Atrazine Alternatives For Pre Weed Control in Corn
Amit Jhala
Author
07/08/2021
Added
62
Plays
Description
Atrazine Alternatives For Pre Weed Control in Corn, Field Day, June 2021
Searchable Transcript
Toggle between list and paragraph view.
- [00:00:00.483](soft music)
- [00:00:06.410]Atrazine is one of the most
- [00:00:07.710]commonly used herbicides
- [00:00:09.410]in a corn products
- [00:00:11.190]in fields in Nebraska,
- [00:00:12.610]as well as in several states
- [00:00:14.180]in the Midwestern United States.
- [00:00:15.870]And because of the
- [00:00:17.960]more use of Atrazine,
- [00:00:20.350]we have seen some issues with a
- [00:00:22.680]groundwater contamination
- [00:00:24.670]in Nebraska, as well as in some other states.
- [00:00:26.870]So maybe in future,
- [00:00:28.230]there might be some more
- [00:00:29.280]restriction on use of Atrazine.
- [00:00:31.520]So the overall objective
- [00:00:32.820]of this project was to find out
- [00:00:36.220]herbicide alternatives
- [00:00:37.470]that can be applied pre-emergence
- [00:00:39.180]in corn and that should be without Atrazine.
- [00:00:42.020]So, we greatly appreciate
- [00:00:44.770]Nebraska Environmental Trust
- [00:00:46.220]to support this project
- [00:00:47.980]where we have evaluated
- [00:00:49.160]at least 17 different
- [00:00:51.630]pre-emergence herbicides
- [00:00:53.140]applied at planting.
- [00:00:54.750]So this corn was planted on May 5th,
- [00:00:58.880]and then pre-emergence herbicides
- [00:01:01.050]were applied on May 10th,
- [00:01:03.570]and we have not applied any post-emergence
- [00:01:05.820]herbicide in this project.
- [00:01:07.180]And so far we have seen at least
- [00:01:09.060]three to four herbicide programs
- [00:01:11.160]have provided
- [00:01:12.600]very effective weed control,
- [00:01:14.070]and they were all without Atrazine.
- [00:01:16.010]So that was the main
- [00:01:17.560]goal of this project.
- [00:01:19.218][Amit] In this plot,
- [00:01:20.480]Atrazine was applied by itself
- [00:01:22.470]at high rate of 2.2 quarts per acre,
- [00:01:25.940]pre-emergence
- [00:01:27.421]which has provided somewhat
- [00:01:29.210]activity initially for a week or so.
- [00:01:31.260]But then, Palmar Amaranth,
- [00:01:33.540]for example here
- [00:01:34.540]are really big and growing up.
- [00:01:37.090]So Atrazine by itself
- [00:01:38.700]is now no more long providing
- [00:01:40.300]very effective control.
- [00:01:42.320]So by itself,
- [00:01:44.450]growers are not considering to use it.
- [00:01:46.260]However,
- [00:01:47.093]Atrazine is still very good
- [00:01:49.080]tank mix partner in number of
- [00:01:50.550]the pre emergence,
- [00:01:51.390]as well as post emergence herbicides.
- [00:01:54.130]And this was just a
- [00:01:56.330]example of what will happen if you apply
- [00:01:58.620]only Atrazine by itself,
- [00:02:00.800]pre-emergence.
- [00:02:02.729][Amit] Acuron Flexi is
- [00:02:05.580]Acuron without Atrazine.
- [00:02:07.040]So, this Acuron Flexi herbicide
- [00:02:09.910]has provided
- [00:02:11.740]very effective
- [00:02:12.730]weed control,
- [00:02:13.770]and it has no Atrazine.
- [00:02:15.180]There are three other herbicide
- [00:02:16.420]active ingredients are there
- [00:02:18.050]in this pre-mix herbicide.
- [00:02:21.070]So we have some Atrazine
- [00:02:23.260]alternatives that can be considered
- [00:02:25.300]pre-emergence and that includes
- [00:02:27.751]Acuron Flexi is one of them.
- [00:02:30.538][ Amit ]In this plot,
- [00:02:31.580]Resicore was applied at two and a half
- [00:02:33.470]quarts per acre.
- [00:02:35.050]Which is also a very good
- [00:02:36.870]pre-emergence herbicide
- [00:02:38.080]with three different modes of action
- [00:02:40.430]without Atrazine.
- [00:02:41.420]So it has also provided
- [00:02:42.690]very effective residual control of
- [00:02:45.950]majority of the weeds,
- [00:02:47.090]particularly Palmar Amaranth
- [00:02:48.650]that we do have very common
- [00:02:49.900]here in this plot.
- [00:02:51.210]So, Resticore, Acuron Flexi,
- [00:02:54.140]Harness Max is also one of them
- [00:02:55.910]which has provided
- [00:02:56.760]very effective control of
- [00:02:59.160]majority of the weeds.
- [00:03:00.700]So we do have some
- [00:03:02.400]pre-emergence herbicides options
- [00:03:03.860]without Atrazine
- [00:03:04.780]that can provide very effective control.
- [00:03:07.440]And most of the growers,
- [00:03:08.550]they do consider
- [00:03:09.490]applying post-emergence herbicide
- [00:03:11.720]without Atrazine
- [00:03:13.130]that we can use.
- [00:03:14.050]But, we will wanted to see
- [00:03:16.310]the longest residual activity
- [00:03:18.100]from which program.
- [00:03:19.130]Therefore, we have not applied
- [00:03:20.370]any post-emergence herbicide
- [00:03:21.690]in this project.
- [00:03:23.170]However, there are some
- [00:03:24.960]herbicides that you can easily apply,
- [00:03:27.070]which are Atrazine alternatives
- [00:03:28.740]and can be considered
- [00:03:30.990]for pre-emergence
- [00:03:31.823]as well as post-emergence
- [00:03:32.990]herbicide activity.
- [00:03:33.831](bird chirping)
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/17282?format=iframe&autoplay=0"
title="Video Player: Atrazine Alternatives For Pre Weed Control in Corn"
allowfullscreen
></iframe>
</div>
Comments
0 Comments