Weed Control in Xtend Flex Soybeans
Amit Jhala
Author
07/08/2021
Added
32
Plays
Description
Weed Control in Xtend Flex Soybeans, Field Day, June 2021
Searchable Transcript
Toggle between list and paragraph view.
- [00:00:00.000](gentle music)
- [00:00:06.208]XtendFlex Soybean is a new Soybean trait,
- [00:00:09.030]came to the market in 2019.
- [00:00:12.580]So what do we mean by XtendFlex Soybean?
- [00:00:14.870]So XtendFlex Soybean is resistant
- [00:00:16.680]to three different herbicides.
- [00:00:18.890]That includes Glyphosate, Glufosinate, and Dicamba.
- [00:00:22.550]Means active ingredient in RoundUp, Liberty,
- [00:00:26.260]and XtendiMax type of herbicides.
- [00:00:28.880]The main idea of this new trait is
- [00:00:31.290]it will provide more opportunity to growers
- [00:00:33.280]to use some additional post-emergent herbicide
- [00:00:35.950]with alternate, more effects,
- [00:00:37.570]and to control Glyphosate-resistant weeds.
- [00:00:41.460]So, for example, we have at least six weeds in Nebraska
- [00:00:44.640]are resistant to Glyphosate,
- [00:00:46.090]including waterhemp,
- [00:00:47.211]and palmer amaranth, and marestail,
- [00:00:49.840]kochia, giant ragweed, common ragweed.
- [00:00:52.240]So, you will not able to control them
- [00:00:55.040]by applying Glyphosate.
- [00:00:56.260]So, if you have XtendFlex Soybean,
- [00:00:58.080]that will give you an opportunity to apply
- [00:01:00.585]Dicamba-based herbicides post-emergence,
- [00:01:03.050]or you can also use Glufosinate-based herbicides,
- [00:01:06.220]such as Liberty or Interline post-emergence
- [00:01:09.010]in XtendFlex Soybean.
- [00:01:10.948]For example, in this plot,
- [00:01:13.320]Metribuzin was applied pre-emergence,
- [00:01:15.400]and then, a follow-up application of XtendiMax,
- [00:01:19.360]which is a Dicamba-based herbicide,
- [00:01:21.170]and then, RoundUp which is Glyphosate.
- [00:01:23.420]So, we are seeing very good control.
- [00:01:26.480]Last year it was corn in this field.
- [00:01:28.339]So, again, we have very good corn residues,
- [00:01:31.070]and soybean was planted no-till.
- [00:01:33.220]And then, pre-emergence herbicide was applied,
- [00:01:35.440]and it was followed by a post-emergence application
- [00:01:38.500]of a mixture of Dicamba and Glyphosate.
- [00:01:42.710]And, majority of the grass weeds are killed here,
- [00:01:45.390]because of the presence of Glyphosate,
- [00:01:47.190]and also, broadleaf weeds were limited
- [00:01:51.170]and they were also killed by Dicamba-based herbicide.
- [00:01:55.640]For example, this Palmer Amaranth
- [00:01:57.650]is showing symptoms of Dicamba.
- [00:01:59.948]These are very typical symptoms of Dicamba,
- [00:02:02.150]twisting of the main stem,
- [00:02:03.660]as well as the leaf-cupping
- [00:02:06.840]and I'm sure this plant will eventually die
- [00:02:09.390]after a week or so,
- [00:02:10.310]because Dicamba is a systemic herbicide,
- [00:02:12.320]and it just takes some time
- [00:02:14.250]to show the complete killing of the weed species.
- [00:02:18.140]For example, in this plot Metribuzin
- [00:02:19.800]was applied pre-emergence,
- [00:02:21.400]within a couple of days after planting soybean.
- [00:02:24.040]And then, post emergence application
- [00:02:25.830]of Glyphosate mixed with Glufosinate.
- [00:02:29.232]So, that's again a good combination.
- [00:02:32.453]These are typical symptoms of
- [00:02:37.450]Glufosinate-based herbicide.
- [00:02:38.720]It's a contact herbicide,
- [00:02:39.890]so it has provided a very good killing
- [00:02:41.940]of this palmer amaranth,
- [00:02:44.100]which was at least five inch tall
- [00:02:46.140]at the time of herbicide application.
- [00:02:48.760]Plus, Glyphosate was also in the mixture,
- [00:02:51.180]so it has provided good control of
- [00:02:53.260]a majority of the grasses,
- [00:02:56.360]as glyphosate is a very good grass killer.
- [00:02:59.330]So, the take home message from XtendFlex Soybean is,
- [00:03:03.170]this is a new trait,
- [00:03:04.270]and it will provide an opportunity
- [00:03:06.150]to apply some additional post-emergence herbicides
- [00:03:08.870]such as Dicamba, or Glufosinate,
- [00:03:11.780]or you can also tank mix them based on your requirement.
- [00:03:16.720]So, overall, it's a good system.
- [00:03:18.640]It has provided excellent crop safety
- [00:03:21.370]when we applied all three herbicides.
- [00:03:25.180]Post-emergence, for example,
- [00:03:27.198]combination of Glyphosate and Liberty
- [00:03:29.960]has provided excellent weed control,
- [00:03:32.610]as well as, we also have a lot of broadleaf weeds,
- [00:03:35.170]such as waterhemp and palmer amaranth in this field,
- [00:03:37.760]and a combination of Glyphosate and Dicamba
- [00:03:40.530]has provided a very good control of the broadleaf
- [00:03:43.654]as well as the grass weeds that we do have in this field.
- [00:03:47.370]Again, do not rely only on post-emergence application,
- [00:03:50.300]although this XtendFlex Soybean is resistant
- [00:03:52.630]to three post-emergence herbicides,
- [00:03:54.380]but we still recommend to start
- [00:03:56.990]with a very good pre-emergence herbicide
- [00:03:59.220]applied at planting,
- [00:04:00.320]or within three days of planting soybean.
- [00:04:02.740]And then, consider applying post-emergence herbicide,
- [00:04:06.720]such as Dicamba or Glufosinate.
- [00:04:09.533]Particularly in XtendFlex Soybean,
- [00:04:11.870]which is resistant to three different
- [00:04:13.670]post-emergence herbicides including Glyphosate.
The screen size you are trying to search captions on is too small!
You can always jump over to MediaHub and check it out there.
Log in to post comments
Embed
Copy the following code into your page
HTML
<div style="padding-top: 56.25%; overflow: hidden; position:relative; -webkit-box-flex: 1; flex-grow: 1;">
<iframe
style="bottom: 0; left: 0; position: absolute; right: 0; top: 0; border: 0; height: 100%; width: 100%;"
src="https://mediahub.unl.edu/media/17279?format=iframe&autoplay=0"
title="Video Player: Weed Control in Xtend Flex Soybeans"
allowfullscreen
></iframe>
</div>
Comments
0 Comments