{"id":2273,"date":"2018-02-28T13:02:11","date_gmt":"2018-02-28T18:02:11","guid":{"rendered":"http:\/\/site.extension.uga.edu\/applingcrop\/?p=2273"},"modified":"2018-03-01T13:55:17","modified_gmt":"2018-03-01T18:55:17","slug":"warm-weather-its-time-to-control-pigweed","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/applingcrop\/2018\/02\/warm-weather-its-time-to-control-pigweed\/","title":{"rendered":"Warm Weather. It’s Time to Control Pigweed"},"content":{"rendered":"

Pigweed plants are already germinating. With soil temps at 68 and 64 at the 2 inch and 4 inch level, this isn’t surprising.<\/p>\n

\"\"<\/a><\/p>\n

 <\/p>\n

Remember: whether you\u2019re spraying or harrowing to control pigweed, the size of the weed is critical. You can\u2019t kill a large pigweed with one pass of a disk, and bedding pigweed doesn\u2019t kill them either. Unless a person is willing to be in a field and disk multiple times (weekly, or every few weeks) from Feb. or March\u00a0until planting day, the field will not be clean at planting.<\/p>\n

With no residual herbicide seeds germinate quickly after disking and the field looks like this at planting:<\/p>\n

\"\"<\/a>\u00a0\"\"<\/a><\/p>\n

\"\"<\/a><\/p>\n

Using paraquat (or 2,4-d if you have cover crops that you’re not ready to terminate) is an option, but needs to be applied correctly, and possibly more than once before planting. Timeliness is important.<\/p>\n

Below are pigweed with\u00a0regrowth\u00a02 weeks after being bedded and then sprayed with paraquat. Don’t bed live pigweed and don’t wait until the weeds are too large to spray.<\/p>\n

\"\"\u00a0<\/a>\"\"<\/a>\"\"<\/a><\/p>\n

If you don’t want to spray or disk a field multiple times, what\u2019s the solution? Use a pre emergent herbicide. Whether it\u2019s cotton or peanut\u00a0being planted, you can disk the field (or use burn down herbicide)\u00a0and then put a pre emergent herbicide out. Products like valor give nearly 30 days of residual control.<\/p>\n

For peanut land Valor can be applied prior to planting and there\u2019s no waiting period. There are also other pre-emergent herbicides available depending on the crop grown.<\/p>\n

For cotton, on strip till land Valor can be applied 10 days ahead of planting as long as strip till operation (including a ripper shank) occurs between applying Valor and planting<\/p>\n

For no till or when the strip is run prior to spraying you\u2019ll need 21 to 28 days (28 days following a disk because no residue) between application and planting and add 7 more days if using reflex.<\/p>\n

If you are planting cotton conventionally, consider the split reflex system. The split reflex system works real well, especially in dryland fields. Incorporate 12 oz Reflex + yellow herbicide in moist soil then put another 8 to 10 oz of Reflex with Warrant or Direx behind planting and you are off to a great start.\u00a0 Stay timely with POST applications.<\/p>\n

The key is you have to start clean at planting, and the only way to do that is to not let pigweed get too large to control before planting.<\/p>\n

Pigweed aren’t the only things moving in this warm weather. Spidermites are already active in strawberries.<\/p>\n

\"\"<\/a>\u00a0\"\"<\/a><\/p>\n

Stink bug found hanging out in pecans while pruning.<\/p>\n

\"\"<\/a><\/p>\n

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

Pigweed plants are already germinating. With soil temps at 68 and 64 at the 2 inch and 4 inch level, this isn’t surprising.   Remember: whether you\u2019re spraying or harrowing to control pigweed, the size of the weed is critical. You can\u2019t kill a large pigweed with one pass of a disk, and bedding pigweed […]<\/p>\n","protected":false},"author":217,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,8],"tags":[],"class_list":["post-2273","post","type-post","status-publish","format-standard","hentry","category-uncategorized","category-weed-control"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/posts\/2273","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\/217"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/comments?post=2273"}],"version-history":[{"count":10,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/posts\/2273\/revisions"}],"predecessor-version":[{"id":2292,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/posts\/2273\/revisions\/2292"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/media?parent=2273"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/categories?post=2273"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/applingcrop\/wp-json\/wp\/v2\/tags?post=2273"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}