis.\u00a0 2005.\u00a0 Oat (Avena sativa<\/em>) response to imazapic residues.\u00a0 Weed Technology 19:875-878.<\/p>\n

8) Culpepper is the small grain weed guy so he would be more than happy to walk any and all small grain fields including oats!!!!!!<\/p>\n

\"\"<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Cadre (imazapic) Carryover and Oats (Prostko) By: Peyton Sapp, Burke County Ag Agent I had 2 inquiries earlier this week about the potential of Cadre, when normally applied to peanuts during the growing season, to cause injury to fall planted oats.\u00a0 This was one issue I tackled very early on in my career here at […]<\/p>\n","protected":false},"author":217,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-226","post","type-post","status-publish","format-standard","hentry","category-other"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/posts\/226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/users\/217"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/comments?post=226"}],"version-history":[{"count":4,"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/posts\/226\/revisions"}],"predecessor-version":[{"id":232,"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/posts\/226\/revisions\/232"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/media?parent=226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/categories?post=226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/burkeag\/wp-json\/wp\/v2\/tags?post=226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}